Which of the following cellular processes in bacteria is NOT powered by a proton motive force?
A. efflux of toxic drugs
B. ATP formation by F1Fo ATP synthase
C. substrate-level phosphorylation
D. nutrient uptake
E. flagellar rotation
Answers
The correct answer is C) Substrate-level phosphorylation is NOT powered by a proton motive force in bacteria.
Substrate-level phosphorylation is a metabolic pathway in which a phosphate group is transferred from a high-energy intermediate to ADP, forming ATP. This process occurs during the conversion of a substrate molecule to a product and does not involve the use of a proton motive force. On the other hand, ATP formation by F1Fo ATP synthase, efflux of toxic drugs, nutrient uptake, and flagellar rotation are all cellular processes in bacteria that are powered by a proton motive force.
These processes involve the movement of protons across the cell membrane, which generates an electrochemical gradient that can be used to drive ATP synthesis or other energy-requiring processes.
The statement that is NOT correct is C, since substrate-level phosphorylation does not depend on the proton motive force.
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Related Questions
Give two structural features that can be used to separate housefly and millipede
to respective classes
Answers
(Hope this is correct and helps)
Two structural features that can be used to separate a housefly and a millipede are winged vs. wingless and legs per body segment.
What separates a housefly and millipede?Houseflies and millipedes can be distinguished based on several key characteristics:
Body Structure: Houseflies have a compact body structure with a single pair of wings and six legs attached to the thorax. In contrast, millipedes have an elongated and segmented body with numerous pairs of legs. The number of legs in millipedes can vary, but they typically have more than six pairs.
Winged vs. Wingless: Houseflies possess fully developed wings, enabling them to fly, while millipedes lack wings and are incapable of flight. Instead, millipedes rely on their numerous legs for movement.
Habitat and Behavior: Houseflies are commonly found in diverse environments, including urban areas, where they are attracted to food sources. They are known for their ability to quickly move and hover in the air. On the other hand, millipedes are primarily found in damp environments such as forests or gardens, where they feed on decaying organic matter and vegetation.
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The thymus functions strictly in maturation of B cells. T or F.
Answers
Answer: true
Explanation: The thymus functions strictly in maturation of B cells
WILL MARL BRAINLIEST IF ANSWERED CORRECTLY. PLEASE HELP!!!!! Which statement describes the differences van Neil discovered between how
purple sulfur bacteria perform photosynthesis and how other organisms
perform photosynthesis?
A. Purple sulfur bacteria use sulfur instead of water, do not require
light, and release hydrogen sulfide.
B. Purple sulfur bacteria use hydrogen sulfide instead of water, do
not produce oxygen, and release sulfur.
C. Purple sulfur bacteria use sulfur instead of water, do not produce
oxygen, and release hydrogen sulfide.
D. Purple sulfur bacteria use hydrogen sulfide instead of water, do
not require light, and release sulfur.
Answers
Answer:C
Explanation:
i took the test
Goal
Investigate the optimal amount of foliage for the red, short furred slinquettes' population.
My Hypothesis
If I change the foliage so it increases, then the final number of slinquettes with red, short fur will increase.
My Analysis
Now that you have collected and analyzed your data, you will write an argument that explains how your experiment answers your question. There are three parts: claim, evidence, and reasoning.
hide data
My Evidence
Trial # Fur Color Mutation Fur Length Mutation Foliage Temperature Final Number of Slinquettes Red, Long Fur Final Number of Slinquettes Red, Short Fur Final Number of Slinquettes Green, Long Fur Final Number of Slinquettes Green, Short Fur
1
lots mild
not present
0
endangered
1
not present
0
not present
0
3
lots mild
not present
0
endangered
1
not present
0
not present
0
4
lots mild
not present
0
endangered
1
not present
0
not present
0
5
lots mild
not present
0
endangered
1
not present
0
not present
0
6
some mild
not present
0
surviving
6
not present
0
not present
0
7
lots mild
not present
0
endangered
1
not present
0
not present
0
8
some mild
not present
0
surviving
6
not present
0
not present
0
Claim
Write a sentence that states what you found out about the scientific question you just investigated. Provide enough detail so that a friend who did not do the experiment could learn from your description.
Evidence
Provide and describe scientific evidence from your data table that supports your written claim. Remember to provide enough detail so that a friend who did not do the experiment could learn from your description.
Reasoning
Explain why your evidence (what you wrote in Box 2) supports your claim (what you wrote in Box 1). Also, explain the scientific principles behind your reasoning. Remember to provide enough detail so that a friend who did not do the experiment could learn from your description
Answers
Answer:
Claim: Increasing the amount of foliage does not lead to an increase in the final number of slinquettes with red, short fur.
