in the process of glycolysis, four atp molecules are synthesized from four adp molecules. why does glycolysis not yield four molecules of atp?
Answers
In the process of glycolysis, four ATP molecules are synthesized from four ADP molecules. Glycolysis not yield four molecules of atp because two ATP molecules are required to start the process.
Adenosine triphosphate is referred to as ATP. It is described as an organic compound that powers a number of processes in living cells, such as chemical synthesis, condensate dissolution, the transmission of nerve impulses, and the contraction of muscles. ATP can be taken out and utilised to power processes when the cell requires energy or it can be saved for use in subsequent processes.
Pyruvic or lactic acid is formed as a result of the enzymatic breakdown of a carbohydrate using phosphate derivatives, and energy is stored in the high-energy phosphate bonds in ATP. This process is referred to as glycolysis. Glycolysis is a linear metabolic process in which enzymes catalyse processes that split glucose into two molecules, pyruvate or lactate, depending on the presence or absence of oxygen.
Due to the requirement of two ATP molecules to initiate the process, glycolysis does not result in the production of four ATP molecules. Therefore, choice C is right.
Complete question:
In the process of glycolysis, four atp molecules are synthesized from four adp molecules.why does glycolysis not yield four molecules of atp?
A TWO ATP molecules are lost in the cytoplasm.
B. Two ATP molecules are converted immediately back to ADP.
C. Two ATP molecules are required to start the process.
D. Two ATP molecules are absorbed in the mitochondria
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Related Questions
I have a squeaky popsocket ;-;
Answers
Answer:
i have a pusheen popsocket
Explanation:
i dunno i like pusheen and wanted to answer lol
2.2
Study the diagram of enzyme action and answer the questions that follow.
2.2.1 Provide labels for the parts N, O and P.
2.2.2 What property of enzymes is illustrated in the above diagram?
2.2.3
List TWO properties of enzymes other than the one mentioned in
QUESTION 2.2.2.
Answers
Answer:
2.2.1 O is the enzyme and N is the ligand.
2.2.2 In the figure, the enzyme shows lytic activity by generating two products like digestive enzymes.
2.2.3 Enzymes are indispensable for signal transduction and cell regulation, often via kinases and phosphatases. They also generate movement, with myosin hydrolyzing ATP to generate muscle contraction.
how might genetic variation arise?
Answers
Answer:
Genetic variations can arise from gene mutations or from genetic recombination (a normal process in which genetic material is rearranged as a cell is getting ready to divide). These variations often alter gene activity or protein function, which can introduce different traits in an organism.
Explanation:
your welcome
Where does most of the exchange of nutrients, wastes, and hormones between the blood and body fluids occur?
Multiple choice question.
A. Capillaries
B. Arteries
C. Veins
D. Arterioles
Answers
Most of the exchange of nutrients, wastes, and hormones between the blood and body fluids occurs in the capillaries.
Capillaries are the smallest of the blood vessels and are located between the arteries and veins. They are responsible for the exchange of nutrients, oxygen, carbon dioxide, and other molecules between the blood and the body. The walls of the capillaries are very thin, allowing for the exchange of gases, nutrients, and waste materials between the blood and the body tissues. Capillaries also allow for the removal of metabolic waste products from the body, such as lactic acid and urea. The presence of capillaries also helps regulate blood pressure by maintaining a balance between the amount of fluid that enters and leaves the tissue.
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FILL THE BLANK.
"The amount of gases that can dissolve in seawater depends on
temperature and ____________________.
Group of answer choices
nutrients
depth
currents
salinity"
Answers
"The amount of gases that can dissolve in seawater depends on temperature and salinity." The quantity of dissolved salts in saltwater is known as salinity. It is one of the main elements affecting how soluble gases are in salt water.
The idea of colligative qualities can be used to explain the connection between salinity and gas solubility. The osmotic pressure produced by salts in saltwater, such as sodium chloride, has an impact on the solubility of gases.
Osmotic pressure rises in tandem with rising saltwater salinity. Gases are less soluble in water as a result of the higher osmotic pressure. Because of this, saltwater with a greater salinity has a lesser ability than seawater with a lower salinity to dissolve gases.
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when a child is born with down syndrome when did the mutation occur
Answers
Answer:
Down syndrome occurs when the nondisjunction occurs with Chromosome 21. Meiosis is a special type of cell division used to produce our sperm and egg cells.
which bacteria ferment milk lactose, producing acids that curdle milk?
Answers
The bacteria that ferment milk lactose, producing acids that curdle milk are lactic acid bacteria (LAB).
Lactic acid bacteria are bacteria that responsible for the fermentation of lactose, which is the primary sugar found in milk. The most common lactic acid bacteria used in the fermentation of milk are Lactococcus lactis and Lactobacillus bulgaricus. These bacteria convert the lactose in milk into lactic acid, which causes the milk to curdle and form yogurt or cheese.
Other lactic acid bacteria that can be used in the fermentation of milk include Streptococcus thermophilus and Lactobacillus acidophilus. These bacteria are also used in the production of fermented milk products such as kefir and sour cream. In summary, lactic acid bacteria (LAB), including Lactococcus lactis, Lactobacillus bulgaricus, Streptococcus thermophilus, and Lactobacillus acidophilus, are responsible for the fermentation of milk lactose, producing acids that curdle milk.
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Photoautotrophs are able to convert inorganic materials into glucose. In order to do this, they require:
Answers
Answer: sunlight, carbon dioxide, and water
Explanation:
This happens in photosynthesis
One theory of early life on Earth states that the first life forms did not use oxygen for respiration and were unable to make their own food. Based on this theory, which types of organisms were most likely present?.
Answers
Answer:
The deep-sea vent theory suggests that life may have begun at submarine hydrothermal vents spewing key hydrogen-rich molecules. Their rocky nooks could then have concentrated these molecules together and provided mineral catalysts for critical reactions
Explanation:
(please helpp)
Which sources contain fresh water? Check all that apply.
a. groundwater
b. oceans
c. wetlands
d. rivers
e. ponds
f. seas
Answers
a, c, d, e
Groundwater, wetlands, rivers, and ponds all contain fresh water, whereas oceans and seas contain salt water. :)
Answer: Groundwater, wetlands, rivers, and ponds
Explanation: correct on Edge
why do capillaries need to be thin walled ?
Answers
In a physical change, like changing state from a solid to a liquid, the substance itself doesn't change. How is a chemical change different from a physical change?
Answers
Answer:
A chemical change is when the substance becomes something new.
Explanation:
Think about it like paint. Your two substances and red and blue. When you mix them together you get purple. It's no longer red paint or blue paint, it's purple paint. That's a chemical change.
Would the Energy-capturing backpack be a good solution for the rescue team? Why or why not?
Answers
The Energy-capturing backpack is a good solution for the rescue team.
What is an energy capturing backpack?The energy capturing backpack is made up of a weight attached to the top part of a pendulum, which swings back and forth as a person walks, and the weight adds momentum. And the bottom part of the pendulum connects to the energy harvesting module via the springs on either side of the device.
The entire system is housed in a frame that the user can wear like a traditional backpack. The energy harvesting backpack is approximately 5kg in weight. The main and very promising advantage of the new energy harvester is that the user does not need to do anything else to generate electricity, such as cranking a handle. Furthermore, the energy imposes no additional physical demands on the wearer beyond the weight of the device itself.
It should be noted that this is important for those who are involved in rescue activities as it gives them the needed energy and is lighter as well.
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part a during mendel's lifetime most people believed in the blending theory of inheritance which said that offspring were a blend of their parents traits. mendel's systematic crosses allowed him to replace the blending theory with the particulate theory of inheritance which says that traits are passed on because discrete units of inheritance, we now call genes, are passed on. in the twentieth century the discovery of what type of inheritance initially seems to support the blending theory in the f1 generation of a cross, but then disproves the blending theory and supports mendel's particulate theory in the f2 generation when some individuals exhibit the original parental phenotypes? during mendel's lifetime most people believed in the blending theory of inheritance which said that offspring were a blend of their parents traits. mendel's systematic crosses allowed him to replace the blending theory with the particulate theory of inheritance which says that traits are passed on because discrete units of inheritance, we now call genes, are passed on. in the twentieth century the discovery of what type of inheritance initially seems to support the blending theory in the f1 generation of a cross, but then disproves the blending theory and supports mendel's particulate theory in the f2 generation when some individuals exhibit the original parental phenotypes? the discovery that there can be more than 2 alleles for a gene. the discovery that one gene can produce many different proteins. the discovery of incomplete dominance
Answers
An old biological notion from the 19th century is called blending inheritance. According to the hypothesis, a kid receives a trait by averaging the values of its parents for that trait.
As an illustration, pink-flowered children might result from breeding a red flower variation with a white variant of the same species. Inheritance was blended according to Charles Darwin's idea of inheritance via pangenesis, which included contributions to egg or sperm from every organ of the body.
Fleeming Jenkin attacked Darwin's theory of natural selection because of his dependence on this mechanism, arguing that blending inheritance would average out any unexpected advantageous property before selection had a chance to work.
The widespread acceptance of particulate inheritance led to the rejection of blending inheritance.
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in your response be sure to include:
decomposer(s)
materials plants use
Use the model above to help you
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0/1600 Word Limit
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- PLEASE HELP THIS IS DUE SOON
Answers
From the image, there is a cycling of nutrients and minerals throughout the ecosystem as shown.
What is the ecosystem?
An ecosystem is a complex network of living organisms, their interactions with each other, and their physical environment. It encompasses all the biotic (living) and abiotic (non-living) components of a particular environment and the interactions among them.
The water and the air are important in the photosynthesis of the plant. The cricket feeds on the plant and the toad feeds on the cricket. When the cricket dies, the bacteria see to its decomposition(decomposers) and return the inorganic nutrients to the soil to be used by the plants.
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The portion of the female reproductive tract in birds that directs the egg to the cloaca is the __________.
Answers
Answer:
overies
ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur. The fertilized egg then moves to the uterus, where the uterine lining has thickened in response to the normal hormones of the reproductive cycle
Question 1/7 The Nile River carries sediments to the ocean. Over time, the sediments are compressed as more sediments are deposited on top of them. Which type of rock will be formed?
Answers
Answer:
Sedimentary Rock
Explanation:
Sedimentary rocks are formed from pieces of sediments or other existing organic matter or rock.
The sedimentary rock formation process begins with weathering which involves the breakdown of the sediments into small fragments. The next process is erosion, where water like the Nile River carries them to other places - in this case, the Ocean.
Over time, the sediments settle and become compressed as more sediments are deposited on top of them.
This leads to the formation of Sedimentary Rocks.
How is cell differentiation different than mitosis?
Answers
Answer:Cell differentiation is the process by which cells specialize to achieve their required functions. In order for a cell to differentiate, it will express specific genes. mitosis produces cells that are identical to each other (clones).
Explanation:
Answer:
Though the options aren't presented to the question, I believe the correct answer is: Cell differentiation is different than mitosis, for during cell differentiation, it produces cells with different gene expressions. Meanwhile, during mitosis, it produces clones of the same genes.
Hope this helps! Happy Holidays!
IST-1.H Explain how the process of meiosis generates genetic diversity.
Answers
Meiosis is a process of cell division that generates haploid gametes from diploid cells. During meiosis, genetic diversity is generated in two key ways:
Crossing over: Homologous chromosomes pair up and exchange segments of DNA during prophase I of meiosis. This results in the creation of new combinations of alleles on each chromosome, as segments of DNA from one homologous chromosome are swapped with the corresponding segments of the other homologous chromosome.
Independent assortment: During metaphase I of meiosis, homologous pairs of chromosomes align independently of one another. This means that the orientation of each chromosome pair is random with respect to the other pairs. This results in the segregation of different combinations of chromosomes and alleles into the resulting haploid cells.
Together, these two mechanisms lead to the production of genetically diverse haploid cells that can combine in different ways during fertilization, resulting in a wide variety of genetically unique offspring.
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Brett touches a bottle of soda to determine if it is cold. He realizes it is very cold. He removes his hand.
Which option correctly describes how the nerve signals in the scenario were processed?
Signals detected by receptors in Brett's fingers sent a chemical message along his nerve cells to his spinal cord. In his spinal cord, the message that the soda bottle was cold was processed. This. message was sent along nerve cells to his hand, where the decision was made to move it.
Signals detected by receptors in Brett's fingers sent a chemical message along his nerve cells to his brain. In his brain, the message that the soda bottle was cold was processed. This message was sent along nerve cells to his hand, where the decision was made to move it.
Signals detected by receptors in Brett's fingers sent an electrical message along his nerve cells to his
brain. In his brain, the message that the soda bottle was cold was processed. The decision to remove his hand was then made. This message was sent along nerve cells to his hand.
