forms the hydrophobic part of the plasma membrane

Answers

Answer 1

Final answer:

The hydrophobic part of the plasma membrane is comprised of the inward-facing tails of phospholipids, forming the lipid bilayer that separates internal cellular contents from the extracellular environment.

Explanation:

The hydrophobic part of the plasma membrane is formed by the tails of phospholipids. These hydrophobic tails face inward, shielded from water, while the hydrophilic heads face outward, interacting with the aqueous environment on both sides of the membrane. This arrangement creates the integral structure known as a lipid bilayer, which is essential for the function and stability of the cell membrane. Additionally, cholesterol and integral proteins, with their hydrophobic regions, also contribute to the hydrophobic nature of the membrane's core.


Related Questions

Which example below is a concern related to the debate over plant biotechnology? see concept 38.3 (page 837)?

Answers

A good example which concerns relates to the debate over plant biotechnology

is introduced genes which spreads into related wild species and also leads to the creation of superweeds.

Plant biotechnology is termed as a set of techniques which are used to adapt for specific opportunities or needs.
For example, a single crop may be required to provide sustainable food, protection of the environment, health nutrition, and income.

Predict a potential outcome of a mutated MAD protein

Answers

Final answer:

To predict a potential outcome of a mutated MAD protein, one must consider the mutation's impact on the protein structure, conserved sequences, and function, particularly in cell cycle regulation. Structural predictions using Mfold and functional assays like fluorescent binding assays will provide insights into the effects of the mutation.

Explanation:

Predicting a potential outcome of a mutated MAD protein involves considering several factors such as the structure of the protein, its conserved sequences, and its functional role in cell processes. A mutated MAD protein could potentially lead to alterations in cell cycle regulation, as the MAD proteins are involved in the mitotic spindle assembly checkpoint. Using tools like Mfold could help predict structural changes in the protein due to the mutation. If a mutation does not significantly alter the overall structure but changes a conserved sequence, the protein may still function but with lower efficacy or altered specificity. In such cases, fluorescent binding assays could be used to evaluate how well the mutant sensor RNA recognizes its target antibiotic. These assays are critical for understanding the impact of the mutation on the protein's ability to interact with other molecules.

A specific mutation's impact on the MAD protein might vary widely. For instance, if the mutation occurs in a domain vital for interaction with other cell cycle proteins, it might lead to uncontrolled cell division or cell cycle arrest. Nonetheless, without exact experimental data or a more defined scenario, any predictions made would be purely speculative.

Which of these currents flows from Florida and affects the climate of Europe?
A. Gulf Stream, B. California Current, C. Kuroshio Current, D. Alaskan Current

Answers

it would be a
hope it help u

Answer:

A) Gulf Stream

Explanation:

The current that flows from Florida and affects the climate of Europe is the Gulf Stream.

I hope this helps :)

Darwin observed fossils of huge animals such as glyptodon why were these fossils of interest to him

Answers

I believe its is because the fossils of these animals looked like living species and they had a connection to the modern. A fossil is any preserved evidence of life from a past geological age, such as the impressions and remains of organisms embedded in stratified rocks. Fossils are created when organisms die, are in cased in dirt and rock, and are slowly replaced by minerals over time.

How does a cochlear implant enable the deaf to hear? question 20 options: it receives incoming sound information and bypasses the auditory nerve to transmit information to the brain through the optic nerve. it receives incoming sound information and directly stimulates the auditory nerve to transmit information to the brain. it receives incoming sound information and directly stimulates the basilar membrane to transmit information to the brain. it receives incoming sound information and indirectly stimulates the auditory nerve to transmit information to the brain?

Answers

The correct answer is "it receives incoming sound information and directly stimulates the auditory nerve to transmit information to the brain."

Cochlear implants function to bypass the damaged cochlea due to sensorineural hearing loss (i.e. chronic noise exposure). Cochlear implants functions just like the hair cells and capture sound and transmit it via the vestibulocochlear nerve or the cranial nerve VIII and then to the temporal lobe in the auditory cortex. 


