In mitochondria, the metabolism of sugars is completed: the pyruvate is imported ... This allows 15 times more ATP to be made than that produced by glycolysis alone. ... (A) Most of the energy would be released as heat if hydrogen were simply burned. ... and the outside positive (as a result of the net outflow of positive ions).
Answer:
The energy of proton transfer down the concentration gradient would be lost as heat and ATPs would not be formed by oxidative phosphorylation.
Explanation:
Oxidation of NADH and FADH2 via electron transport chain generates a proton motive force with intermembrane space being positive due to a higher concentration of protons as compared to the mitochondrial matrix.
Since the inner mitochondrial membrane is impermeable to protons, protons can be transported via channel proteins only. Movement of the protons down the concentration gradient via Fo proton channels drives the ATP synthesis on the matrix side.
According to the questions, the inside of the mitochondria has more protons. This would drive the movement of protons from the matrix to the intermembrane space via proton channels. Since the ATP synthase enzyme is present on the matrix side, the movement of protons towards the intermembrane space would not drive ATP synthesis and the energy will be lost as heat.
A written dialogue, from your perspective as the nucleus, explaining the parts of the cell to your mentee.
The Cell to Mentee
A cell is the basic unit of life of a human. The body cell contains cytoplasm in which organelles are present . There is a nucleus found in eukaryotic cell. It contains the genetic material in the form of DNA with proteins and chromosomes. Inside there is nuclear membrane. Outside the nucleus, there are many other organelles like mitochondria, ribosomes, golgi apparatus, endoplasmic reticulum, and many more.
The mountains found on the northern side of the Colorado Desert are named?
The mountains found on the northern side of the Colorado Desert are the San Bernardino and San Jacinto ranges, which are part of the larger Basin and Range Province.
Explanation:The mountains found on the northern side of the Colorado Desert are principally part of the San Bernardino and San Jacinto ranges. These mountain ranges are significant geographical features that define the region's topography. The San Bernardino Mountains lie to the north of the Colorado Desert and extend to more than 10,000 feet in elevation. Similarly, the San Jacinto Mountains, which are nearby, also rise sharply from the desert floor and are known for their stunning views and ecological diversity.
These ranges are part of the larger geologic province known as the Basin and Range Province, characterized by a series of elevated plateaus and low basins produced from extensional deformation and normal faults. The mountains are not only prominent in physical geography but also in cultural representations of the landscape, as seen in various artworks and historical accounts of the Wild West.
For example, the San Jacinto Mountains can relate to the description of the 'incredible mountains rising from the desert floor' with their striking presence and ecological significance, mentioned in the reference materials.
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All of the statements below describe how reproductive isolation drives speciation except .
1.
Behavior- two similar species may have different courtship or mating behaviors.
2.
A reproductive barrier keeps similar species from interbreeding.
3.
If the environment changes suddenly, evolution will be faster.
4.
Timing-two similar species may have different breeding seasons.
A reproductive barrier keeps similar species from interbreeding.
Many farmers now grow insect-resistant varieties of cotton. The gene for the favorable trait, in this case, insect resistance, is transferred to the cotton's DNA using A) DNA fingerprinting. B) tissue culture. C) bacterial plasmids. D) in vitro fertilization.
Answer: C bacterial plasmid
A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes.
It can replicate in the cell separately . The desired gene(which codes for the desired trait) is inserted with this DNA molecule(plasmid) and tranfers to the host, where it gets replicate and helps in spreading the trait.
The insect resistent is caused in cotton in the same way. The gene for the resistant for insects is introduced into the bacterial plasmid which then transfers to the cotton. where it gets replicated and spread the resistance for insects.
what controls when and how fast cells grow and divide?
A. amino acids
B. nucleotides
C. hemoglobin
D. growth factors
gradpoint, Growth Factors.
The factors that control the way of cell growth and division is referred to as growth factors. The correct option is D.
What are growth factors?A growth factor is a protein that stimulates the growth of specific tissues.
Growth factors are found in a variety of organisms, including insects, amphibians, humans, and plants.
These also play an important role in promoting cellular differentiation and cell division.
