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ser-zykov [4K]
1 year ago
12

The relationship between the insect hormones ecdysteroid and PTTH is an example of ________. A. an interaction of the endocrine

and nervous systems B. competitive inhibition of a hormone receptor C. how polypeptide-derived hormones have more widespread effects than steroid hormones D. homeostasis maintained by antagonistic hormones
Biology
1 answer:
Paraphin [41]1 year ago
7 0

The correct example about the relationship between the insect hormones ecdysteroid and PTTH is interaction of the endocrine and nervous system. Hence, Option A is correct.

ENDOCRINE SYSTEM:

It is a complex system which is under hormonal control. Hormones are released by the glands and it cordinates body functions from metabolism to growth and development.

NERVOUS SYSTEM:

It is a complex system consisting of organised group of cells called neurons that carry messages from brain and spinal cord to other various body parts.

As PTTH (prothoracicotropic hormone)  stimulates prothoracic gland of an insect that triggers the release of ecdysone hormone for the stimulation there should be an neuroendocrine mechanism.                                      Thus, Option A is correct.

Learn more about hormonal interations here:

brainly.com/question/1218436

#SPJ4

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From the full moon until the third quarter,
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Describe how proteins synthesized in a cell are packaged, modified, and exported out of the cell. Be sure to include the contrib
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3 years ago
Steroid hormones bind to receptors in the nucleus of their target cells. cannot diffuse through cell membranes. remain in circul
goldfiish [28.3K]

Answer:

The correct answer is - bind to receptors in the nucleus of the target cells.

Explanation:

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The steroid hormones do not bind to the plasma membrane of the target cell but binds to the receptors present on the nucleus of the cell. These cells pass through the cell and reach the nucleus and bind to it or gene to produce proteins for the biological process.

Thus, the correct answer is - bind to receptors in the nucleus of the target cells.

6 0
3 years ago
All of the following are macromolecules except:
Harman [31]

Answer:

The correct answer is c. Fatty acids

Explanation:

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The monomeric unit of polysaccharides is mainly glucose, of protein is amino acids, of nucleic acid is nucleotides and the monomeric unit of lipid is fatty acids. Ribosomes are macromolecules because it is made up of RNA  and proteins.

So fatty acid is a monomer which joins together to form large macromolecules like lipids. Fatty acids are made up of a hydrocarbon chain which have one attached COOH group at the terminal position.

Therefore the correct answer is c. Fatty acids.

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3 years ago
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lisov135 [29]

Answer:

amino acids are the building blocks. a large proportion of our cells, muscles and tissue is made up of amino acids, meaning they carry out many important bodily functions, such as giving cells their structure.

Explanation:

brainliest will be appreciated

3 0
3 years ago
Read 2 more answers
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