Biology Questions

Q:

Banana freckle is a plant disease. It is caused by a

A) Virus B) Insect
C) Fungus D) Bacteria
 
Answer & Explanation Answer: C) Fungus

Explanation:
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Q:

In mammals, an important role of excretion is played by________

A) Large intestine B) Kidneys
C) Lungs D) Liver
 
Answer & Explanation Answer: B) Kidneys

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Q:

Deficiency of which of the following causes non-clotting of blood?

A) Vitamin C B) Vitamin K
C) Vitamin E D) Vitamin B12
 
Answer & Explanation Answer: B) Vitamin K

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Q:

Which lobe of human brain is associated with hearing?

A) Frontal lobe B) Parietal lobe
C) Temporal lobe D) Occipital lobe
 
Answer & Explanation Answer: C) Temporal lobe

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Q:

Through photosynthesis at least a half of the total carbon dioxide fixation on earth is carried out by?

A) Pteridophytes B) Bryophytes
C) Algae D) Gymnosperms
 
Answer & Explanation Answer: C) Algae

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Q:

Which one of the following elements is involved in the control of water content of the blood?

A) Potassium B) Lithium
C) Rubidium D) Caesium
 
Answer & Explanation Answer: A) Potassium

Explanation:

Aldosterone is a key steroid hormone critical for maintaining salt and water balance. It regulates the concentration of minerals, like sodium and potassium, in the fluid outside your cells. When your sodium levels drop, or potassium levels rise, your body signals your adrenal glands to release aldosterone into your blood. Aldosterone signals your kidneys to reabsorb sodium into the blood, and acts on your sweat glands to reduce sodium loss through sweat.

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Q:

All respiratory equipment must be approved byl  

A) RPSEC B) OSHA
C) NIOSH D) CDC
 
Answer & Explanation Answer: C) NIOSH

Explanation:

The National Institute for Occupational Safety and Health (NIOSH) will approve all respiratory equipment.

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Q:

The heart is classified as a(n)_____.

A) organ B) system
C) cell D) tissue
 
Answer & Explanation Answer: A) organ

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