Evidence: The data table shows the results of eight trials where the amount of foliage was manipulated. In all trials, regardless of the amount of foliage (whether "lots" or "some"), the final number of slinquettes with red, short fur remained at 0. There were no instances where increasing the foliage resulted in an increase in the population of slinquettes with red, short fur.
Reasoning: The evidence from the data table supports the claim that increasing the amount of foliage does not lead to an increase in the final number of slinquettes with red, short fur. This suggests that the presence or absence of foliage does not have a significant impact on the population of slinquettes with red, short fur.
Based on the provided data, it is reasonable to infer that factors other than foliage, such as temperature, fur color mutation, and fur length mutation, may have a stronger influence on the population dynamics of slinquettes. These factors could be responsible for the observed patterns in the data.
It's important to note that the reasoning provided here is based solely on the given data and analysis. In a real scientific investigation, additional factors, experimental controls, and statistical analysis would be required to draw definitive conclusions.
In a DNA molecule, which of the following forms a base pair with cytosine?
A. Adenine
B. Guanine
C. Thymine
D. Cytosine
Answers
In a DNA molecule cytosine binds with guanine to form a triple hydrogen bond.
Imagine you grew several populations of the resultant progeny of the cross in different environments – would your calculated h2 always be the same? why or why not? (2pts)
Answers
If you grew several populations of the resultant progeny of the cross in different environments, the calculated h2 (heritability) would not always be the same.
This is because heritability is influenced by both genetic and environmental factors. When you grow the progeny in different environments, each environment may affect the phenotypic expression of the traits differently. This can lead to changes in the proportion of phenotypic variance that is due to genetic factors, which in turn affects the calculated h2 value. In some environments, genetic factors may play a more significant role in determining the phenotype, while in others, environmental factors might be more influential. Therefore, the heritability will vary depending on the specific environment in which the progeny is grown.
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What are the four reasons why Mendel choose garden pea for his experiment?
Answers
Mendel chose garden pea for his experiment because they have shorter life span, are bise-xual, self pollinating and have visible physical characteristics.
Mendel conducted a lot of experiments during his study in genetics. He considered garden pea ideal for his experiments for a number of reasons. The first reason being that garden pea has a short life span and because of this they are able to grow very quickly and are easy to maintain. The second reason is that they have visible physical characteristics which makes them easy to observe and study.
The other two reasons being that garden peas have bise-xual flowers and because of this, these garden peas are self-pollinating. They do not need another plant for pollination and can also easily cross pollinate.
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What connective tissue is found in joints and provides a
smooth surface for bones to move against?
Answers
In an attempt to identify ecologically friendly methods for controlling mosquito populations, researchers conducted field experiments in a certain country where aquatic nymphs of the dragonfly brachytron pretense were used against the larvae of mosquitoes. the researchers concluded that brachytron pretense can be used effectively as a strong, ecologically friendly control of mosquitoes and mosquito-borne diseases. complete parts (a) through (i).
Answers
Answer:
Mosquito fish.
Explanation:
Another ecologically friendly methods such as mosquito fish is also used for controlling mosquito populations. Mosquito lays egg in the ponds so these mosquito fish feeds on the larvae of mosquito and remove or reduce the population of larvae so very less number of larvae change into adult so this method is also a very good method for controlling of mosquito and no bad effect on the environment.
Why is water harder in certain regions of the world than in others?
Answers
What would two of the same species compete for?
What would two different species compete for?
Answers
Answer:
answer 1 mates in the same area.
answer 2 the same resources in an ecosystem
Explanation:
hope this helps ^^
what are the tools or equipment used by manicurist or pedicurist
1
2
3
4
5
Answers
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Nail CutterCuticle PusherCuticle NipperNipperNail Buffer Nail FileDuring labor, certain hormones are released that cause the contraction of the uterus in order to push the baby out. When those hormones are sensed by the glands of the endocrine system, they secrete more of that hormone which keeps labor going until the baby is born.
Answers
Answer:
The endocrine system assists in maintaining and regulating different functions of the body by producing and discharging hormones. It comprises glands situated throughout the body, which produce chemicals known as hormones directly into the blood. The levels of hormones in the blood are monitored by a highly unique homeostatic mechanism known as feedback.
The two kinds of feedback are common, that is, negative and positive feedback, of this positive feedback, is the rare mechanism. It augments the changes done rather than opposing them. For example, the discharging of oxytocin from the posterior pituitary gland at the time of labor is an illustration of a positive feedback mechanism.