A cochlear implant enables the deaf to hear as it receives incoming sound information and directly stimulates the auditory nerve to transmit information to the brain. The correct option is B.

When sound is received, it directly activates the auditory nerve, which then sends the information to the brain. A cochlear implant is a medical technology that restores hearing to those who have severe or profound hearing loss.

It comprises of an internal component that is surgically placed into the cochlea and an external component that records sound and transforms it into electrical signals. The inside component has a collection of electrodes that directly stimulate the cochlear auditory nerve fibers. The electrical stimulation from the cochlear implant can directly stimulate the auditory nerve.

Thus, the ideal selection is option B.

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Sam’s teacher is trying to model the day/night cycle on Earth. One student holds a large yellow ball to represent the Sun. Another student holds a smaller brown ball to represent Earth. How should the balls be moved to model the day/night cycle on Earth?

Answers

Hello!

So, day and night are caused because the earth makes a full rotation on its axis once every 24 hours.

That way, have of Earth is facing the sun (it is morning on that side) and the other half isn't (which is why it is nighttime over there).

For example, if it's nighttime in Canada and America, it's morning in Pakistan and India. This is because Pakistan and India are facing the sun whilst Canada and America are not.

A N S W E R:

The balls should be moved so that half the Earth is facing the sun and the other half is not. This would be 24 hours. As for the sun, it is a gas, not a solid, so it doesn't rotate like one. However, that does not mean that it is not rotating to some extent.

Answer:B

Explanation:

USATP, SPIN THE BROWN BALL ON IT'S AXIS WHILE WALKING AROUND THE YELLOW BALL IN AN OVAL PATH.

what unwinds in multiple areas as DNA is ready replicated?

Answers

Hello,

Here is your answer:

The proper answr to your question is "Elongates".

Your answer is Elongates.

If you need anymore help feel free to ask me!

Hope this helps!

Final answer:

DNA unwinds at the origin of replication in the presence of helicase, which is followed by the binding of single-strand binding proteins and the action of topoisomerase to relieve supercoiling, allowing for the replication process to proceed with fidelity and completeness.

Explanation:

As DNA is prepared to be replicated, it unwinds in multiple areas starting at the origin of replication. An enzyme known as helicase uses the energy from ATP to open up the DNA helix, creating replication forks that extend in both directions. To prevent the strands from reannealing, single-strand binding proteins coat the DNA around the replication fork. The stress from the unwinding process, known as supercoiling, is alleviated by topoisomerase, which binds ahead of the replication fork and allows the DNA strands to relax and avoid tangling.

Various steps follow with enzymes like primase, DNA polymerase III, and DNA ligase playing crucial roles in the synthesis of new DNA strands and ensuring the accuracy and completeness of the replication process. These steps are vital for cell division and the transmission of genetic information to new cells.

View the animation below, then complete the quiz to test your knowledge of the concept. conducting of the heart

Answers

1. In the heart, an action potential originates in the (E) sinoatrial node.
The cardiac action potential is a term referring to the change in the membrane potential of heart cells causing the heart to contract. Cardiac action potentials are created by a group of specialized cells capable of generating automatic action potentials and are located in the right atrium of the heart. These cells are called sinoatrial node and sometimes are referred to as the natural pacemaker of the heart. This characterization originates from the fact that sinoatrial node continuously provides action potential and sets the rhythm of the heart function.

2. The sequence of travel by an action potential through the heart is (A) sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, Purkinje fibers.
As explained above, the cardiac action potential originates from the sinoatrial node. This action potential then travels through the atrioventricular node, which belongs to the electrical conduction system of the heart and is located between the atria and the ventricles. It is responsible for the electrical connection between the right atrium and the right ventricle. The action potential then travels to the atrioventricular bundle (or bundle of His), another part of the electrical conduction system of the heart. The atrioventricular bundle transmits the electrical impulses from the atrioventricular node to the bundle branches. The bundle branches then send the signal to the Purkinje fibers which send the electrical impulses to the ventricles, causing them to contract. 

