Biology Questions

Q:

Visceral muscle is another name for

A) Cardiac muscle B) Smooth muscle
C) Skeletal muscle D) None of the above
 
Answer & Explanation Answer: B) Smooth muscle

Explanation:

Visceral muscle is another name for Smooth muscle.

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2 1891
Q:

Deficiency of fluoride leads to Which one of the following health problems?

A) Tooth caries B) Mottling of tooth
C) Bending of bones D) Stiffening of joints
 
Answer & Explanation Answer: A) Tooth caries

Explanation:

Fluoride deficiency is a disorder which may cause increased dental caries due to a lack of fluoride in the diet. Dental caries or tooth decay is the breakdown of dental tissues by the acidic products released by the "bacterial fermentation of dietary carbohydrates”

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Filed Under: Biology
Exam Prep: Bank Exams

4 1891
Q:

The hormone that stimulates heart beat is

A) Thyroxine B) Gastrin
C) Glycogen D) Dopamine
 
Answer & Explanation Answer: A) Thyroxine

Explanation:
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Filed Under: Biology
Exam Prep: Bank Exams

2 1890
Q:

The process of bones increasing in width is known as

A) appositional growth B) concentric growth
C) closing of the epiphyseal plate D) long bones reaching adult length and width
 
Answer & Explanation Answer: A) appositional growth

Explanation:
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4 1886
Q:

What contributes to antigenic shift in influenza viruses?

A) a segmented genome B) different virus subtypes
C) Both A & B D) ease of virus transmission
 
Answer & Explanation Answer: A) a segmented genome

Explanation:
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3 1886
Q:

Which of the following may cause the breakdown of pyruvate into lactic acid in our muscles?

A) Lack of water B) Lack of Oxygen
C) Lack of carbon dioxide D) Lack of nitrogen  
 
Answer & Explanation Answer: B) Lack of Oxygen

Explanation:
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1 1886
Q:

A protein is synthesized in the endoplasmic reticulum bound ribosomes and it targets to the inner thylakoid space of chloroplast. How many double-layered membrane layers it has to pass to reach its destination?

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: B) 3

Explanation:

There are 3 double-layered membrane layers, which the protein has to pass to reach its destination.

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Filed Under: Biology
Exam Prep: Bank Exams

5 1884
Q:

What is the purpose of the mucus in your nose?

A) Protects lungs B) Clear air passage
C) Protects nose D) All of the above
 
Answer & Explanation Answer: A) Protects lungs

Explanation:

When you breathe in air through your nose, it contains lots of tiny things, like dust, dirt, germs, and pollen.

The air enters our body through the nose. However, before it enters the lungs, it must be heated and purified. Many dust particles that enter along with the air are removed in the nose by mucus and thus it protects lungs.

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Filed Under: Biology
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3 1880