which of the following statements is the reason that most cells cannot harness heat to perform work?
O temperature is usually uniform throughout a cell heat can never be used to do work O heat must remain constant during work heat is not a form of energy
Answers
The reason that most cells cannot harness heat to perform work is that the "temperature is usually uniform throughout a cell heat can never be used to do work".
In order to perform work, there must be a difference in temperature, such as a hot object and a cold object, which can be harnessed to do work.
Heat is a form of energy, but it is a low-grade form of energy that cannot be directly converted into useful work.
In living systems, energy is typically harnessed through the process of ATP synthesis, which involves the conversion of high-energy molecules such as glucose into ATP, a molecule that can be used to power cellular processes.
This process involves a series of chemical reactions that release energy, which is then used to drive the synthesis of ATP.
While heat can be generated as a byproduct of these reactions, it cannot be harnessed to do work because there is no temperature gradient to work with within a cell.
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Related Questions
Help I need this done by today!
Protease enzymes break down proteins into amino acids. The breakdown can be followed using albumen solution. Albumen is a protein which can be mixed with water to make a solution. Albumen solution is cloudy. When the protein is broken down, the solution goes clear.
Describe how you would carry out an experiment to test the effect of pH on protease.
Include details of control variables and the range of pH values that you would use.
Answers
To optimize the pH for the activity of the mentioned protease, perform the standard protease activity Assay with multiple buffer solutions (changing just the pH of the reaction), focusing on the pH range where the enzyme activity is high. However, keep in mind the buffer should be employed at a certain pH range.
Acetate buffers (pH 4.5-5.5), phosphate buffers (pH6-7.4), and Tris-HCl are examples (8-9). To assess pH stability, pre-incubate the enzyme in appropriate buffer solutions for a time set by you, say 2 hours, while periodically withdrawing an aliquot (maybe at 20-minute intervals) to be used as enzyme solution in the standard enzyme activity experiment. This allows you to compute the enzyme's residual activity and assess how stable it is at each pH.
What are Protease enzymes?Proteins are broken down into amino acids by protease enzymes. Albumen solution can be used to monitor the breakdown. Albumen is a protein that may be made into a solution by combining it with water. The albumen solution is hazy. The solution becomes transparent when the protein degrades.
Proteases are enzymes that break down protein peptide bonds; they are classified as acid, neutral, or alkaline proteases. Plants, animals, and microorganisms can produce these enzymes under a variety of conditions, including high salt concentrations.
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Where does the mutation that causes this disorder occur?
A
The mutation occurs on the DNA.
B
The mutation occurs on the RNA.
С
The mutation occurs on the ribosomes.
D
The mutation occurs on the amino acid.
Answers
Answer:
I believe its A
Explanation:
Which is an advantage of electricity generated from solar panels compared to coal?
Answers
Answer:
it causes no pollution to the environment
What is the relationship between mass and solar energy in plants?
Answers
Answer:
Plants increase in mass as they convert solar energy to chemical energy
evolution accounts for the unity and diversity of life, and the continuity of life is based on heritable information in the form of dna. in a short essay (100-150 words), discuss how the fidelity with which dna is inherited is related to the processes of evolution. review the discussion of proofreading and dna repair in concept 16.2.)
Answers
The fidelity with which DNA is inherited is closely related to the processes of evolution, as it accounts for the unity and diversity of life.
DNA, the heritable information, ensures the continuity of life by providing the genetic blueprint for offspring. High fidelity in DNA replication is crucial for maintaining the stability and integrity of genetic information.
During the process of evolution, random mutations and genetic variations occur within the DNA sequence. These mutations can lead to the development of new traits, which may be advantageous or disadvantageous for the organism's survival.
Natural selection acts upon these genetic variations, favoring individuals with advantageous traits that enhance their survival and reproductive success. This results in the gradual evolution of species and the diversification of life forms over time.
In summary, the fidelity of DNA inheritance plays a pivotal role in the processes of evolution, as it ensures the continuity of life and facilitates the emergence of new traits through genetic variation. This relationship between DNA fidelity and evolution ultimately shapes the unity, diversity, and adaptation of life on Earth.
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Plssss help meee I need to be done by 9pm
Answers
We may use a Punnett square to demonstrate why two people with type A blood (IAIA) cannot have a kid with type O blood (ii).
What are the two ways you may let students see the results of your Nearpod lesson assessment?You may easily start a class in student-paced mode and then provide the code to your students through email or your learning management system (LMS).