Signals detected by receptors in Brett's fingers sent an electrical message along his nerve cells to his spinal cord. In his spinal cord, the message that the soda bottle was cold was processed. The
decision to remove his hand. was then made. This message was sent along nerve cells to his brain, which moved the hand
Answers
The correct answer is option 1. which defines the functioning of a somatic reflex.
The neuronal pathway from the first perception of a stimulus to the reaction, such as the movement of a limb, is known as a somatic reflex arc. Afferent, or sensory, neurons in the CNS carry information from a sensory organ to muscle cells via the fundamental pathway. The efferent, or motor, neurons then get this information.A sensory input from the environment, such as touching a cold soda bottle, is the initial step in the response arc. Then, afferent neuron transmits this sensory information. Action potentials, which are electrical impulses brought on by ions moving in and out of the neuron, are the means through which information moves through a neuron.Chemical messengers known as neurotransmitters transport the information to the next neuron through a synapse.The information may transit through an interneuron or link directly from an afferent neuron to an efferent neuron at the spinal cord. Through the neuromuscular junction, the efferent neurons transfer information to the muscle cells via neurotransmitters, resulting in muscle contraction and movement. This motion will cause the hand to be removed from the bottle of cold soda.Hence, correct answer is option 1.
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Which part of the skin is made up of elastic and fibrous tissue as well as fatty tissue?.
Answers
Dermis is part of the skin is made up of elastic and fibrous tissue as well as fatty tissue.
Dermis is a fibrous structure composed of collagen, elastic tissue, and other extracellular components like nerve endings, hair follicles. The role of the dermis is to support and protect the skin and deeper layers, also assist in thermoregulation.
Dermis is the core skin and is composed of connective tissue. It is located internally, under the epidermis. The dermis is classified as highly vascularized tissue, containing blood and lymph vessels, as well as nerves, hair follicles, and sweat glands.
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The epinephrine signaling pathway plays a role in regulating glucose homeostasis in muscle cells. The signaling pathway is activated by the binding of epinephrine to the beta-2 adrenergic receptor. A simplified model of the epinephrine signaling pathway is represented in Figure 1.
Answers
A simplified model of the epinephrine signaling pathway involves enzymes activating other enzymes.
Cells can react to signals from their surroundings thanks to signal transduction pathways. A signal is amplified in the majority of signal transduction pathways, causing most steps to result in more active components than earlier steps. For instance, signal amplification causes a liver cell to release plenty of glucose molecules after spotting just one epinephrine molecule.
Numerous locations can lead to signal amplification. For instance, a receptor can activate a series of G proteins as long as epinephrine is attached to the receptor. Each adenylyl cyclase enzyme can also convert a large number of ATP molecules into cyclic AMP molecules. The pathway's other active enzymes can also continuously catalyse processes. Contrarily, the G protein is required for the continued activation of adenylyl cyclase and only stimulates one adenylyl cyclase enzyme at a time. The cellular response's termination is just as crucial as its initiation. The several participants in the pathway must be controlled such that they are activated for a brief amount of time in order for a cell to respond only when a signal is there.
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The virus that causes rabies, and the rhinovirus that causes the common cold are both considered true pathogens; the degree of pathogenicity is determined by their ______.
Answers
The degree of pathogenicity of the virus that causes rabies and the rhinovirus that causes the common cold is determined by their virulence factors.
These factors are the characteristics of the virus that enable it to cause disease in a host organism. For example, the rabies virus has a high degree of virulence due to its ability to enter and infect the nervous system, leading to severe neurological symptoms and often death. The rhinovirus, on the other hand, has a lower degree of virulence and typically only causes mild respiratory symptoms.
Virulence factors can include things like the virus's ability to evade the immune system, its ability to attach to and enter host cells, and its ability to replicate and spread throughout the body. Some viruses may also produce toxins that contribute to their pathogenicity.
Understanding the virulence factors of a virus is important for developing effective treatments and vaccines to prevent and control the spread of infectious diseases.
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Which of the following statements reflect accurate identifications of Enterococcus species?
a. Gram-positive cocci in chains, catalase negative, esculin positive, PYR negative: Enterococcus species.
b. Gram-positive cocci in pairs, catalase negative, esculin positive, PYR positive, vancomycin intermediate, nonmotile, nonpigmented: E. gallinarum.
c. Gram-positive cocci in pairs or chains, catalase negative, black colonies on bile esculin agar, growth in 6.5% salt broth: Enterococcus species.
d. Gram-positive cocci in pairs or chains, catalase negative, esculin positive, PYR positive, vancomycin intermediate, motile, yellow pigment: E. casseliflavus.