Thus, the correct option is D.
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Where does an eagle get the energy it needs to grow and to a fly?
A. from the animal eats
B. from the trees it nests in
C. from the air it flies in
D. from the water at fishes in
Select the four different types of organic compounds. (check all that apply)
__________ is a type of cell division used in asexual reproduction.
Mitosis
Meiosis
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Meiosis is the right one
Why are animals and plants unable to obtain nitrogen directly from the atmosphere
When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use. Other types of bacteria are able to change nitrogen dissolved in waterways into a form that allows it to return to the atmosphere.
A man is on trial for the murder of his wife. The prosecution on this case would like to bring forward an expert in the field of ballistics to prove the bullet found at the crime scene was that of the defendant. This ballistics expert has a PhD in forensic science and has worked at the Ballistics Dept. at the Forensic Center in Houston, TX for 25 years. His methods are widely accepted in the scientific community. The judge finds his testimony to be relevant and allows his testimony to be heard. Which correctly describes the admissibility of this expert's testimony?
A) Frye standard
B) Daubert ruling
C) Miranda rights
D) Ballistics rule
What is the correct order for processing a crime scene?
A) first officer reports to scene, securing the crime scene, crime scene survey, collection of physical evidence
B) crime scene survey, first officer reports to scene, securing the crime scene, collection of physical evidence
C) first officer reports to scene, collection of physical evidence, securing the crime scene, crime scene survey
D) first officer reports to scene, crime scene survey, securing the crime scene, collection of physical evidence,
1. B) Daubert ruling
Daubert standard or Daubert ruling is used in the court to determine whether a scientist testimony could be admissible. The judge will be the gatekeeper and has to determine the admissibility of the testimony based on several checklist. It might sound similar to Frye standard which only testing the general acceptability of the testimony of the scientist in the particular field.
2. A) first officer reports to scene, securing the crime scene, crime scene survey, collection of physical evidence
Processing crime scene should be done in an orderly fashion to make the evidence collected reliable. Securing crime scene is important to make sure there no one change or destroy the evidence there. After that, doing a survey so you could do your work more efficient and doing less damage to the scene. Collecting the evidence would be done last.
What is the name of the sugar that is part of a DNA nucleotide?
that would be deoxyribose my pal
The sugar component of a DNA nucleotide is deoxyribose, a five-carbon sugar missing an oxygen atom at the 2' position, which distinguishes it from ribose in RNA. The structure of deoxyribose allows it to form vital links with phosphate groups and nitrogenous bases to create nucleotides, the basic units of DNA.
Explanation:The sugar that is part of a DNA nucleotide is called deoxyribose. This five-carbon sugar, deoxyribose, differs from ribose (the sugar in RNA) by the absence of an oxygen atom at the 2' position — hence the prefix deoxy- in its name. The structure of deoxyribose is crucial for the formation of DNA, as it links with a phosphate group and a nitrogenous base to form a nucleotide, the building block of DNA.
The carbon atoms in the deoxyribose sugar are numbered as 1', 2', 3', 4', and 5'. This labeling is important because it determines where the phosphate groups and the nitrogenous bases attach to the sugar, influencing the structure and function of DNA. Specifically, the phosphate group is connected to the 5' carbon of the sugar via an ester linkage, and the nitrogenous base is attached to the 1' carbon, establishing the backbone of a DNA molecule.
What does adding fertilizer into a system cause problems
play many roles in the body and determine many traits. In humans, is responsible for traits. Is the blueprint for proteins. The section of dna that codes for a specific trait is called .
-DNA is the blueprint for proteins, which play many roles in the body. PROTEINS play many roles in the body and determine many traits. The section of DNA that codes for a specific trait is called a GENE. In fruit flies, straight wings are dominant and curly wings are recessive.
Answer:
The correct terms for blanks are protein, DNA, DNA, and gene respectively.
Explanation:
Proteins are complex molecules that play various types of important roles in the body such as metabolic reactions, structural role, defense and movement and many more. Proteins also determine many traits in humans, such as eye color, hair color and many more.