3. The correct answer is A.
The generation of an action potential in the sinoatrial node causes the contraction of the atria. When the action potential passes from the sinoatrial node to the atrioventricular node, it slows down. This causes the transport of the electrical impulse from the atria to the ventricles to slow down. This delay enables the blood (from the contraction of the atria) to fill the ventricles before their contraction. 

4. This statement is true.
The interventricular septum is a structure which divides the two ventricles of the heart and it is composed of two branches, the left bundle and the right bundle branch. When the action potential reaches the interventricular septum, it then travels to the apex of the heart from where it travels upwards along the walls of the ventricles and the ventricular contraction begins.

5. This statement is true.  
The bundle branches gradually become Purkinje fibers located in the interior of the ventricular walls. Purkinje fibers are specialized cells and are responsible for conducting cardiac action potentials from the bundle branches to the ventricular walls. This signal transduction causes the muscle of the ventricular walls to contract. 

The gastrovascular cavity differs from the alimentary canal in that only the gastrovascular cavity _____.

Answers

The answer is single opening. The gastrovascular cavity varies from the alimentary canal in that only the gastrovascular cavity has only a single opening. In addition, an alimentary canal has two openings and food moves over it unidirectional. The gastrovascular cavity is a construction establish in primitive animal phyla. It is accountable in cooperation with the digestion of food and the transportation of nutrients all over the body.

help with a biology question?!
Describe the theory of evolution in your own words. How does this theory relate to the principle of natural selection?

Answers

the theory of evolution is that through time animals change due to their environment. Natural selection fits in because if an animal is fit to live in the environment, that animal will continue to live on while the one that doesn't dies. so if an animal has ability to blend in, and one doesn't the species of animal that can blend in Will Survive

Answer:

The theory of evolution is the scientific explanation of how life transformed on Earth from back in time to what we have now. These changes are understood to be based on interactions of organisms to their environment and to other organisms as well. Because evolution is a process carried out mostly through interaction with environment and other organisms during reproduction some individuals or populations develop mutations or adaptations that gives them a higher likely hood of surviving and thus growing and thriving. The process through which these individuals or groups of organisms survive and thrive in different conditions is what scientist call natural selection. However, that selection is only possible through the evolutionary changes of organisms.

Explanation:

Answer number 3 for me please

Answers

In prokaryotes, it is circular dna, naked (no associated proteins), plasmid often present, and there are one chromosome only,
While in eukaryotes, it has a linear dna molecule, associated with proteins, no plasmids, and there are two or more chromosomes.

Frank and his team are building sedimentation ponds to hold runoff water in a landfill. Which component of MSW landfill are they building?
cell
cover
bottom liner
storm water drainage system

Answers

The answer is storm water drainage system.

All of the options are components of the landfill but a storm water drainage system will allow to hold the runoff watter of the place.

It will keep the landfill as dry as possible and can be done in two different ways: By excluding liquids that come with solid waste or by keeping the rainwater out of the landfill.

Based on the information in the graph, what is the best conclusion to draw about Africa?

A. The fertility rate in Africa is very low.
B. Africa has reached its carrying capacity.
C. The birthrate is higher than the death rate.
D. There are few resources in Africa.

Answers

The answer is C. The birth rate is higher than the death rate.

We can see in the graph that in Africa the birth rate is very high, it is expected that by the year 2050 in Africa there will be 2 billion people, which is more than 1000% of the people living in Africa today. This means that more people are born than those who die.
The appropriate answer is C. The birth rate is higher than the death rate. The graph shows that the population has been increasing since the 1950s. In order to have an increase in the population, the birth rate must be higher than the death rate.
The graph does not represent in any way the carrying capacity or the available resources of the continent. An increasing population over time would indicate that the fertility rate would be relatively high and not low. 



 

What is the group of organs that removes waste from the blood and excretes it from the body?

Answers

Hello!

The Urinary System is a group of organs that removes waste from the blood and excretes it from the body.

True or false? convergent evolution is said to have occurred if the mouse species on two islands with similar habitats are found to have similar characteristics even though they originated from different species that did not have these characteristics.

