set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Which one of the following salts is found in maximum amount in the human bones?

a) Calcium Phosphate

b) Magnesium Chloride

c) Calcium Carbonate

d) Sodium Chloride

Question : 2

The number of teeth that are developed twice in the lifetime of human being is

a) 20

b) 4

c) 12

d) 28

Question : 3

Which of the following are required for the formation of bones and teeth?

a) Sodium and Calcium

b) Sodium and Potassium

c) Iron and Calcium

d) Calcium and Phosphorus

Question : 4

Which one of the following is a membrane that protects the developing embryo from desiccation?

a) Chorion

b) Amnion

c) Allantois

d) Yolk sac

Question : 5

The number of bones in human skull is

a) 32

b) 28

c) 30

d) 40

Question : 6

The heart of human embryo starts beating

a) In the fourth week of its development

b) In the first week of development

c) In the third week of its development

d) In the sixth week of its development