Can two persons collaborate on a single Nearpod?It's simple to share your favourite Nearpod material with a coworker. Through a series of easy steps, teachers can share lessons they've downloaded or prepared with another teacher. Teachers can improve collaboration and instructional consistency across grade levels, subjects, or smaller groups by using shared Nearpods.
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Which option describes the function of RNA polymerase?
Select one:
Carrying amino acids to the transcription site.
Moving mRNA strands into and out of the nucleus.
Splitting the DNA double strand into two single strands.
Forming an RNA strand using a DNA strand as a template.
Answers
Answer:
brown
Explanation:
have you pooped today?
The option which describes the function of RNA polymerase is that it forms an RNA strand using a DNA strand as a template. Thus, the correct option for this question is D.
What is RNA polymerase?RNA polymerase may be defined as a multi-unit enzyme that synthesizes RNA molecules from a template of DNA through a process called transcription. This enzyme is responsible for copying a DNA sequence into an RNA sequence, during the process of transcription.
RNA polymerase binds to DNA, separates the strands, then uses one of the strands as a template from which to assemble nucleotides into a complementary RNA strand.
It uses a single-stranded DNA template to synthesize a complementary strand of RNA. Specifically, RNA polymerase builds an RNA strand in the 5' to 3' direction, adding each new nucleotide to the 3' end of the strand.
Therefore, the option which describes the function of RNA polymerase is that it forms an RNA strand using a DNA strand as a template. Thus, the correct option for this question is D.
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do elements form chemical compounds to become more or less stable
Answers
How many meters does sunlight reach down into the ocean?
Answers
Answer 1000 meters
Light may be detected as far as 1,000 meters down in the ocean, but there is rarely any significant light beyond 200 meters.
Sunlight entering the water may travel about 1,000 meters (3,280 feet) into the ocean under the right conditions, but there is rarely any significant light beyond 200 meters (656 feet).
The ocean is divided into three zones based on depth and light level. The upper 200 meters (656 feet) of the ocean is called the euphotic, or "sunlight," zone. This zone contains the vast majority of commercial fisheries and is home to many protected marine mammals and sea turtles.
Only a small amount of light penetrates beyond this depth.
The zone between 200 meters (656 feet) and 1,000 meters (3,280 feet) is usually referred to as the “twilight” zone, but is officially the dysphotic zone. In this zone, the intensity of light rapidly dissipates as depth increases. Such a minuscule amount of light penetrates beyond a depth of 200 meters that photosynthesis is no longer possible.
The aphotic, or “midnight,” zone exists in depths below 1,000 meters (3,280 feet). Sunlight does not penetrate to these depths and the zone is bathed in darkness.
‘Photic’ is a derivative of ‘photon,’ the word for a particle of light.
Sunlight entering the water may travel about 1,000 meters (3,280 feet) into the ocean under the right conditions, but there is rarely any significant light beyond 200 meters (656 feet). The ocean is divided into three zones based on depth and light level.
Under the appropriate circumstances, sunlight entering the sea can penetrate around 1,000 meters into the ocean, although there is rarely much light beyond 200 meters.
The euphotic zone can stretch down to a depth of 80 meters (m) in crystal-clear tropical waters. The euphotic zone may be less than 10 m deep in places close to the poles since sunlight does not penetrate there as deeply. The euphotic zone may only be a few centimeters deep in murky, turbid water.
Light can only go so far below the ocean's surface due to the ocean's extreme depth. The water molecules scatter and absorb the light energy as it passes through them. Light is so dispersed at great depths that nothing is left to be detected.
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Imagine you are a systematist who has discovered an unfamiliar
animal. Which of the following observations about the animal will best
help you find its taxonomic classification?
The animal has an unpleasant temperament.
The animal has sharp, pointed teeth.
The animal was found near a herd of deer.
The animal bit you.
Answers
Answer:
1) taxonomy
2) species
3) the animal has sharp, pointed teeth
4) the current taxonomic system is based on the Linnaean system
5) he only had two kingdoms, animals and plants
Explanation:
did the quick check
The observation about the animal that will be helpful in finding its taxonomic classification is B. The animal has sharp, pointed teeth.
Taxonomy refers to the science of the classification of organisms into groups. The classification is based on the characteristics that the organisms have.
Therefore, in a situation whereby the person is unfamiliar with an animal, the shape of the teeth of the animal can be used for its classification.