Answers

I think the statement about convergent evolution is True. Convergence evolution is an evolution where organisms that are not closely related develop or evolve similar features due to their adaptation in a similar environment. This explains why the mouse species on two island with similar habitats develop similar characteristics.

The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on ________.
a. the membrane potential of the cells of the target organ
b. nothingall hormones of the human body are able to stimulate any and all cell types because hormones are powerful and nonspecific
c. the presence of the appropriate receptors on the cells of the target tissue or organ
d. the location of the tissue or organ with respect to the circulatory path

Answers

The correct answer is "the presence of the appropriate receptors on the cells of the target tissue or organ".

Hormones are chemical messengers that work to modify the target cell's actions. Hormones work by attaching to its appropriate receptor, then the receptor will be activated and signal transduction will take place. Signal transduction mechanisms will eventually activate a protein kinase which will phosphorylate a certain protein (usually a promoter for transcription) which will then start the production of a certain protein with a specific function. 

For instance, insulin is a hormone. Insulin will then bind to muscle and adipose cells which will activate signal transduction mechanisms that will eventually lead to the translation of the glucose receptor and channel proteins which will increase the uptake of glucose in the blood stream and lower the blood glucose levels.

The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on  the presence of the appropriate receptors on the cells of the target tissue or organ. Therefore, option C is correct.

Target tissues or organs have specific receptors on their cell surfaces or within the cells that are designed to bind with specific hormones.

These receptors are highly specific and allow the hormone to bind to the cell, initiating a series of biochemical and physiological responses within the target tissue.

thus, the binding of the hormone to its receptor triggers a signal transduction pathway, leading to the activation of specific cellular processes.

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Is it true that approximately 75 percent of human waste is made of water?

Answers

The amount of water in the human body ranges from 50-75%.

Changes of middle adulthood usually include a decrease in what?

Answers

sex hormones
;z)
is the answer o your question  

Answer:

all of the above

Explanation:

Describe examples of allopatric radiation in the madagascar-india landmasses and dusky salamanders.

Answers

During Pangea, Madagascar and India were one landmass. The species of frogs were homogenous across the landmass. However, after continental drift that began approximately 88 years ago, allopatric speciation occurred to form different species on the two continents.

The dusky salamanders on the two continents that could once reproduce viable offspring 88 years ago, cannot reproduce viably today because they have diverged into two different species now.


Is a class of diseases characterized by the uncontrolled division of cells?

Answers

The correct answer is "cancer"

Cancer is a class of diseases characterized by uncontrolled division of abnormal cells. The hallmark of cancer is dysplastic growth of cells that is resistant to apoptosis therefore the dysplastic growth of cells will eventually go into a tumorous growth consisting of abnormal cells and will eventually be vascularized and produce metastasis in other organs.

Functional design involves ______. reliability, maintainability, and usability perceptual maps reverse engineering a feasibility study

Answers

Functional design is the design that describes how the product will perform. 
During the functional design three performance characteristics are considered. It involves reliability (the probability that a product will perform its intended function for a specified period of time), maintainability (the ease with which a product is maintained or repaired) and usability (the ease of use of a product or service).

Functional design deals with reliability, maintainability, and usability, which are essential for evaluating a product's quality. The design process also includes feasibility studies, functional analysis, and iterative testing to refine usability. UML is used to express systems design comprehensively for implementation.

Functional design involves reliability, maintainability, and usability. These attributes are critical when engineers focus on a product's quality during the design process. When prototypes are not tested adequately, it may lead to a design lacking in these aspects. Furthermore, to evaluate the quality of a design, one might look at how well the design satisfies certain criteria, which include the aforementioned attributes.

Part of the feasibility study in an IT project is to ensure that the technology used is appropriate and feasible for the project's goals. Functional analysis in the design phase helps in developing a design architecture that assigns the product's functional elements to its physical components. Effective treatments and design strategies often emerge from knowledge of functional analysis and iterative testing procedures. Usability testing often involves different stakeholders like municipality officials and IT department personnel and is conducted in an iterative manner to refine the design.

