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Aneli [31]
3 years ago
10

Whether a drug is classified as a stimulant or a depressant depends upon its effect on _____________________.

Biology
2 answers:
yKpoI14uk [10]3 years ago
6 0

Answer:

In the brain

Explanation:

These types of drugs work in the brain, more precisely in the central nervous system (CNS) through the control of neurotransmitters ("messenger-like" chemicals of the brain).

Depressants act by decreasing brain activity, while stimulants accelerate brain activity, both by regulating the activity of neurotransmitters(increasing or decreasing).

Illusion [34]3 years ago
4 0
Its effects on the brain
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Answer:

d. ATP;  Fructose-2,6-bisphosphate

Explanation:

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Phosphofructokinase-1 activity is allosterically regulated. Its activity is increased whenever the cell's ATP supply is depleted or when its breakdown products, ADP and AMP accuulates in he cell. However, it is inhibited when the cell is amply supplied with ATP.

The activity of phosphofructokinase-1 is restored by fructose-2,6-bisphosphate, its most potent activator.

From the given options:

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b. AMP :::: Fru-2,6-P2  is wrong because AMP increases its activity same as fructose-2,6-bisphosphate

c. ATP :::: citrate  is wrong because both citrate and ATP are inhibitors

d. ATP :::: Fru-2,6-P2  is correct as explained above

e. All of these is wrong because of the other wrong options above.

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