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One of the scientists is shown gathering hair samples from an uncontaminated wolf den. Why would these samples be useful in studying animal life in the exclusion zone?
Answers
As the hair sample contain DNA of the particular organism, this can help in studying animal life in the exclusion zone.
What is exclusion zone?An exclusion zone is a location or activity that people are not permitted to enter or perform, for example, because it would be dangerous.
Hair DNA is genetic material that is used to build our hair. "Our hair follicle contains nucleic acid DNA, while our hair shaft contains mitochondrial DNA."
The hair follicle and the hair shaft are the two parts of hair from which DNA can be extracted and isolated.
Because the hair sample contains genetic information means DNA from the specific organism, it can aid in the study of animal life in the exclusion zone.
Thus, the DNA can give all the genetic information regarding the wolf.
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Please help im desperate i got sick and missed a week of class
Answers
Explanation:
discuss five pest, crops attacked mode of transmission effect and control
Which of the following theories sees aging as a process whereby cells are assumed to have a limitation on the number of times they can reproduce to repair damage?
wear-and-tear theory
Answers
The theory that sees aging as a process whereby cells are assumed to have a limitation on the number of times they can reproduce to repair damage is called the "telomere theory of aging." This theory proposes that aging is caused by the shortening of telomeres, which are the protective caps at the ends of chromosomes.
Each time a cell divides, the telomeres become slightly shorter, eventually reaching a critical length at which the cell can no longer divide and becomes senescent or dies. This process is thought to contribute to the progressive decline in tissue function that is characteristic of aging.
The wear-and-tear theory of aging, on the other hand, proposes that aging is caused by the accumulation of damage and the failure of repair mechanisms over time, leading to the breakdown of tissues and organs. This theory suggests that aging is a result of the body's inability to keep up with the constant wear and tear of everyday life.
While both theories have some evidence to support them, the telomere theory is more specifically related to the limitations of cell reproduction, while the wear-and-tear theory is more broadly related to the accumulation of damage and failure of repair mechanisms.
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what atoms would you expect to find in a living cell
Responses
Carbon, Calcium, Iron and Potassium
Carbon, Calcium, Iron and Potassium
Carbon, Hydrogen, Oxygen and Nitrogen
Carbon, Hydrogen, Oxygen and Nitrogen
Carbon, Nitrogen, Calcium, & Phosphorous
Carbon, Nitrogen, Calcium, & Phosphorous
Carbon, Hydrogen, Iron and Sodium
Carbon, Hydrogen, Iron and Sodium
Answers
The correct answer is Carbon, Hydrogen, Oxygen, and Nitrogen.
Living cells are composed of various atoms, but the most abundant elements found in biological systems are carbon, hydrogen, oxygen, and nitrogen. These elements form the building blocks of organic molecules such as carbohydrates, lipids, proteins, and nucleic acids, which are essential for the structure and function of cells.
Carbon is a fundamental element in organic compounds, providing the backbone for complex molecules. Hydrogen is present in most organic molecules, forming bonds with carbon, oxygen, and nitrogen. Oxygen is crucial for cellular respiration and is involved in various metabolic processes. Nitrogen is a key component of proteins, nucleic acids, and other essential biomolecules.
While other elements like calcium, iron, potassium, and phosphorus are also found in living cells and play important roles in specific biological processes, they are not as universally abundant as carbon, hydrogen, oxygen, and nitrogen.
Overall, the combination of carbon, hydrogen, oxygen, and nitrogen forms the basis of the molecular diversity and complexity observed in living cells.
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Explain how enzymes work, including the role of the enzyme substrate complex
Answers
Answer:
Enzymes make chemical reactions take less time by decreasing the activation energy of the chemical reaction. The role of the enzyme-substrate complex is to provide the energy to break or form bonds in chemical bonds.
Explanation:
Enzymes create chemical reactions in the body.
How does Enzymes work?
They actually speed up the rate of a chemical reaction to help support life.The enzymes in your body help to perform very important tasks.These include building muscle, destroying toxins, and breaking down food particles during digestion.Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways.Learn more:
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The organelle which controls cellular activity is the.
Answers
the Nucleus
Explanation:
Known as the cell's “command center,” the nucleus is a large organelle that stores the cell's DNA (deoxyribonucleic acid). The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information.
Write about the advantages of mushroom cultivation.