DNA is the genetic material that is found in all living organisms including humans. It also provides a template for mRNA synthesis which later translates to the proteins. Hence, DNA is known as blueprint for proteins.
Gene is the segment or part of the DNA that present on the chromosome, codes for a molecule that has a unique function. The DNA is first copied into RNA that can be directly functional or act as a template for a protein.
Thus, the correct terms for fill-ups are protein, DNA, DNA, and gene respectively.
According to United Nations predictions, what will be the total population of the world by 2100?
According to United nations predictions the total population of the world would be "11.2 billion" by 2100.
Explanation:The expected population of the current world is estimated as 7.6 billion and it is expected to reach 8.6 billion by 2030 and 9.8 billion by 2050. And it is expected to exceed up to 11.2 billion by 2100.
Answer:
11.2 Billion
Explanation:
The current population of the world is 7.6 billion and it is expected to increase by 47.4 % in 2100 to reach up to the mark of 11.2 billion . Out of 7.6 billion people, nearly 37% of the people resides in two countries i.e China and India. However, the major growth of population in 2100 is majorly expected in 47 least developed countries along with other African countries.
How can dehydration synthesis and hydrolysis reactions be modelled using household materials
The process of dehydration synthesis is a process which involves the loss of a water. So, using household materials you can make this reaction by mixing the vinegar and alcohol.
CH3COOH+CH3CH2OH⇌CH3COOCH2CH3+H2O
Hydrolysis is an opposite reaction (compared to dehydration synthesis) which involves the breakage of a bond in a molecule using water.
The reaction at home would be adding salt into water. Salts in water, will dissociate to form ions.
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Birds and mammals live in both warm and cold areas. Most reptiles and amphibians live in relatively warm areas. FORM a hypothesis that would explain this difference.
Which part of the body does the pelvis protect?
The pelvis is a bone located on top of out thigh-bones and their function, apart to give mobility to our legs is to protect both masculine and feminine reproductive organs, the bladder and the end of the digestive tract.
→ Below you see an image of the pelvis. (Which in the image is the butterfly-like structure connecting to the spine and thigh-bones).
Hope it helped,
BioTeacher101
A basic nerve cell in the central nervous system is called a
The basic element of the nervous system is the neuron, or nerve cell. So in this case a neuron.
A basic nerve cell in the central nervous system is called a neuron. These neurons work in conjunction with glial cells, also known as glia, to effectively transmit signals and maintain the nervous system's overall health.
Explanation:A basic nerve cell in the central nervous system is called a neuron. Neurons are responsible for the computation and communication that the central nervous system provides. These cells are electrically active and release chemical signals to target cells. The neuron's unique structure, including its dendrites and axon, allows it to effectively send signals across the nervous system.
Neurons also work in conjunction with glial cells (also known as glia), which provide support and insulation for neurons. Although they are often thought of as supporting cells, glial cells also play parts in buffering harmful ions and chemicals, providing myelin sheaths around neurons, and even participating in signal processing. A healthy nervous tissue hence consists of both neurons and glial cells.
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What is the relationship between the pH of pond water and the survival rate of animal species living in the pond
The pH of the pond water and survival rate of animal species living in the pond has a direct relationship with each other. Animal species can survive at a specific level of pH"Optimum pH" at which these species can show their maximum activity.
If we decrease the pH the pond water will become more acidic and it will become challenging for species to survive in the acidic environment and if we increase the pH the water becomes more alkaline and again it affects the marine life. So, the pH of pond water should be in normal ranges.
the answer is B AS THE PH DECREASES
The following image shows a cell before and during the process of mitosis. Before it undergoes mitosis, the cell contains 2n chromosomes.
A division happens in the next step. Which describes the cells after the next step is complete?
IF UR ON PLATO THIS IS THE RIGHT ANSWER. YOUR WELCOME
The correct answer is B: The cells will have 2n chromosomes and be diploid.
Diploid cell have two of each chromosome, one from each parent. When diploid cell undergoes mitosis, the result is two identical diploid cells (when haploid cell undergoes mitosis the result is haploid cell). This means that during the mitosis, cells reproduce genetically identical copies of themselves.
