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3 years ago

HELP PLEASE!!!

Biology

1 answer:

kobusy [5.1K]3 years ago

4 0

Answer:

Option (D).

Explanation:

Steroid hormones are derived from lipids. Testosterone and estrogen are the steroid hormones. These hormones can directly diffuse into the plasma membrane.

Steroid hormones after diffusing into the cell, binds with its receptor present in the cytoplasm. Hormone with its receptor enters inside the nucleus and results in the gene transcription.

Thus, the correct answer is option (D).

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3 years ago

Cell respiration begins with

irinina [24]

Answer:

Cell respiration begins with Glycolysis .

Explanation:

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3 years ago

What is a scientific hypothesis? In what two ways can a hypothesis be tested?

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3 years ago

Read 2 more answers

Who uses the oxygen plants release during photosynthesis?

AlladinOne [14]

Answer:

During photosynthesis the oxygen is released into the atmosphere through

All photosynthetic eukaryotic cells contain chloroplasts that use the radiant energy of sunlight to convert carbon dioxide and water into carbohydrates. As a byproduct of photosynthesis, oxygen gas is also released into the atmosphere through tiny openings in the leaves called stomata.

Explanation:

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2 years ago

Carbon dioxide (CO2) combines with a five-carbon compoundIn one to three sentences, describe what happens during the reduction s

alexandr1967 [171]

We are well aware that there are two stages of photosynthesis:

Light dependent reactions
Light independent reactions/ Calvin cycle/ dark reactions.

Calvin cycle or light-independent reactions:

This comprise the process during which carbon dioxide enters into the leaves of plants and passes through series of steps to form sugar or food. This process depends on the supply of ATP, (the ATP that is formed previously during light dependent reactions).

Now there are three stages of Calvin cycle:

1) carbon fixation
2) reduction
3) regeneration

During the process of carbon fixation CO2 combines with a 5-carbon compound called RuBP or ribulose-1,5-bisphosphate which results in the synthesis of a 6-carbon compound that splits up in to 2 three carbon compounds called phosphoglyceric acid (3-PGA).

Here out focus will be the process of Reduction.

Reduction is the second stage of Calvin cycle during which phosphoglyceric acid (3-PGA) is converted to glyceraldehyde-3-phosphate (G3P) that is a sugar. During the process of reduction, energy in the form of ATP and NADPH are used for the conversion of 3-PGA to G3P. As 3-PGA is reduced to G3P, therefore this process is known as reduction.

After reduction, a series of reactions occur that lead to the synthesis of glucose but since focus of our question was reduction, so you can see more details of the process in attached figure.

Hope it helps!

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3 years ago