CBSE Std 8 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1 Thyroxin maintains -

(A) Vitamin and hormone utilization	(B)Protein fat and carbohydrate utilization
(C)Vitamins and mineral utilization.	(D)Utilization of all nutrients.

Question-2 Menstrual cycles comes to an end at the age of

(A) 50 – 60 years	(B) 45 – 50 years
(C)35 – 45 years	(D)60 – 70 years.

Question-3 Adolescent age is between the years -

(A) 11 to 18	(B)11 to 25
(C)10 to 15	(D) 8 to 20

Question-4 Human male produces

(A) One type of sperm.	(B) Two types of sperms.
(C)Three types of sperms.	(D)Four types of sperms.

Question-5 Drastic changes which develop in a tadpole converting, it into an adult frog is known as

(A) Mounting	(B) Ecdysis
(C)Metabolism	(D)Metamorphosis

Question-6 __________ and __________ are endocrine glands.

(A) Pituitary glands and tear glands	(B)Tear glands and Liver
(C)Liver and Thyroid glands	(D)Pituitary glands and Thyroid glands.

Question-7 __________ marks the end of reproductive phase in the life of human female.

(A) Menstruation	(B)Menarche
(C)Menopause	(D)Ovulation

Question-8 Hormone thyroxin needs __________ for its production.

(A) Iron	(B)Calcium
(C) Iodine	(D)Phosphorus

Question-9 High blood glucose level may be due to

(A) Low insulin production	(B)High insulin production
(C)High thyroxin production	(D)High Oestrogen production

Question-10 The function of Insulin is to -

(A) Convert excess blood glucose to its stored form, glycogen.	(B) Increase glycogen to glucose.
(C)Increase glucose in blood.	(D)Convert glucose to sugar

Click here to see your answersheet and detailed track records.

Std 8

CBSE

Practice in Related Chapters
Reproduction in Animals
Microorganisms: Friend and Foe
Reaching the Age of Adolescence
Cell - Structure and Functions
Conservation of Plants and Animals
Crop Production & Management