Answer:
The answer is B!
Scientists are concerned about the invasion of pythons in the Florida Everglades. Pythons are from Asia and are not native to the Everglades. They eat eggs and birds, many of which are endangered. The snakes were introduced to the Everglades when people released into the wild pet snakes that had grown too large. Very few animals in the Everglades prey on the snakes.
How will scientists be most effective at controlling this invasive species?
By collecting and removing the snakes from the Everglades
Answer: By collecting and removing the snakes from the Everglades.
Explanation:
An invasive species is the species which is introduced to a new region either intentionally by humans or by accidentally. These species compete with the native species for resources and may result in the extinction of the native species.
According to the given case, the Pythons are the example of invasive species as they are non-native to Everglades are they are eating eggs, birds which are endangered. The population of such snakes can be controlled by collecting and removing them from Everglades.
The cells that make up plant leaves are specialized in structure and function to allow them to produce food from sunlight in the process known as photosynthesis. Which statement below BEST summarizes why plant leaves are specialized structures that are generally flat and thin? A) to allow the transportation of nutrient materials into the roots B) to create the large surface area needed to dissipate heat energy C) to maximize the amount of light transmission through the cell layers D) to maximize the ability of the leaf to conserve water needed for photosynthesis
Answer:
The correct answer would be option C.
The structure of the leaf is a result of different adaptations that help in increasing the efficiency of its function, that is, photosynthesis.
Different adaptations include flat and thin structure, presence of stomata, and waxy layer or cuticle.
Flat and thin structure helps in increasing the surface area of a leaf.
Large surface area ensures that maximum sunlight can fall on the leaf.
Increased sunlight increases the rate of photosynthesis.
Similarly, thin structure help in the easy transmission of sunlight from the surface to inside cells.
The inner layers of cells contain chloroplasts which convert solar energy into chemical energy.
What force do scientists think was responsible for clumping matter together to form the first stars after the big bang
Final answer:
Gravitational forces clumped matter together to form stars after the Big Bang, with dark matter playing a crucial role in the structure formation. High-density regions catalyzed by initial vibrations and cooling became the seeds for galaxies. The pull of gravity on baryonic matter within dark matter halos leads to the formation of stars and galaxy structures.
Explanation:
Scientists believe that gravitational forces were responsible for clumping matter together to form the first stars after the Big Bang. This process involved the gas in the universe gathering into clouds or clumps under the influence of gravity, which then collapsed further to form stars. These clumps were associated with both dark and baryonic matter, with dark matter playing a significant role in the gravitational clumping and merger of structures, providing the 'skeleton' for the formation of galaxies. As the hot, primordial universe expanded and cooled, regions of higher density formed the first stars and galaxies. The structures that we see today, from solar systems to galaxy clusters, condensed from these initial clumps due to gravitational attraction, enhanced by small, initial density variations in the early universe.
Moreover, during the phase when the universe was only a few hundred thousand years old and quite hot, all the gas was vibrating strongly - similar to how sound waves travel in the air. These vibrations might have led to the concentration of matter into regions of different densities, leading to high-density peaks amidst lower-density spaces. When the universe continued to cool down, these concentrations of matter became the sites where galaxies eventually formed. Thus, the early vibrations of the universe, combined with its cooling and the influence of gravity, resulted in the accumulation of matter and the creation of stars within dark matter halos.
Which of the following is not true of exothermic reactions?
A. The products of an exothermic reaction have a lower bond energy than the reactants.
B. In an exothermic reaction, excess energy is released as heat.
C. There is more energy in the bonds of the products than in the bonds of the reactants.
D. Condensation and combustion are examples of exothermic reactions.
Option B is correct.
B. In an exothermic reaction, excess energy is released as heat.
Explanation:An exothermic reaction is a chemical reaction that releases energy by light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation: reactants → products + energy. Exothermic Reaction means "exo" meaning releases and "thermic" means heat.
Option C is not true for exothermic reactions as they actually involve products with lower bond energy compared to the reactants, due to the release of energy during the reaction.