The stimulation of the muscle contractions, which pushes the baby via the birth canal is done by oxytocin. This discharging of oxytocin leads to an augmented or stronger contraction at the time of labor. This contraction is enhanced and intensify until the baby comes out of the birth canal. However, when the stimulus to the pressure receptor terminates, the generation of oxytocin ceases, which eventually results in the stopping of labor contractions.
Answer:
positive
Explanation:
e2020
NEED ANSWER ASAP
Students in a Biology class were formulating an argument about a cell they viewed under the microscope. Half
of the class argued it was a plant cell and the other half argued in favor of an animal cell. Below is the image the
students saw under the microscope. Which argument is supported by the image?
A. The students who said the plant cell are correct because there are chloroplasts
B. The students who said a plant cell are correct because there are mitochondria present.
C. The students who said animal cell are correct because there are chloroplasts present.
D. The students who said an animal cell are correct because there are mitochondria present.
Answers
Answer:
the answer would be A
Explanation:
Animal cells are oval and egg shaped so we can cancel out c and d
A is the correct answer because we can see green dots within the structure. Chloroplasts contain a green pigment called chlorophyll. This green pigment makes the chloroplast and the structure green (as we can see in the picture). Photosynthesis occurs in the chloroplasts, and it is where the plant gets its glucose from
Hope this helps!
how does the nucleus coordinate cell activities?
Answers
It should be noted that the nucleus directs all the cellular activities by controlling the synthesis of proteins.
What is a nucleus?
A nucleus simply means a membrane-bound organelle which contains the cell's chromosomes.
The nucleus controls the activities of the cell such as growth and metabolism. It also carries the genes and the structures that contain the hereditary information.
The nucleus contains encoded instructions that are vital for the synthesis of proteins in a helical molecule that is called deoxyribonucleic acid (DNA).
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Energy-rich molecules that organisms use to carry out daily activities are:.
Answers
Question 2 of 10
Why are X-rays used in security baggage scanners?
A. X-rays are high-wavelength rays, which causes them to easily bend
around the objects in the baggage.
B. X-rays either pass through or are absorbed by the objects in the
baggage, creating an image of the objects.
C. X-rays are low-energy rays, making it safe for the machine
operators.
D. X-rays are reflected by the objects in the baggage, creating an
image of the objects.
Answers
Answer:
B
Explanation:
X- rays either pass through or are obsorbed by the objects in baggage creating an image of the objects
The statement best summarizes the role of households in the flow of goods is households exchange money for products in resource markets. Thus, option C is correct.
Who are the consumers among households?The final consumers of the goods and services produced by the businesses are the households. According to their tastes and preferences, they create demand in the market. The businesses supplied and produced goods in response to customer demand. As a result, a nation's production line is determined by its households.
To run a business, workers are needed, and business owners, managers, and employees also have families. In return for labor, the business pays wages, which increase household income.
Therefore, A company's output may fall somewhere in the middle of these two ideas. A landscaping company, for instance, might offer a homeowner a service and sell them a tree as a product.
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Newborn babies and hibernating animals contain a large amount of brown adipose (fat) tissue (BAT). Certain proteins in the BAT cells increase the permeability of the inner mitochondrial membrane to protons, disrupting the proton gradient. Which of the following best predicts the effect of disrupting the proton gradient in BAT?
a. The pH of the matrix will increase, allowing the production of more ATP per gram of substrate.
b. The pH of the intermembrane space will decrease, allowing a steeper proton gradient to form.
c. Electron transport and oxidative phosphorylation will be decoupled, generating more heat but less ATP
d. The number of protons available to pass through ATP synthase will increase, resulting in more ATP
Answers
Answer:
c
Explanation:
Nancy visits a local reservoir where she feeds ducks and other birds. Every time she feeds them she notices that they fight for the best pieces and some do not get any. All living things struggle to get the necessary amount of food, water, and shelter. What is the term for this struggle?
A. overproduction
B. natural selection
C. variation
D. competition
Answers
How was Aristotle’s model similar to Ptolemy’s model?
Answers
Answer:
The answer is that both models stated that Earth is the center of the system around which other objects orbit. That is Aristotle's model similar to Ptolemy's model in the way that both stated that Earth is the center of the system around which other objects orbit.Explanation:
i got you
between water, plant, air,sun which is the most important and without which one can die
Answers
Answer:
I think the answer is air
I don’t think you can last 2 minutes without air
Explanation:
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Which of the following statements is true concerning diabetes?
