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Question-1 What are the two different types of Sex chromosomes in Human beings?

(A) X and X	(B)Y and Y
(C)X and Y	(D)X and Z.

Question-2 Gigantism and dwarfism are hormone disorders related with the endocrine gland/glands -

(A) Pituitary and thyroid glands.	(B)Pituitary gland alone.
(C)Thyroid gland alone	(D)Pancreas and adrenal glands.

Question-3 Temperature is a determining factor of sex in

(A) Fishes	(B)Reptiles
(C)Birds	(D)Mammals

Question-4 Hormones produce their effect on -

(A) Heart and brain	(B) Whole body
(C)Target organs/sites	(D)Endocrine glands.

Question-5 Sebaceous glands produce -

(A) Sweat	(B) Milk
(C)Hormone	(D) Oil

Question-6 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-7 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-8 Hormones are required in __________ quantities.

(A) Small quantities	(B)Large quantities
(C)Different quantities	(D)Any quantities

Question-9 __________ 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-10 How are the last pair of chromosome different in their function in Human beings?

(A) They give us strength.	(B) They influence our behaviour
(C)They gives us long life.	(D)They influence/ determine our sex.

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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