The statement that is not true of exothermic reactions is: C. There is more energy in the bonds of the products than in the bonds of the reactants. This statement is incorrect because in an exothermic reaction, the bond energy of the products is lower than that of the reactants since energy has been released to the surroundings, typically in the form of heat, as the reaction progresses. The correct statements are that the products have a lower bond energy (A), excess energy is released as heat (B), and examples include condensation and combustion (D).
Which of the following is a TRUE statement?
A) Fats contain half the amount of energy than carbohydrates because they have less bonds.
B) Carbohydrates contain more energy than lipids because their bonds release more energy when broken.
C) Lipids contain more energy than carbohydrates because they contain more carbon to hydrogen bonds to release energy when broken.
C) lipids contain more energy than carbohydrates because they contain more carbon to hydrogen bonds to release energy when broken
Lipids contain more energy than carbohydrates due to their higher ratio of carbon to hydrogen bonds, which when broken during digestion, release more energy than those in carbohydrates.
Explanation:The statement C) Lipids contain more energy than carbohydrates because they contain more carbon to hydrogen bonds to release energy when broken is true. This is because lipids, also known as fats, have a higher energy content due to their higher ratio of carbon to hydrogen bonds. When these bonds are broken down during digestion, more energy is released compared to when bonds in carbohydrates are broken down. For example, a gram of fat provides about 9 kilocalories of energy, while a gram of carbohydrate provides about 4 kilocalories of energy.
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Problems in using common names to universally identify living things include:
Names mean different things to different people.
Foreign names may not be understood.
Many names may exist for the same organism.
There may be no common name for an organism.
Common names lack sufficient precision.
Enough common names are not available to name every living thing
What is being asked? It is understood by what is given that there is a scientific name and an English name for an organism, but there are other various names to call each organism. A different name of a different organism can mean something different depending on the person. Sometimes organisms don't have an English name. A name to me is a title or an identification to someone or something. Foreign names cannot be understood, because different people speak different languages, thus many names can exist for may different organisms. Of course, not all common names are perfect though.
What best illustrates the result of the process of meiosis
Which oraganisms are the most diverse forms of life a. Protist b. Fungi c. Animals d. Bacteria and archaea d. Plants
i think the answer is b.
Animals and protists are the most diverse forms of life. Animals exhibit a wide range of characteristics and behaviors, while protists represent a diverse group of eukaryotic microorganisms. Option A and C is the correct answer.
Animals exhibit a wide range of diversity in terms of their size, shape, behavior, habitat, and adaptations. From microscopic organisms like single-celled protozoa to complex multicellular organisms like insects, birds, mammals, and reptiles, animals come in various forms. They occupy diverse environments such as oceans, forests, deserts, and grasslands. Animals also display a wide variety of feeding strategies, reproduction methods, and locomotion. The number of identified animal species is estimated to be in the millions, highlighting their immense diversity. Option A and C is the correct answer.
Protists are a diverse group of eukaryotic microorganisms that don't fit into other kingdoms like plants, animals, or fungi. They include single-celled organisms like amoebas, ciliates, flagellates, and diatoms, as well as some multicellular forms like seaweeds. Protists inhabit a wide range of environments, including freshwater, marine environments, and soil. They exhibit diverse structures, behaviors, and nutritional modes, making them highly diverse.
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A man is on trial for the murder of his wife. The prosecution on this case would like to bring forward an expert in the field of ballistics to prove the bullet found at the crime scene was that of the defendant. This ballistics expert has a PhD in forensic science and has worked at the Ballistics Dept. at the Forensic Center in Houston, TX for 25 years. His methods are widely accepted in the scientific community. The judge finds his testimony to be relevant and allows his testimony to be heard. Which correctly describes the admissibility of this expert's testimony?
A) Frye standard
B) Daubert ruling
C) Miranda rights
D) Ballistics rule
Select the animal characteristics.
segmented or nonsegmented
presence or absence of connective tissue
green or nongreen
parallel veins or netted veins
teeth patterns
exo- or endo-skeleton
digestive system
locomotion
non segmented prescence non green endo digestive