A. Type 1 diabetes develops with the body doesn't make insulin or use it properly in
the body
B. Type 2 diabetes is often linked to obesity and presents itself when body cells
stop responding properly to insulin
C. People who have diabetes can usually manage and control it with a healthy diet,
exercise and insulin injections
D. All the above
Answers
What type of inhibitor can disrupt cellular respiration?
Answers
Answer:
nitric oxide
Explanation:
Endogenously produced nitric oxide (NO) interacts with mitochondrial cytochrome c oxidase, leading to inhibition of cellular respiration. This interaction has been shown to have important physiological and pathophysiological consequences.
what are the processes of biomass production in generation of gas. in a comprehensive way pls.
Answers
Thermochemical conversion is a process which is used to produce solid, gaseous, and liquid fuels.
What are the processes of biomass production in generation of gasBiomass is converted into energy through various processes such as Direct combustion means burning to produce heat. Thermochemical conversion is a process which is used to produce solid, gaseous, and liquid fuels while on the other hand, Chemical conversion is a process to produce liquid fuels.
So we can conclude that thermochemical conversion is a process which is used to produce solid, gaseous, and liquid fuels.
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Select all of the following that are true with respect to genomes. Check all that apply. a. In eukaryotic cells, the genome is usually divided up into multiple chromosomes. b. In prokaryotic cells, the genome is usually divided up into multiple chromosomes. c. In eukaryotic cells, the genome usually consists of just one circular DNA molecule. d. In prokaryotic cells, the genome usually consists of just one circular DNA molecule.
Answers
a. The genome in eukaryotic cells is typically divided into multiple chromosomes and d. In prokaryotic cells, the genome usually consists of just one circular DNA molecule are true with respect to genomes.
What are Genomes?
Genomes are the complete set of genetic material, including DNA and genes, that make up an organism. They determine an organism's traits and characteristics, from physical features to behavioral traits. Genomes can be found in all living organisms, including animals, plants, fungi, and bacteria.
In eukaryotes, the genome is typically divided into multiple chromosomes contained within the nucleus, while prokaryotes usually have a single circular chromosome in the cytoplasm. Advances in genomics research have enabled scientists to study and manipulate genomes, leading to new insights into biological processes and potential applications in medicine and biotechnology.
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the amount of a substance that is excreted in the urine is equal to the amount that is plus the amount that is minus the amount that is . question 2 options: filtered; reabsorbed; secreted reabsorbed; secreted; filtered filtered; secreted; reabsorbed reabsorbed; filtered; secreted secreted; reabsorbed; filtered
Answers
The correct answer is: The amount of a substance that is excreted in the urine is equal to the amount that is filtered plus the amount that is secreted minus the amount that is reabsorbed.
Filtration, secretion, and reabsorption are the three processes that occur in the nephrons of the kidneys to regulate the composition of the urine. Filtered substances pass from the blood in the glomerulus into the renal tubule, while secreted substances move from the blood in the peritubular capillaries into the renal tubule. Reabsorbed substances move from the renal tubule back into the blood in the peritubular capillaries.
Therefore, the amount of a substance that is excreted in the urine is equal to the amount that is filtered (which is the initial amount that enters the renal tubule), plus the amount that is secreted (which is added to the renal tubule from the peritubular capillaries), minus the amount that is reabsorbed (which is removed from the renal tubule back into the peritubular capillaries).
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the amount of a substance that is excreted in the urine is equal to the amount that is plus the amount that is minus the amount that is . question 2 options:
filtered; reabsorbed;
secreted reabsorbed;
secreted; filtered filtered;
secreted; reabsorbed reabsorbed; filtered;
secreted secreted; reabsorbed; filtered
how would you define a fruit? how can fruit be helpful in seed dispersal?
Answers
Answer:
Defined: the sweet and fleshy product of a tree or other plant that contains seed and can be eaten as food.
These fruits, including the seeds, are eaten by animals who then disperse the seeds when they defecate
Explanation:
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"If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, what product will be collected?"A. Transgenic bacterial plasmidsB. Hepatitus B frusesC. Hepatitus B vaccineD. Hepatitus resistant bacteria
Answers
If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, the product collected will be transgenic bacterial plasmids, inside the bacteria, in order to proove if the transgenic plasmid actually gives the bacteria resistance to the virus, it has to be grown in an infected medium.
The correct answer is option A.
What would soap, at a pH of 12, be
considered?
A. a buffer
B. acidic
C. basic
D. neutral
Answers
Explanation: the PH scale ranges from 0-14. 0 is most acidic while 14 is most aniline or basic. The middle is water which is neither acidic or basic, therefore the soap is considered basic.
When the chromosomes are making a copy during interphase how many chromosomes will there be after it makes a copy?
Answers
Answer: 2
Explanation: