The greatest interaction occurs around the carbon carbon single bond.
Explanation:Single bonds in organic molecules are free to rotate, due to the 'end-to-end' (sigma) nature of their orbital overlap.
For example, In ethane rotation about the carbon-carbon sigma bond results in many different possible three-dimensional arrangements of the atoms.
In carbon carbon double bond and triple bonds the atoms are held together more strongly so they show less rotations as compared to carbon carbon single bond.
Final answer:
Rotation around carbon-carbon sigma bonds, such as in ethane, allows for different three-dimensional arrangements of atoms, despite a small energy barrier to rotation. Double bonds, on the other hand, do not permit such rotation, leading to a planar arrangement of atoms.
Explanation:
Rotation Around Carbon-Carbon Sigma Bonds
In organic chemistry, rotation can occur around single covalent bonds, which are known as sigma bonds. The carbon-carbon sigma bond, as found in ethane (CH3CH3), allows for free rotation of the bonded atoms, leading to various three-dimensional conformations. Such bonds are cylindrically symmetrical due to the 'end-to-end' overlap of sp³ hybridized orbitals. Although there is a small energy barrier of about 3 kcal/mol for rotation, it is generally not sufficient to restrict rotation except at very low temperatures.
Unlike sigma bonds, double bonds, described as pi bonds, do not allow for this free rotation, resulting in restricted movement and a planar arrangement of the atoms involved. In the case of sigma bonds, the spatial arrangement of the atoms changes upon rotation, although the molecule itself remains the same. In models or diagrams, different conformations resulting from rotations are represented by the different spatial orientations of the atoms or groups attached to the rotating single bond.
Which of the following happens during cell division?
Question 13 options:
The cell's volume increases.
It becomes more difficult for the cell to get rid of wastes.
It becomes more difficult for the cell to get enough oxygen and nutrients.
Each daughter cell receives its own copy of the parent cell's DNA
The skeletal part of the musculoskeletal system:
A. produces facial expressions.
B. helps the body to create heat.
C. protects the organs of the body.
D. eliminates wastes from the body.
Answer: C.
Explanation:protects the organs of the body.
what does it mean for molecuels to move down the gradient
" Up " or " against " a concentration gradient means from low concentration to high concentration. Moving in this direction requires some sort of en else.
Diffusion can be defined as __________. Question 5 options: movement through a cell membrane using energy from ATP active transport of particles up a concentration gradient movement of particles from a region of low concentration to a region of high concentration movement of particles from a region of high concentration to a region of low concentration
Diffusion is the movement of particles from a region of high concentration to a region of low concentration. It's a crucial biologic process used in cells for the transportation of substances like oxygen and nutrients, and it doesn't require energy because it operates along the concentration gradient.
Explanation:Diffusion can be defined as the movement of particles from a region of high concentration to a region of low concentration. This is a fundamental concept in the field of biology. It's an essential process that happens within cells and across the cell membranes, facilitating the transport of substances such as oxygen, nutrients, and other molecules. Unlike active transport, which uses ATP as a source of energy to transport molecules against the concentration gradient, diffusion doesn't require any energy because it works along with the concentration gradient.
Diffusion can be defined as the movement of particles from a region of high concentration to a region of low concentration. This process occurs passively and does not require the input of energy. It is driven by the random motion of particles, such as molecules or ions, and helps to equalize the concentration of substances in a system.
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This product of glycolysis, ____ is degrades in the final stages of aerobic pathways
The answer to your question is,
pyruvate
-Mabel <3
Final answer:
The product of glycolysis degraded in aerobic pathways is pyruvate, which is converted into acetyl CoA and further oxidized in the Krebs cycle to produce ATP, NADH, and FADH2.
