Answer:
I think the answer is B
Explanation:
Investigators are studying a signaling pathway in which an RTK activates the monomeric GTPase Ras.
a. True
b. False
When cells go through division in the early stages of life, they are known of stem cells. How do
we end up with all the different types of cells?
Answer:
these differentiate as a result of signaling mechanisms. ... The daughter cells divides and after each division it becomes more specialized. When it reaches a mature cell type downstream (for example, becomes a red blood cell) it will no longer divide.
Answer:
stem cells are called upon to generate a particular type of cell, they undergo asymmetric cell division.
Explanation:
with asymmetric division, each of the two resulting daughter cells has it's own unique life course
Write about Cryptogams and Phanerogams
Explanation:
Cryptogams: Thallophytes, Bryophytes and Pteridophytes are called Cryptogams.Cryptogamae means having hidden reproductive organs.The reproductive organs in these plants are inconspicuous. Their naked embryos are called spores.Phanerogams: Gymnosperms and Angiosperms are Phanerogams.Phanerogams are the plants with well differentiated reproductive tissues. The seeds enclose embryo which is suspended in the stored food.-TheUnknownScientist 72
How does galaxy composition typically relate to the age of the stars in the galaxy? (1 point)
Star aging emits gas and dust, so galaxies with the youngest stars typically have the lowest proportions of dust and gas.
Star formation and the presence of young stars is common across galaxies, regardless of the proportions of dust and gas present.
Stars form from dust and gas, so galaxies with younger stars typically consist of higher proportions of dust and gas than other galaxies.
O Star formation consumes dust and gas, so galaxies where stars are oldest typically consist of higher proportions of dust and gas than other galaxies.
H
Galaxy composition typically relate to the age of the stars in the galaxy
through Stars being able to form from dust and gas, so galaxies with
younger stars typically consist of higher proportions of dust and gas than
other galaxies.
Components of a StarDustGasThe age of stars are usually determined through the amount of gas and dust
present in them. Stars burn gas to emit light and the younger ones have
more proportion of gas present than the older ones. The older ones have
less proportions due to more gas being burned over time.
The stated facts therefore makes option C the most appropriate.
Read more about Galaxy here https://brainly.in/question/1087589
Answer:
C is right
Explanation:
This instrument has made it possible for scientists to observe certain objects and processes that would otherwise never have been seen with the naked eye or a common magnifying glass, because they are more stable and can be built with greater magnifying power, so that smaller structures can be seen and studied. It is used in a wide range of scientific fields, and has contributed to major discoveries in biology, medicine and materials research. What is the instrument?
Answer:
The modern field of biomaterials combines medicine, biology, physics, and chemistry, and more recent influences from tissue engineering and materials science.
Explanation:
The answer is microscope.
which structure can be found in both eukaryotic and prokaryotic cells?
Answer:
cell wall and plasma membrane are found in both bacteria(prokaryotic) and plant (eyokaryotic).i think it was helpful
which mutations are beneficial? which might not make a difference? which ones are most harmful?
Answer:
Mutations are random Mutations can be beneficial, neutral, or harmful for the organism, but mutations do not “try” to supply what the organism “needs.”
Explanation:
Some midwestern farmland in the United States is covered by
Answer:
dominant crops
Explanation:
a scientist finds an organism that has a single cell without a nucleus this organism was found in pond water in which kingdom does it belong to? explain what is the answer if you find the answer i will give you 100,000 dollars
Answer:
Protista
Explanation:
In biology, there are said to be six different kingdoms that an organism can be classified under. They include Animalia, Plantae, Fungi, Protista, Archaea/Archaebacteria, and Bacteria/Eubacteria.
With this in mind, you say that a unicellular (single-celled) organism without a nucleus was found in pond water. This would point to the Protista kingdom, which are also known as protists. These organisms are single-celled beings with no big nucleus that are typically found in environments like ponds.
Hope this helped! I will take my 100,000 dollars via wire transfer (or just give this answer branliest)
There is an error in the above model.
