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blagie [28]
3 years ago
9

What was the main function of the protocell’s fatty acid membrane? A. To allow sulfur dioxide to enter into the cell. B. To allo

w the cells to communicate with each other. C. To allow chemical compounds to enter into the cell.
Biology
1 answer:
Digiron [165]3 years ago
3 0

Answer:

A. To enter sulfur dioxide to enter into the cell

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Pyruvate kinase catalyzes the transfer of a phosphoryl group from phosphoenolpyruvate to ADP in the last step of glycolysis, for
luda_lava [24]

Answer:

By inhibiting pyruvate kinase in the liver isoenzyme, the muscle will initiate the lactic acid fermentation process that will provide NAD to allow glycolysis

3 0
3 years ago
The pattern of transcription for a pair of identical twins (Tweedledee and Tweedledum) is very similar at the age of 10. However
aivan3 [116]

Answer:

Explanation:

My best bet is DNA methylation at the site of Tweedledum's leptin gene or Histone Acetylation at the site of Tweedledee's gene.

B/c DNA methylation is a process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When located in a gene promoter, DNA methylation typically acts to repress gene transcription. So this is probably repressing Tweedledum's leptin gene trancription which is not happening in Tweedledee.

Additionally, Histone Acetylation at site of Tweedledee's gene increases her trancription b/c Histone acetylation causes DNA to be more accessible and leads to more transcription factors being able to reach the DNA. Thus, acetylation of histones is known to increase the expression of genes through transcription activation.

7 0
3 years ago
Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogou
Liono4ka [1.6K]

Increasing the number of stomata per unit surface area of a leaf when atmospheric carbon dioxide levels decline is most analogous to a human

B. putting more red blood cells into circulation when atmospheric oxygen levels decline.

<h3>What are stomata?</h3>

The stomata are apertures in the epidermis, each bounded by two guard cells. There are small openings on the lower surface of the leaves. These pores are called stomata. Loss of water from the stomata creates an upward pull, that is suction pull, which helps in the absorption of water from the roots. That is helpful for the transpiration process. They help in exchange for gases. Any of the tiny pores or openings in the epidermis of leaves and young stems are referred to as a stomate, sometimes known as a stoma, the plural of which is stoma or stomas. On the underside of the leaves, stomata tend to be more numerous. They enable the exchange of gases between the atmosphere outside and the leaf's branching network of interconnected air canals.

To learn more about  stomata, Visit;

brainly.com/question/28212270

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8 0
2 years ago
Which of the following is TRUE?
Umnica [9.8K]

Answer:

a. Glucagon is released by the beta cells of the pancreatic islets of Langerhans.

Explanation:

When the body is fasting, the pancreas releases glucagon so that your body can produce glucose. Glucagon is a protein hormone made and secreted by alpha cells from pancreatic islets (or islets of Langerhans).

The islets of Langerhans are a special group of cells in the pancreas that produce not only glucagon, but also insulin. These substances act as important regulators of sugar metabolism.

3 0
3 years ago
List the monomers and polymers of carbohydrates, lipids, proteins, and nucleic acids.
Kisachek [45]

Answer:

monomer of carbohydrates glucose,sucrose,fructose

polymer of carbohydrates starch,cellulose,glycogen

monomer of protein amino acids

polymer of protein polypeptides

monomer of nucleic acid nucleotides

polymer of nucleic acid DNA

polymer of lipids triglycerides

monomer of lipids 3 fatty acids and glycerol

4 0
3 years ago
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