Science MCQ part 1

1. Which of the following is a plant hormone ?

(a) Insulin

(b) Thyroxin

(c) Oestrogen

(d) Cytokinin

Ans. (d) Cytokinin

2. The gap between two neurons is called a

(a) dendrite

(c) axon

(b) synapse

(d) impulse

Ans. (b) synapse

3. The brain is responsible for

(a) thinking

(b) regulating the heart beat

(c) balancing the body

 (d) all of the above

Ans. (d) all of the above

4. The kidneys in human beings are a part of the system for

(a) nutrition

(b) respiration

(c) excretion

(d) transportation

Ans. (c) excretion

5. The xylem in plants are responsible for

(a) transport of water

(b) transport of food

(c) transport of amino acids

(d) transport of oxygen

Ans. (a) transport of water

6. The autotrophic mode of nutrition requires

(a) carbon dioxide and water

(b) chlorophyll

(c) sunlight

(d) all of the above

Ans. (d) all of the above

7. The breakdown of pyruvate to give carbon dioxide, water and energy takes place in

(a) cytoplasm

(b) mitochondria

(c) chloroplast

(d) nucleus

Ans. (b) mitochondria

8. Asexual reproduction takes place through budding in

(a) Amoeba

(b) Yeast

(c) Plasmodium

(d) Leishmania

Ans. (b) Yeast

9. Which of the following is not a part of the female reproductive system in human beings ?

(a) Ovary

(b) Uterus

(c) Vas deferens

(d) Fallopian tube

Ans. (c) Vas deferens

10. The anther contains

(a) sepals

(c) carpel

(b) ovules

(d) pollen grains

Ans. (d) pollen grains