(a) What is this a model of? (2pts)
(b) Explain how you would change the model to make it correct? (2pts)
ATP hydrolysis is the lysis of the molecule mediated by water. It releases a phosphate group and energy. It is a reversible reaction. (a) Reversible ATP hydrolysis. (b) added energy on the left and released energy on the right.
------------------------
ATP is a significant molecule involved in many of the cellular metabolic routes. These metabolic processes can either form it or break it.
ATP provides energy to many different functions in the organism.
ATP means adenosine tri-phosphate. It is composed of adenosine (an adenine plus a ribose), and three phosphate groups.
Note: you can also find adenosine Diphosphate (two phosphates) and adenosine monophosphate (one phosphate).
Oxygens from the phosphate groups only have a single bond to phosphate (there are no hydrogen bonds).
These single bonds, known as phophoanhydrid bonds, have a negative charge and tend to repel each other, making the molecule unstable.
So phosphate groups repel each other, and a considerable amount of energy is applied to keep them united. So phophoanhydrid bonds are high energetic bonds.
The forces that keep the phosphate groups together accumulate potential energy.
If these bonds are broken, part of this potential energy would be released.
When talking about breaking the molecule, we are referring to ATP hydrolysis. And the released energy is used in different cellular processes that require energy.
ATP Hydrolysis is the molecule lysis mediated by a water molecule.
ATP + H₂O ⇄ ADP + Pi + Energy
Pi is the released inorganic phosphate group.
This is a reversible reaction, meaning that the ADP can go back to ATP.
ADP + Pi + Energy ⇄ ATP + H₂O
(a) What is this a model of?
This model represents the reversible ATP hydrolysis.
In the superior part of the image, we can see an ATP molecule composed of adenine, ribose, and three phosphate groups. The yellow star behind represents the accumulated energy.
When ATP hydrolysis, it loses a phosphate group and part of the energy that was keeping this group in the molecule.
An ADP is composed after hydrolysis. We can see this molecule in the inferior area of the image.
ADP molecule is composed of adenine, ribose, and two phosphate groups.
Because hydrolysis is a reversible process, by adding a new phosphate inorganic group and energy, we can get a new ATP.
(b) Explain how you would change the model to make it correct?
What is wrong with this model is that instead of showing released energy during the hydrolysis process, it shows energy added to the reaction. In the same way, instead of showing added energy to the reversible reaction, it shows released energy.
Added energy and released energy must be changed.
Added energy should be on the leftReleased energy should be on the right---------------------------------
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By what method do bivalves gain food for nutrition?
They absorb the nutrients they need.
They are filter feeders.
They use their radula to scrape objects to use for food.
Answer:
They absorb the nutrients they need.
Explanation:
Answer:
They are filter feeders.
Explanation:
i took the test
PLEASE HELP :(
ANSWER ALL 14 QUESTIONS WILL GIVE BRAINLIEST!
Chemical Energy and Food
1. Cellular respiration begins with a pathway called_______.
2. Is the following sentence true or false? Glycolysis releases less energy than aerobic respiration.
Overview of Cellular Respiration
3. Explain cellular respiration in your own words.
4. What is the equation for cellular respiration, using chemical formulas?
Fermentation
5. What is fermentation?
6. Because fermentation does not require oxygen, it is said to be____________.
7. What are the two main types of fermentation?
a.
b.
8. Explain the process of alcoholic fermentation.
9. During rapid exercise, how do your muscle cells produce ATP?
Energy and Exercise
10. When a runner needs quick energy for a short race, what source can supply enough ATP for about 90 seconds?
11. Why does a sprinter have an oxygen debt to repay after the race is over?
Comparing Photosynthesis and Cellular Respiration
12. If photosynthesis is the process that deposits energy in a savings account, then
what is cellular respiration?
13. How are photosynthesis and cellular respiration opposite in terms of carbon
dioxide?
14. How are photosynthesis and cellular respiration opposite in terms of oxygen?
produces less energy than aerobic respiration.
