Practice Biology - general science mcq Online Quiz (set-2) For All Competitive Exams

Q-1)   Which one of the following organs in the human body is most affected due to shortage of oxygen?

(a) Skin

(b) Intestine

(c) Kidney

(d) Brain

Q-2)   The normal temperature of the human body is

(a) 98°C

(b) 367 K

(c) 37°C

(d) None of these

Q-3)   The temperature of a normal human body is

(a) 98° F

(b) 98.8° F

(c) 98.4° F

(d) None of these

Q-4)   Which is an atrocious animal?

(a) Whale

(b) Otter

(c) Penguin

(d) Tortoise

Q-5)   In which of the following reptiles four chambered heart is present ?

(a) Snake

(b) Lizard

(c) Scorpion

(d) Crocodile

Q-6)   Which part of human brain is concerned with the regulation of body temperature?

(a) Cerebrum

(b) Cerebellum

(c) Hypothalamus

(d) Medulla Oblongata

Q-7)   Which one of the following glands produces insulin in human body?

(a) Pancreas

(b) Liver

(c) Spleen

(d) Pituitary

Q-8)   A surge of which hormone stimulates ovulation in human females?

(a) Estrogen

(b) Luteinizing hormone

(c) Follicle stimulating hormone

(d) Progesterone

Q-9)   Biological catalysts in living organisms are known as

(a) vitamins

(b) hormones

(c) steroids

(d) enzymes

Q-10)   The hormone reducing transpiration rate by inducing stomatal closure is

(a) ethylene

(b) cytokinin

(c) ABA

(d) auxin

Q-11)   In human testosterone is produced by

(a) leydig cell

(b) tunica albuginea

(c) seminiferous tubule

(d) sertoli cell

Q-12)   The muscles in stomach are.

(a) involuntary

(b) voluntary

(c) Cardior

(d) None of the above

Q-13)   Which one among the following is the hardest part of our body ?

(a) Thumb nails

(b) Skull bones of head

(c) Enamel of teeth

(d) Spinal vertebra

Q-14)   Nervous tissue is not found in

(a) spinal cord

(b) brain

(c) tendons

(d) nerves

Q-15)   The muscles in stomach are.

(a) involuntary

(b) voluntary

(c) Cardior

(d) None of the above

Q-16)   Which of the following statement(s) is/are correct about the ground tissue system?

1. All tissues except the epidermis and vascular bundles constitute the ground tissue.
2. It consists of the xylem and phloem.
3. In leaves, it consists of thin-walled chloroplast-containing cells called mesophyll.

(a) Both (i) and (iii)

(b) Only (i)

(c) Both (ii) and (iii)

(d) All of these

Q-17)   Meristematic tissues are found in

(a) both roots and stems

(b) only stems of the plants

(c) in all growing tips of the plant body

(d) only roots of the plants

Q-18)   Root hairs develop from

(a) region of elongation

(b) region of maturation

(c) region of meristematic activity

(d) root cap

Q-19)   ECG records

(a) potential difference

(b) rate of heart beat

(c) ventricular concentration

(d) volume of blood pumped

Q-20)   Match List-I with List-II and select the correct answer using the code given below the lists.

List-I	List-II
A. Fruit	1. Ovule
B. Ovule	2. Leaf
C. Wood	3. Stem
D. Starch	4. Ovary

Select the correct answer using the codes given below the lists: A B C D

(a) A-4; B-1; C-3; D-2

(b) A-2; B-1; C-3; D- 4

(c) A-2; B-3; C-1; D-4

(d) A-4; B-3; C-1; D-2