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Bas_tet [7]
3 years ago
15

Explain why fermentation wold take over and not the krebs cycle.how long would it last?

Biology
1 answer:
AleksandrR [38]3 years ago
5 0

Answer:

Fermentation replaces the Krebs cycle when there is inadequate oxygen and lasts for a much shorter duration, which depends on the individual.

Explanation:

The best way to describe this is when someone is running. While they are exerting their maximum effort, they breathe very heavily to make up for a lack of oxygen. The muscles they are using take up more oxygen than the lungs can obtain, so the cells switch over from the more efficient Krebs Cycle as a last-ditch effort to provide the energy that individual needs.

This is a very inefficient way of producing ATP because it only yields 2 ATP per glucose molecule, as opposed to roughly 26 ATP through the Krebs Cycle.

One common misconception here is that lactic acid buildup occurs during this process, and while that is partly true, the lactic acid would suffocate the cells and lead to death if lactic acid were to build up in the way people believe.

As for how long Fermentation can occur, it depends on the fitness of the individual, as the Fermentation process would likely only last for a few seconds for an out-of-shape individual and over an hour in a long-distance runner.

It also depends on whether or not the person has trained their muscle for endurance or short bursts of strength. A sprinter cannot use Fermentation for long but a marathoner may use Fermentation for the last hour of their run.

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Which change in a limiting factor would increase the carrying capacity for american pikas in a talus field within an alpine tund
shusha [124]

Answer: B) decrease in number of rock fragments

Explanation:

Carrying capacity is the maximum size of the population of a species that an ecosystem can handle based on the availability of resources.

A limited factor is the factor that can be an abiotic or biotic agent is likely to affect the life of the living being.

American pikas are the small rodent-like mammals. These animals are short and stout. They have big, round ears and do not have tails. They have a brown and black coloration which helps them to hide behind the rocks and camouflage the predators.

Here, the decreased in rock fragments is a limiting factor which will increase the carrying capacity of American pikas. Due to lack of rock fragments, the American pikas will not be able to hide from predators and they will die. The size of the population will become by the supportive carrying capacity.

8 0
3 years ago
Match each form of energy with its description​
PolarNik [594]
The energy with the form
7 0
3 years ago
When you are on the roller coaster at Carowinds, your adrenal cells near the kidneys
kicyunya [14]

Answer:

D. Cell signalling which is released by one type of cell and acts upon a different cell

Explanation:

According to this question, adrenal cells near the kidney releases an hormone called ADRENALINE, which causes the cells of the heart to beat faster. This is an example of CELL SIGNALLING because chemical signals released by adrenal glands causes/triggers a response in the heart cells.

The chemical signal released by the adrenal cells is the ADRENALINE HORMONE, which induces a response in cells that are different from the cells of release (adrenal cells).

5 0
3 years ago
Which term describes the difference in the concentrations of a substance across a cell's membrane?
SpyIntel [72]

Correct answer: C) Concentration gradient

The process of movement of a particle in a solution from the region of higher concentration to the region of lower concentration across a membrane is called as concentration gradient.

For example: If we drop a few drop of dye in a glass of water, it will diffuse along a concentration gradient, i.e, the region where dye is found in highest concentration to the region where it is in lower concentration.

It will occur until the concentration of dye become uniform in all the direction in the glass of water.





3 0
3 years ago
Read 2 more answers
Question 12:
Ugo [173]
Hey there!

Number 3, "has more people than ever before" is correct. As there are more people, there is a greater need more resources.

Hope this helped, have a good night!
8 0
3 years ago
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