Answers
Answer: Mushroom cultivation has several advantages, including year-round production, sustainable farming practices, bio-remediation properties, culinary diversity, and cultural significance. Some other advantages of mushroom cultivation include its ability to be done in small spaces, its relatively quick harvest time, and its low water consumption compared to other crops.
Answer:
Benefits of Mushroom And Its Side Effects | Lybrate
Mushrooms are rich in proteins and dietary fibers but they are very low in carbohydrates and have negligible amounts of fat or cholesterol. Beta-glucans and chitin are the two types of dietary fibers present in mushroom and they help to increase satiety and reduce appetite.
What is the important in mushroom cultivation?
Compost provides nutrients needed for mushrooms to grow. Two types of material are generally used for mushroom compost, the most used and least expensive being wheat straw-bedded horse manure.
A(n) nonnative species occurs in one location on Earth and nowhere else true or false
Answers
False. When a species is considered nonnative, it is one that has been introduced outside of its normal range or distribution.
An endemic species is one that can only be found in a particular area or region.In ecology, an endemic species is one that is local to the area in which it is found. A species may only exist in a specific tiny geographic region, like a single island, or it may only exist in a bigger area, like a continent. Endemism is not the appropriate term to describe something if it is found elsewhere.
What is a species that is unique to the planet?The species is endemic. It only exists in one area and nowhere else on Earth in the wild. Madagascar is home to hundreds of indigenous plant and animal species. Due to their rarity, endemic species are extremely sensitive to threats.
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which of the following is true of an enzyme that is operating at its maximum rate? choose one: a. the concentration of substrate is equal to the km. b. the substrate-binding sites on the enzyme molecules are fully occupied. c. the concentration of substrate is half of the km. d. half of the substrate-binding sites on the enzyme molecules are occupied. e. increasing the substrate concentration will increase the turnover number.
Answers
The true statement about an enzyme that is operating at its maximum rate is that the substrate-binding sites on the enzyme molecules are fully occupied.
Option (b) is correct.
When an enzyme is operating at its maximum rate, it means that it is already working at its maximum capacity. This implies that all the active sites on the enzyme molecules are occupied by substrate molecules. Therefore, option (b) correctly states that the substrate-binding sites on the enzyme molecules are fully occupied.
Option (a) is incorrect because the concentration of substrate being equal to the Km (Michaelis constant) does not necessarily indicate the enzyme is operating at its maximum rate.
Option (c) is incorrect because the concentration of substrate being half of the Km does not necessarily indicate that the enzyme is operating at its maximum rate. It simply represents the substrate concentration at which the enzyme is working at half of its maximum rate.
Option (d) is incorrect because if an enzyme is operating at its maximum rate, it means that all the substrate-binding sites on the enzyme molecules are fully occupied, not just half of them.
Option (e) is incorrect because increasing the substrate concentration beyond the point where the enzyme is already operating at its maximum rate will not further increase the turnover number.
Therefore, the correct option is (b).
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At the end of Chapter 5, Berck and Helfand find compensating variation (CV) and equivalent variation (EV) for wolves in Yellowstone Park - a publicly provided good. Assume wolves are a good to the individual whose preferences we are modeling, i.e., the individual wants more wolves in the wild, all else equal. Suppose there exists 5 wolves in Yellowstone Park, and the average individual has income of \$y. The individual's consumption bundle is A, and the initial indifference curve is I0. Suppose an environmental group provides funds for habitat, and it's expected this habitat will result in 5 more wolves in Yellowstone. Assume the individual's income stays the same. The new consumption bundle is B, and the new indifference curve is I'. Complete the following tasks all on one graph. A. Using our properties of indifference curves (i.e., make them crescent shaped), plot the initial bundle (A) and label with appropriate income and wolf count. Draw the initial indifference curve (I
0
). Be sure to label the graph completely. (Hint: Easiest to place a composite good on the vertical axis, wolf count on the horizontal axis) ( 2 pts) B. Draw the new indifference curve and identify the new consumption bundle (B) while labeling with the appropriate wolf count. ( 2 pts) C. Identify the theoretical consumption bundle (call it C ), that uses the original wolf count but lies on the new indifference curve I'. (2 pts) D. Label the area on the on the vertical axis that corresponds to the EV and CV of these changes. Then in the margins, define CV and EV as it relates to this specific problem
Answers
The initial bundle (A) is represented by the consumption combination (A, I0) with an income of y. Consumer surplus and compensating variation are both concepts in microeconomics that relate to the study of consumer behavior.