The systems design phase includes creating a blueprint for the entire system, which would be expressed using tools like the Unified Modelling Language (UML). A flat organizational structure supports cross-functional teams in evaluating design alternatives and implementing changes effectively.

1. Thyroid hormones exert their effects on cells in a manner similar to steroid hormones; describe the mechanism of action of thyroid hormones.

Answers

Thyroid hormones diffuse through the plasma and enter the cell nucleus. The hormone will then bind to specific receptors for the hormone inn the nucleus forming a thyroid hormone receptor complex. This action later binds to specific regions of the DNA known as responsive element which results in increase in transcription of certain genes . Every binding is unique in the way they form and bind. An increase in gene transcription  means an increase in amount of mRNA.

Thyroid hormones, like T3 and T4, utilize transporter proteins to enter cells and regulate gene expression by binding to intracellular receptors. They affect many physiological aspects including metabolism and growth, akin to steroid hormones, which have a free diffusion mechanism through cell membranes.

The mechanism by which thyroid hormones exert their effects on cells is similar to that of steroid hormones. Thyroid hormones, mainly triiodothyronine (T3) and thyroxine (T4), can cross cell membranes with the aid of special transporter proteins. Once inside the cell, T3 and T4 bind to intracellular receptors located within the cell nucleus, where they regulate gene expression. This binding leads to the transcription of various genes, which subsequently increases the synthesis of specific proteins, including enzymes. These proteins contribute to the hormone's wide-ranging actions such as increasing the basal metabolic rate, impacting protein synthesis, and enhancing the body's response to catecholamines like adrenaline. Additionally, thyroid hormones play crucial roles in growth, neural maturation, and metabolism of proteins, fats, carbohydrates, and vitamins.

Comparison with Steroid Hormones

While both thyroid and steroid hormones alter gene expression, they differ in their transport mechanism across the cell membrane. Steroid hormones can diffuse freely through the lipid bilayer of cell membranes, whereas thyroid hormones require transport proteins. Another critical aspect of thyroid hormone function is the feedback control exerted through Thyroid Stimulating Hormone (TSH) produced by the pituitary gland, which regulates the production and release of T3 and T4 based on the body's demand.

Should access to healthy food be a right for everyone food inc

Answers

If it’s a yes or no question the answer is yes , I just don’t know how to explain it sorry

Identify the correct sequence of molecules, as a gene goes from coded information in the nucleus, to the product the cell wants to make.
a.dna -> messenger rna -> transfer rna -> protein
b.dna -> transfer rna -> messenger rna -> protein
c.dna -> transfer rna -> protein -> messenger rna
d.protein -> messenger rna -> transfer rna -> dna

Answers

The correct answer is A.

Answer:

A)  DNA -> messenger RNA -> transfer RNA -> protein

Explanation:

DNA -> messenger RNA -> transfer RNA -> protein mRNA carries the message from the DNA in the nucleus to the ribosome, where tRNA meets it and delivers the amino acids used by the ribosome to assemble the protein.  

If a species can adapt to a changing environment, or ____, its descendants will survive. a. evolve c. stay the same b. become extinct d. none of the above Please select the best answer from the choices provided A B C D

Answers

the answer to this is evolve.
The answer to your question is evolve

What brain area is referred to as the 24 hour rhythm generator?

Answers

The brain area responsible for the 24-hour circadian rhythm is the hypothalamus, more specifically the suprachiasmatic nucleus located on the anterior part of the hypothalamus. This area is responsible in organizing and programming bodily functions (i.e. cortisol secretion) in 24-hour oscillation called circadian rhythms. 

The nursing student is providing hygiene education for a family who will soon take an older adult client home from the hospital. which teaching provided by the nursing student requires nursing instructor intervention?

Answers

checking water temperature by hand before allowing the client to bathe.

Fog generally develops around areas that are
A) hot and dry.
B) hot and wet.
C) cool and dry.
D) cool and wet.

Answers

Answer:The real answer is D

Explanation:

Answer:

The answer is D

The law that states that each pair of chromosomes separates on its own in meiosis is called the _______. law of Punnett squares

law of independent assortment

law of hybrid crosses

law of segregation

Answers

The correct Answer would be A Law of independent assortment

The right answer is law of segregation

Mendel derives from his observations two fundamental principles, to which will be added later a third resulting. In his case, experiments on peas enabled Mendel to formulate the principles involved in heredity.