Answers
The statement that reflects accurate identifications of Enterococcus species is "Gram-positive cocci in pairs or chains, catalase negative, black colonies on bile esculin agar, growth in 6.5% salt broth: Enterococcus species".
Explanation: Enterococcus is a type of bacteria that can be found in the intestines of animals and humans. They may cause infections, particularly in individuals with weakened immune systems, as well as urinary tract infections (UTIs), wound infections, and blood infections. Enterococcus faecalis and Enterococcus faecium are the most well-known species.
Enterococcus is a gram-positive bacteria, which means it will stain purple under a microscope using the Gram stain test. They are catalase-negative bacteria, which means they cannot break down hydrogen peroxide (H2O2) into water (H2O) and oxygen (O2).
Furthermore, Enterococcus species are esculin positive, which means they are capable of hydrolyzing esculin. Esculin is a glycoside found in the bark of some trees and shrubs. Enterococcus species are PYR-negative bacteria, which means they cannot hydrolyze the substrate PYR (L-pyrrolidonyl-β-naphthylamide).
Finally, the statement that reflects accurate identifications of Enterococcus species is "Gram-positive cocci in pairs or chains, catalase negative, black colonies on bile esculin agar, growth in 6.5% salt broth: Enterococcus species".
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A keystone organism is vital because many others depend on it for survival.
True
False
Answers
Answer:
Good works
Explanation:
Chapter 3 Questions
STUDY
Play
a
Click card to see the definition
Primary succession happens after a catastrophic event destroys a formerly occupied region and leaves no life behind.
a) True
b) False
Primary succession happens after a catastrophic event destroys a formerly occupied region and leaves no life behind.
a) True
b) False
Click again to see the term
c
Click card to see the definition
Secondary succession occurs after an event damages a community but does not wipe it out such as a forest fire.
c) True
d) False
Secondary succession occurs after an event damages a community but does not wipe it out such as a forest fire.
c) True
d) False
Click again to see the term
1/15
Created by
SeanimacTEACHER
Tags related to this set
Biological Control Of Invasive Species
The Environment
Invasive Species
Terms in this set (15)
The statement "A keystone organism is vital because many others depend on it for survival" is definitely true.
What do you mean by Keystone species?The keystone species may be defined as a species within a community that has a role out of disproportion to its abundance.
If a keystone species is removed from any community, it may result in the decline of species richness of that particular community.
Therefore, the statement "A keystone organism is vital because many others depend on it for survival" is definitely true.
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Why are enzymes considered reused ?
Answers
Enzymes serve as catalysts to many biological processes, and so they are not used up in reactions and they may be recovered and reused. However, in a laboratory setting, reactions involving enzymes can leave the enzyme unrecoverable. -G00gle
Maintaining environmental safety and infection control is the responsibility of a cytogenetic technologist, but not of a diagnostic molecular scientist.
Responses
False
True
Answers
Maintaining environmental safety and infection control is the responsibility of cytogenetic technologist, but not of diagnostic molecular scientist : False.
What is cytogenetic technologist?Cytogenetic technologists are that laboratory specialists who study normal and abnormal chromosomes in the cells and their relationship to disease and human development.
Maintaining environmental safety and infection control is the responsibility of both cytogenetic technologists and diagnostic molecular scientists, as both professions involve working with biological materials that can pose potential health hazards if not handled properly. Both professions are required to follow strict safety protocols and guidelines to prevent spread of infections and maintain safe laboratory environment.
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Give two reasons why structure is a useful characteristic in classifying organisms.Give reasons why colour, size and habitat are not usually used to classify organisms at the major grouping levels.
Answers
Organism structure provides the evolutionary history of their ancestors and also provides which structure is homologous between them. Organism changes their habitat, color, and size according to environmental conditions and time.
Why organism classification is needed?An organism's classification frequently offers helpful details about its evolutionary background and the other creatures to which it is linked.
It makes it easier to identify creatures. It discusses the interactions between various species. It facilitates understanding of organism evolution.
Therefore, organism structure is needed to study evolutionary history.
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asexual seproduction takes place throug brobling ,A - amoeba ,B- geart,C- plosmodium,D- leishmanion
Answers
How can a bicarbonate indicator be used to show respiration is taking place