The initial indifference curve (I0) is a curved line that slopes upward to the right, indicating that as the individual consumes more of the good, their preference for that good increases, but their preference for the other good remains constant.
The new indifference curve (I') is a curved line that slopes upward to the right, indicating that as the individual consumes more of the good, their preference for that good increases, but their preference for the other good remains constant.
The new indifference curve (I') is plotted on the any type of graph as a curved line starting from the origin, with the vertical axis representing wolf count and the horizontal axis representing income.
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Correct Question:
At the end of Chapter 5, Berck and Helfand find compensating variation (CV) and equivalent variation (EV) for wolves in Yellowstone Park - a publicly provided good. Assume wolves are a good to the individual whose preferences we are modeling, i.e., the individual wants more wolves in the wild, all else equal. Suppose there exists 5 wolves in Yellowstone Park, and the average individual has income of y. The individual's consumption bundle is A, and the initial indifference curve is I0. What is the difference between consumer surplus and compensating variation?
You observe a cell that has both a nucleus and a cell wall. Therefore, you conclude that it must be
which type of cell?
O animal
O prokaryotic
O plant
O human
O bacterial
Answers
Answer:
Plant
Explanation:
Plant cells contain cell walls made of cellulose, although there are cell walls too in fungi and in bacteria (not all).
HELO ME PLEASE IM BEING TIMED
Answers
what is the answer it is hard
Answers
I hope it is correct
PLEASE HURRRY! When you observed the BEAN plant with a hand lens, what did you note about root nodules?
Question 7 options:
I did not see any nodules present.
There was one large, red nodule present.
There were less than 6 nodules.
There were more than 6 nodules.
Answers
When the BEAN plant is observed with a hand lens, it was observed that there were more than 6 root nodules; option D.
What are root nodules?Root nodules are nodules found on the root leguminous plant wherein nitrogen-fixing bacteria live which help in fixing atmospheric into the soil.
A hand lens is a magnifying lens which is used to view and enlarge the size of small objects.
A bean plant is a leguminous plant.
Using a hand lens to observe a bean plant will show the presence of root nodules.
Therefore, when the BEAN plant is observed with a hand lens, it was observed that there were more than 6 root nodules; option D.
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Please Need help AAs soon as possible!
What is the difference between Original Remains, and Trace Fossils? Give 3 examples of each
Answers
Answer:
Please find the difference below and their respective examples
Explanation:
Previously existing organisms leave behind evidences of their existence in form of remains that has been collected and mineralized called FOSSILS. However, the fossils of an organism (plant or animal) can either be a trace fossil or an original remain/body fossil. The difference between the two are as follows:
- An original remain is the fossilized body or body part of an organism that once existed. For example, bones, shells and fossilized leaf are examples of original remains.
- On the other hand, trace fossils refers to any form of evidence, apart from the organism's body, that suggests the presence of that organism in that particular place at a particular time. Trace fossils are said to be illustrate presence of life but indirectly (via their activities). Examples of trace fossils are burrows, tracks, marks etc.
I will give you braines i promise
Answers
Answer:
a.
Explanation:
Displacement occurs when an object in or on water pushes some water
aside, even if just a little.
A. True
B. False
Answers
Answer:
A. True
Explanation:
bcoz Displacement occurs when an object in or on water pushes some water
aside, even if just a little.
Answer:
A. True
Explanation:
happy to help ya!
What does complex animals mean in biology
Answers
Answer:In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear.
Which of the 5 kingdoms carry out photosynthesis?
The 5 kingdoms are: Monera, Protista, Fungi, Plantae, and Animalia.
Answers
Answer:
Plantae is the kingdom that carries out photosynthesis
Answer:
Plantae, Monera, and Protista can carry out Photosynthesis
which physical factor is most closely linked with the mutualistic relationship coral have with zooxanthellae
Answers
The physical factor that is most closely linked with the mutualistic relationship coral have with zooxanthellae is light.
The zooxanthellae are photosynthetic organisms that live within the coral's tissues and provide them with energy through the process of photosynthesis. In turn, the coral provides the zooxanthellae with shelter and nutrients. Without adequate light, the zooxanthellae cannot photosynthesize and the coral may not receive enough energy to survive. Therefore, light is crucial for the survival of both the coral and the zooxanthellae in this mutualistic relationship.
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