Mendel discovers that:

* A character can present two different forms (today called alleles or homologous genes).

* An organism inherits two factors for each trait (Mendel's hereditary factors are now called "genes").

* The dominant factor masks the recessive factor. Mendel noted the dominant factor using a capital letter and the other, the recessive, using the same letter but in lower case .

* The two factors separate during gamete formation (Segregation law that corresponds to the separation of homologous chromosome pairs during meiosis) .

* The pairs of factors separate independently of each other (independent segregation law that corresponds to the independent assortment of chromosome pairs homologous to metaphase 1 of the first meiotic division).

NEED ANSWER QUICK WIL GIVE BRANIEST!
All of the following except __________ releases dopamine naturally.
A. exercise
B. eating
C. sleeping
D. sexual activity

Answers

All of the following except C.Sleeping releases Dopamine naturally
I hoped this helps:) 

The answer is C

Hope this helps you out
Other Questions
Michelle Obama was reluctant to become involved in politics however, she is a popular first lady. Which is the best way to correct the punctuation in this sentence? A.) Michelle Obama was reluctant to become involved in politics, however she is a popular first lady. B.) Michelle Obama was reluctant to become involved in politics however; she is a popular first lady. C.) Michelle Obama was reluctant to become involved in politics; however, she is a popular first lady. D.) Michelle Obama was reluctant to become involved in politics, however, she is a popular first lady. What are the slope and the y-intercept of the linear function that is represented by the graph? How much time does it take a power drill accelerating at 64.3 rad/s2 to achieve 1500. rotations per minute(RPM)? What is the thing phoebe want mike to do? What is the exact volume of the cone? 80 ft 4003 ft 400 ft 418710 ft Two scientists do not agree on which type of grocery bag is better for the environment. What is themost likelyoutcome of their disagreement? A system at equilibrium is placed under stress by adding more reactant. If this reaction has a small equilibrium constant (Keq), how will the addition of this stress affect the equilibrium of this system.Question options:The equilibrium will shift to produce more reactant.The equilibrium will shift to produce more product.There is no way to predict how the stress will affect this system without more information.The reaction will generate more heat. Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. the store manager assures you that 13 of the 47 boxes on the shelf have the secret decoder ring. the other 34 boxes on the shelf have a different gift inside. if you randomly select two boxes of cereal from the shelf to purchase, what is the probability that both of them have the secret decoder ring? If the wind changes direction, and the ship veers off course, what type of feedback loop results in the ship returning to its course? What is the molar mass of a substance?a. the mass in grams of one mole of a substanceb. the number of particles in one gram of a substancec. the number of moles in one gram of a substanced. the mass in grams of one particle of a substance Select the correct answer. What is the LCM of the numbers 3, 6, and 9? 9 18 36 54 Which term refers to a form of collective social behavior that persists over a long period and gradually finds place as a tradition in society? a. law b. custom c. conformityd. deviance Which best explains why producers choose to specialize? Check all that apply.{} to increase competition{} to gain a comparative advantage{} to decrease the amount of goods produced{} to maintain market share{} to increase efficiency A rectangle is 25 inches long and 13 inches wide. What is the area of the rectangle? Enter your answer in the box as a fraction in simplest form A Eduardo le duele el codo Blake's "To Spring" depicts the season of spring as a(n) Blank Space __________.Question 5 options:desperate man caught in a storm at seayoung man returning to his belovedstrong man driving fast horsesold man seated on a cliff A blender takes in 180 J of electrical energy. Of the 180 J, 90 J are transformed into kinetic energy, 60 J are transformed into thermal energy, and the rest is transformed into sound. In the equation for centripetal force, which expression represents the centripetal acceleration of the object? What word, related to Greek or Latin root/affix is defined by fore (verb is to predict or estimate in advance)? What were the most powerful kingdoms to develop on mainland southeast asia by ad 1500