Explanation:
The product of glycolysis that is degraded in the final stages of aerobic pathways is pyruvate. In aerobic conditions, pyruvate enters the mitochondria to be fully oxidized. This multi-step process includes the conversion of pyruvate to acetyl CoA, which is subsequently utilized in the Krebs cycle for further energy production. The complete oxidation of glucose during aerobic respiration involves both substrate-level phosphorylation and oxidative phosphorylation, resulting in the formation of ATP, GTP, and the reduction of NAD+ and FAD to produce NADH and FADH₂, respectively. These reduced coenzymes are essential for the mitochondrial electron transport chain that ultimately generates a significant amount of ATP.
Large bodies of water, such as lakes and oceans do not quickly fluctuate (change) in temperature. What is the reason for this phenomenon? Water is a versatile solvent due to its polarity Water doesn’t change temperature because is an acid. Water moderates temperature due to its high heat capacity Water acts as a buffer for concentration of chemical, which affect temperature.
C. Water moderates temperature due to its high heat capacity.
It is the _____ to show that the evidence presented by the forensic experts is not accurate and not properly processed.
crime scene investigator's job
defense lawyer's job
suspect's responsibility
witness's responsibility
Well its not Witness's responsibility or suspects responsibility.
I think is defense lawyer's job Because Criminal defense lawyers employed by the government are known as public defenders. A criminal defense lawyer researches, prepares and argues a case on the behalf of a client in order to defend them from the criminal charges.
Answer: crime scene investigator's job
Explanation:
A criminal defense lawyer is the either employed by the government or by the suspect or criminal on his behalf to fight the case against the prosecuting side. The role of the criminal defense lawyer is to research about the case and argue in the court of law with the prosecuting lawyer so as to defend the client from the criminal charges. In attempt to save the client the defense lawyer will try to make the available evidences against the client to be futile and unacceptable for conviction. Such a lawyer can convince the jury or judge that the given report by the forensic expert is incorrect and cannot be accepted as evidence against the client.
Jordon, a leukemia patient, can be treated using (Smooth Muscle Cell, Human Stem Cells, Mature Bone Cells) because these cells have the capacity to (Attack and Destroy Cancer Cells,Cuase Cancer Cells to Differentiate,Produce Healty cells)
Leukemia can be treated using human stem cells to attack and destroy cancer cells.
Answer:
Human stem cells - to produce healthy cells
Explanation:
Stem cell treatment is considered to be the most effective in combating leukemia.
The treatment is with cord cells, as these stem cells are younger, while those found in the cord are the same age as the patient.
After chemotherapy, which destroys cancer cells, stem cells are inserted to generate new cells and replace those that were affected by leukemia.
As part of an experiment, a student burns propane (C3H8) to produce carbon dioxide (CO2) and water (H2O). She remembers that she must follow the Law of Conservation of Matter when writing a balance chemical equation. Which of these equations adheres to the Law of Conservation of Matter?
A) C3H8 + O2 -> CO2 + H2O
B) C3H8 + O2 -> 3CO2 + H2O
C) C3H8 + 3O2 -> CO2 + 4H2O
D) C3H8 + 5O2 -> 3CO2 + 4H2O
The correct answer is: D) C3H8 + 5O2 -> 3CO2 + 4H2O
The law of conservation of mass (matter) states that the mass of the system must remain constant over time. So, the mass of the chemical components before the reaction must be equal to the mass of the components after the reaction, according to this law.
3 C,8 H, 10 O
the answer is D) C3H8 + 5O2 -> 3CO2 + 4H2O
There are many ways in which organisms in which and ecosystem interact. two of these relationships are parasitism and predation, in what way is parasitism similar predation?
Parasitism is the relationship between two species where one organism (the parasite) benefits from another organism (by living in it and) causing harm to the host parasite.
While predation is an interaction between two organisms (predator and prey) where the predator eats a prey or a part of its body.
Considering these two relationships, we can say that both of them grow at the expense of the host or prey. Therefore, both of the predator and parasite are dependent on prey or host for their survival.
Parasitism and predation are similar in way that in both process only one partner gets benefited while other gets harm.
Explanation:Parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm.
The preying of one animal on others.
In both case second party always get harm.
Order cyanocobalamin 1 mg/wk im. available: cyanocobalamin 1000 mcg/ml. dose to be given: ________
the answer is 1 dose
To determine the dose of cyanocobalamin to be given, we need to convert milligrams (mg) to micrograms (mcg) since the available concentration is in micrograms per milliliter (mcg/ml). The dose to be given would be 1000 mcg/week, or 1 ml/week of the available cyanocobalamin solution.
Explanation:The available concentration of cyanocobalamin is 1000 mcg/ml. To determine the dose to be given, we need to convert milligrams (mg) to micrograms (mcg) since the available concentration is in micrograms per milliliter (mcg/ml).
To convert milligrams to micrograms, we multiply by 1000. So, 1 mg is equal to 1000 mcg. This means that the dose to be given would be 1000 mcg/week, or 1 ml/week of the available cyanocobalamin solution.
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Which of the following is the correct term for the process by which nitrogen returns to the atmosphere? ammonification assimilation denitrification nitrification
The answer is Denitrification.
Denitrification is the reduction of nitrates back into the largely inert nitrogen gas (N2), completing the nitrogen cycle. This process is performed by bacterial species such as Pseudomonas and Clostridium in anaerobic conditions.
In the nitrogen cycle, denitrification by bacteria nitrates are converted to free nitrogen, which is released into the atmosphere, hence option c is correct.
What is the nitrogen cycle?Ammonia is transformed into nitrates and nitrites, which are subsequently acted upon by a different species of bacteria known as denitrifying bacteria.
Nitrates are transformed into free nitrogen and released back into the atmosphere via a process known as denitrification.
Organic nitrogenous substance from living things is converted into ammonium by ammonification. Nitrates are converted to nitrogen gas by bacteria through denitrification (N₂).
Nitrites are produced when microorganisms nitrify nitrates. By converting nitrogen gas (N₂) into organic molecules, bacteria fix nitrogen.
Therefore denitrification by bacteria nitrogen is released back into the atmosphere, hence option c is correct.
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Which of these is LEAST LIKELY to cause the extinction of organisms?
A) hunting animals for food
B) clearing land for agriculture
C) migrating from one region to another
D) new plant species competing with native plants
Final answer:
Migration is the least likely to cause extinction as it is a natural behavior, unlike overharvesting, habitat destruction, and competition with invasive species, which are significant drivers of biodiversity loss.
Explanation:
The option LEAST LIKELY to cause the extinction of organisms among the ones provided would be C) migrating from one region to another. This is because migration is a natural process that most organisms undertake in response to seasonal changes or to fulfill their lifecycle requirements. While individual organisms might face risks during migration, as a process it generally does not lead to species extinction.
In contrast, hunting animals for food (A), clearing land for agriculture (B), and new plant species competing with native plants (D) can contribute significantly to species endangerment and possible extinction. Overharvesting through hunting can deplete populations beyond recovery, habitat loss from land clearing can remove the home environment necessary for species survival, and invasive species can outcompete native species, leading to a decline in biodiversity. These factors are often interconnected with major causes of biodiversity loss, such as habitat loss, climate change, invasive species, and overharvesting.
The first accurate measurement of the size of Earth was made by _____.
The answer would be Eratosthenes
In 240 B.C., a soon to be famous Greek astronomer Eratosthenes made the first good measurement of the size of Earth.
Corpus delicti evidence at the Willow Lane crime scene is _____. the neighbors soiled trousers, evidently spattered with blood the scattered papers along the pathway through the hedge the bleeding victim exhibiting knife wounds in his back the 911 call reporting screams and a bleeding victim in the driveway
Which two types of particles are present in equal numbers in an atom, but not in an ion? A. protons and electrons B. protons and neutrons C. inner-shell electrons and outer-shell electrons D. protons and inner-shell electrons
An atom consists of a central nucleus with contains positively charged particles called protons and uncharged particles called neutrons. Negatively charged particles called electrons revolve around the central nucleus along specific orbitals. In a neutral atom, the number of positive protons and negative electrons is same. A metal atom has the tendency to lose electrons from its outermost electronic shell (orbital) to form a positive ion (cation). As a result, the number of electrons decreases. On the other hand, a non-metal atom has the tendency to gain electrons to form a negative ion (anion). As a result, the number of electrons increases. Therefore, electrons and protons are the two types of particles that are present in equal numbers in an atom but not in an ion.
(Answer) (A) protons and electrons
The correct answer is option A which is protons and electrons.
Explanation:An neutral atom contains equal amount of electron and protons.As electrons have negative charge and protons have positive charge and neutrons, third particles in atom are neutral.Since in ions, the number of electron and proton is not equal, thus giving a positive or negative charge.Predict where the structural differences would occur between an-pep and other enzymes that do not digest the peptides.
AN-PEP enzyme refers to a dietary supplement, which has been shown to dissociate gluten in the stomach. It has been proven to help the individuals suffering from Gluten sensitivity or Celiac disease. The scientific name of the enzyme is Aspergillus Niger prolyl endoprotease.
However, certain structural differences would take place between AN-PEP, which prevent the enzyme from digesting the peptides. Some of the differences like amino acid differences would be expected in the active site, and in the regions, which influence the folded composition of the active site.
Julian designs an experiment to see how well different liquids lubricate wooden surfaces. He sets up a number of identical wooden ramps and prepares to slide identical wooden blocks down them. He will time how long it takes each block to reach the end of the ramp. He covers one ramp with water, the second with motor oil, and the third with corn syrup.
What can Julian use as a control group for the experiment?
A.
a ramp with no liquid on it
B.
a second set of ramps covered with water, oil, and syrup respectively
C.
a ramp with no friction on its surface
D.
a block that drops straight down instead of sliding down a ramp
its A. A ramp with no liquid
Answer:
The answer is A. "A ramp with no liquid on it."
Explanation:
He needs a control group to make sure that he proof is valid.
By what process are these digestive enzymes excreted from pancreas cells?
Pancreatic juice is composed of two secretory products critical to proper digestion: digestive enzymes and bicarbonate. The enzymes are synthesized and secreted from the exocrine acinar cells, whereas bicarbonate is secreted from the epithelial cells lining small pancreatic ducts.
What factor makes cattle susceptible to fright?
A. innate aggression
B. mental incapacity
C. anxious temperament
D. poor spatial awareness
Answer:
poor spatial awareness is what i got correct
Explanation:
some groups of expert farmers grew potatoes, tobacco, tomatoes, and other plants what is the simple subject
A: some group of expert farmers
B: groups
C: potatoes, tobacco, tomatoes, and other plants
D: plants
Plants would be correct...
Marla dabs a small dot of red lipstick on 20-month-old lia’s nose. when put in front of a mirror, lia touches her nose, indicating the development of
Answer:
Leah is indicating the development of self-awareness.
Explanation:
In 1972 Beulah Amsterdam of the University of North Carolina published a study that toppled decades of research and kicked off self-awareness. The study procedure was simple: 88 babies aged 6 to 24 months were placed in front of a mirror, all of them had a small red spot on their noses. Then the mothers would point to the baby's reflection in the mirror and ask who the mirror was. The researchers watched the babies' behavior during the tests.
Only babies ages 20-24 could recognize themselves in the mirror. These babies pointed to the red spot on their own noses. This strongly suggests that they recognized the image as their own, became aware of self, so much so that they pointed to the roaring stain on their own noses.
Accordingly, we can see that when Lia touches the red spot on her nose she is demonstrating that developing self-awareness.
In an experiment, Dr. Travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. The amount of calcium is_______ variable. The risk of bone fractures_________ .
1. A reliable
an independent
a dependent
2.can be changed by the participants
can be changed by the researcher
could change with calcium
Osteoporosis refers to an ailment characterized by reduced bone mass and loss of bony tissue that may lead to weak and fragile bones. In an experiment, Dr. Travis tested the influences of the consumption of calcium on osteoporosis, the condition that results in enhanced chances of bone fractures.
In the given experiment, the amount of calcium is the independent variable, and the risk of bone fractures could get changed with the amount of calcium consumption.
The amount of calcium is independent variable.
Explanation:An independent variable is a variable in an experiment which is changed to see its effects on dependent variable.
In this experiment, to know about the causes of osteoporosis, the Ca level in blood or calcium intake in changed.
So the concentration of calcium will be independent variable.
Part 2.The risk of bone fractures is could be changed with calcium.
Explanation:In this experiment osteoporosis or risk of bone fracture is dependent variable.Dependent variable are results of experiment which can be changed by independent variable.As in experiment, Calcium concentration is independent variable.So the risk of osteoporosis depends can change with calcium.The number of urban areas worldwide has been decreasing due to lack of resources.
True
False
False
Explanation:The number of urban areas are not decreasing due to lack of resources. But in present world number of urban areas are increasing exponentially because people are moving towards the big cities for the better health, education and job facilities.
Answer:
false
Explanation:
bronchoconstriction is treated by inhaled
A. Histamine antagonists
B. Opiates
C. Pentobarbitals
D. Cholinergic antagonists
D. Cholinergic antagonists
Imagine that two test tubes are set up with 5 mls of starch in both and 500 amylase enzyme molecules added to one tube while 1,000 amylase enzyme molecules were added to the other. Would you expect them to finish digesting at the same time? If not, which one would complete the digestion first and why?
The test tube with 1,000 amylase enzyme molecules is expected to complete the digestion of starch faster.
Explanation:Digestion of starch starts in the mouth, where amylase breaks the starch chains into shorter pieces such as maltose. There are more amylase enzyme molecules in the test tube with 1,000 amylase molecules compared to the one with 500 amylase molecules. Therefore, you would expect the test tube with 1,000 amylase enzyme molecules to complete the digestion of starch faster than the other tube. This is because the higher concentration of amylase enzymes allows for more efficient and faster breakdown of starch molecules into sugars.
Parrotfish are herbivores that are found in coral reefs. To escape predation, a parrotfish will graze with a rabbitfish, which has venomous spines at the end of its pelvic fins. The rabbitfish does not benefit from this relationship. Which type of relationship do the parrotfish and the rabbitfish have in the coral reef AParasitism B Predation C Mutualism D Commensalismon
Commensal/commensalism is the correct answer.
If the mass of a material is 49 grams and the volume of the material is 9 cm^3, what would the density of the material be? I need the answer as well as the unit
The density is the quotient between the mass of a material and the volume occupied by it, The density can be expressed for a substance or for a mixture of substances. For example, water density in ambient conditions is equal to 1.00 g/cm3, which means that in 1 cm³ or 1 mL, there are 1.0 g of water. Therefore:
D = m / V
D = 49 g / 9 cm³
D = 5.444 g/cm³
A gas can be squeezed into a smaller container, but a liquid cannot. What does this suggest about the arrangement of particles in liquids and gases?
Gas is compressible while liquid and solids are not. Gas particles are free to go wherever they please. The gas particles are not compacted together very tightly whereas solid particles are compacted very tightly. Liquid particles are not super compacted but they’re still not able to move as freely as gas particles. Hope that helps
Answer:
Use the particle model of matter to explain why you can compress a gas easily, but you cannot compress a liquid very easily. The particles in a gas have very large spaces between them, so the particles can be 'squashed' closer together, meaning the gas can easily be compressed to take up a smaller volume.
Explanation:
In the freshwater marshes unit, there are several examples of humans now emulating nature.
Some examples of humans now emulating nature are industrial waste water treatment and ecosystem reestablishment.
Freshwater Marsh:
They are non-forested,non-forested, a non-tidal, marsh wetland that contains fresh water, and is continuously or frequently flooded.
Freshwater marshes primarily consist of grasses, and emergent plants.
They are located near a water source, such a big lake or a rives that provide a continuous or frequent supply of water.Humans are emulating the wetland because they are very helpful for reestablishing ecosystem, also used to industrial water treatment.Therefore, some examples of humans now emulating nature are industrial waste water treatment and ecosystem reestablishment.
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