Answer:
1. Glycolysis
2.false (not sure)
3. Cellular respiration is the process through which cells convert sugars into energy.
4 C6H12O6 + 6O2 → 6CO2 + 6H20 + energy (Glucose + Oxygen yields Carbon Dioxide + Water + Energy)
5. Fermentation is a chemical process by which carbohydrates, such as starch and glucose, are broken down anaerobically.
6 anaerobic
7 alcoholic and lactic acid.
8 Alcoholic fermentation is a biotechnological process accomplished by yeast, some kinds of bacteria, or a few other microorganisms to convert sugars into ethyl alcohol and carbon dioxide. ... Alcoholic fermentation begins with the breakdown of sugars by yeasts to form pyruvate molecules, which is also known as glycolysis.
9 In this reaction, a phosphate group (in red) is transferred from phosphocreatine to ADP to form ATP very rapidly, allowing muscle contraction to continue for about 10 seconds. When phosphocreatine is depleted, the muscles must turn to metabolism of fuel molecules to produce more ATP to power physical activity.
10 At this point, the runners' muscle cells are producing most of their ATP by lactic acid fermentation, which can usually supply enough ATP to last about 90 seconds.
12 After that, the body begins to break down other stored molecules, including fats, for energy. If photosynthesis is the process that "deposits" energy in a "savings account," then what is cellular respiration? It is the process that "withdraws" energy.
13 Cellular Respiration and Photosynthesis are almost opposite processes because photosynthesis removes carbon dioxide from the atmosphere while cellular respiration puts back carbon dioxide. Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2).
Explanation:
sorry sa 11 at 14 dq nasagutan
If the economy is too big, does it have a negative or positve effect on the environment?
Economic growth means an increase in real output (real GDP). ... The environmental impact of economic growth includes the increased consumption of non-renewable resources, higher levels of pollution, global warming and the potential loss of environmental habitats.
Lysozyme is an enzyme found in animals that helps prevent bacterial infections in eyes. Which statement best explains how lysozyme functions?
It acts as a lubricant to wash bacteria out of the eye.
It acts as a lubricant to wash bacteria out of the eye.
It acts as a catalyst to break down harmful bacteria.
It acts as a catalyst to break down harmful bacteria.
It acts as a protective layer to prevent bacteria from entering the eye.
It acts as a protective layer to prevent bacteria from entering the eye.
It acts as a trap to catch bacteria and restrict their movement.
The statement that best explains how lysozyme functions is as follows: It acts as a catalyst to break down harmful bacteria.
LYSOZYME:Lysozyme is a digestive enzyme found in living cells. An enzyme is a biological catalyst that helps regulate the rate of biochemical reactions.
As a digestive enzyme, lysozyme will carry out the responsibility of breaking down molecules.
According to this question, lysozyme is an enzyme found in animals that helps prevent bacterial infections in eyes. This means that lysozyme will act as a catalyst to break down harmful bacteria.
Learn more about lysozyme at: https://brainly.com/question/5263737?referrer=searchResults
Answer:
It acts as a catalyst to break down harmful bacteria.
Explanation:
The bacterial cell was is made up of murein also called peptidoglycan. The active site of the enzyme lysozyme binds with the molecule of peptidoglycan attacking and breaking it. It degenerates the bacterial cell wall eventually killing the bacteria.Lysozyme mostly, works on the gram-positive bacteria as the peptidoglycan layer is present on the outer side of the cell wall unlike gram-negative where it is present in the inner side of the cell wall. Thus, acting and functioning as a catalyst that breaks down walls of bacteria, enhances innate immunity, and protects from infection.For more information:
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uh…did i do this right?
Maybe
[tex] \red{ \rule{500pt}{1000pt}}[/tex]
This is just ruler command 500pt and 1000pt for long rule
what are the functions of the cells in the chloroplast
Answer:
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth. ... Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.
Explanation:
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth. ... Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.
During the citric acid cycle, some carbon atoms are released.
What are these carbon atoms released as?
A. FADH2
B. Acetyl-CoA
C. CO2
D. ATP
Answer:
B. Acetyl-CoA
Explanation:
Acetyl CoA are released as carbon dioxide, one of the major products of cellular respiration, through a series of enzymatic reactions.
which is the primary advantage to sexual reproduction over asexual reproduction?
