Which of the following is required for nerve impulse conduction and is found in

Question

Which of the following is required for nerve impulse conduction and is found in foods such as bananas, avocados, apricots, and potatoes?

Question 26 options:

A)

Sodium

B)

Copper

C)

Chromium

D)

Potassium

A severe deficiency of vitamin A may result in:

Question 29 options:

A)

scurvy.

B)

Night blindness

C)

insufficient blood clotting.

D)

microcytic anemia

In _____, too much adrenocorticotropic hormone is produced.

Question 45 options:

A)

acromegaly

B)

cretinism

C)

Cushing's syndrome

D)

diabetes mellitus

Physical reactions to a stressor include:

Question 57 options:

A)

decreased blood sugar.

B)

decreased blood pressure.

C)

increased heart rate.

D)

increased urinary output.

A)

Sodium

B)

Copper

C)

Chromium

D)

Potassium

Explanation / Answer

Solution. 26
The correct option is option D - Potassium, which is present in high quantities in the mentioned foods. It works in tandem with sodium ( found in common salt) to generate the required action potential for nerve impulses to occur.

Solution 29:
The correct option is option B - Night blindness. Vitamin A deficiency leads to the cornea to become very dry, leading to clouding of the front of the eye. Scurvy occurs when there is a lack of vitamin C. Blood doesnt clot when there is insufficient vitamin K. Iron deficiency is the most common cause of microcytic anemia.

Solution 45:
The correct option is option C - Cushing's syndrome, which is characterised by increased secretion of adrenocorticotropic hormone (ACTH) from the anterior pituitary.
Acromegaly is due to the overproduction of growth hormone
Cretinism is stunted growth and development as a result of maternal hypothyroidism.
Diabetes mellitus is a condition when the body cannot produce sufficient insulin to absorb blood sugar.

Solution 57:
The correct answer is option C - Increased heart rate. This is caused due to release of hormone adrenaline ( the fight-or-flight hormone) This in turn increases the blood pressure. During stress, blood sugar levels increase, in anticipation of the fight-or-flight.
Increased urinary output s usually a sign of diabetes

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