Answer:
Sexual reproduction is typically advantageous over asexual reproduction because the environment is constantly changing. Sexual reproduction allows new combinations of genes to form. This greater genetic diversity increases the phenotypic variation: that is, it increases the physical variety of the organisms.
Explanation:
atp comes from which biochemical system in the muscle?
Answer:
Phosphagen system. Glycogen-lactic acid system. Aerobic respiration.
Explanation:
Please answer my question who loves Paddington Bear
Answer:I love paddington bear
Explanation:
HELP I DONT UNDERSTAND THIS
What is the most likely explanation of the data shown below?
A 3 column table with 6 rows. Column 1 is labeled Year with entries 0, 1, 2, 3, 4, 5. Column 2 is labeled Dark moths with entries 50 percent, 59 percent, 68 percent, 80 percent, 95 percent, 100 percent. Column 3 is labeled Light moths with entries 50 percent 41 percent, 32 percent, 20 percent, 5 percent, 0 percent.
a.
There has been a drought in the area that is affecting all life forms.
b.
The population of natural predators of the moths has gotten smaller.
c.
The moths are living in an environment with light trees.
d.
The moths are living in an environment with dark trees.
Answer:
The correct answer is D. The moths are living in an environment with dark trees.
Explanation:
In general, the data shows the population of light moths increases over time, while the population of light moths decreases to the point it disappeared. This would likely occur if there was an environmental change that allowed dark moths to have survival and reproductive advantage over light moths. This includes if the trees are dark because in this scenario dark moths have a better chance to avoid predators and reproduce, while light moths would have a lower chance to survive because predators can find them easily and this leads to the decrease in light moths population shown in the chart.
Most of the food and waste materials that move into and out of a cell pass through
A.receptor proteins.
c. enzymes.
b. marker proteins.
d. channel proteins.
Which of the conditions below is not required to form coal? A. minerals for cementation B. compaction C. swamp area with lots of plants D. little decomposition of the organic matter
Answer:
The answer is A.
Explanation:
I don't really know for sure if im right but i think that is it because we learn about things like that in science but the answer is not c
The scientist was the first identify cells and name them
Answer: Robert Hokke.
Explanation: Robert Hokke in 1665, the cell has a rich and interesting history that has ultimately given way to many of today's scientific advancements.
Hope this answer will help you.
During transcription, a strand of mRNA is made based on the DNA template in the _______________.
help!!!!
Answer:
During transcription, a strand of mRNA is made based on the DNA template in the nucleus.
Explanation:
Hope this helps.
How would the decimal point move to solve the equation 124 ÷ 10 to the power of 1?
Which of these events is a likely result of chemical water pollution?
A. Algae are killed by solvents that have run off into a pond.
B. Rainbow trout disappear from a stream because of high water
temperatures.
C. Fish die from lack of oxygen due to an algal bloom.
D. Sediment particles floating in water clog the gills of fish.
What’s the correct answer???
B is not the correct answer
Answer:D
Explanation: If it were A it would have to be C and vice versa so definitly D
Answer: A. Algae are killed by solvents that have run off into a pond.
Explanation: I just took the test
explain what a species is and how resources lead to species biodiversity.
Species are organisms which have similar characteristics and are capable
of interbreeding. A common example is we human beings.
Resources leads to species biodiversity as a result of organisms moving
from one place to another in search of food for its survival. The availability
of resources will lead to an increase in reproduction and species
biodiversity as more organisms will be present in the area.
Scarcity of resources on the other hand results to lower species biodiversity
and decreased reproduction rate.
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it was raining during lunch and when you entered the building you slipped and fell. What is the reason for this?
People who have Tay-Sachs disease cannot metabolize some lipids effectively. Tay-Sachs is a recessive disorder. A student used a Punnett Square to determine the probability of offspring inheriting the disease. The results from a Punnett Square are 25% TT, 50% Tt, and 25% tt.
Answer:
dx
Explanation:
vv