Techno India Group Public School

1. Irregular groove which externally demarcates Atria from Ventricles is called

(A) Coronary sulcus
(B) Interventricular sulcus
(C) Interventricular septum
(D) Atrioventricular septum

2. The phenomenon of uptake of water at the expense of energy by the cell and usually against the osmotic gradient is known as

(A) Passive absorption
(B) Active absorption
(C) Imbibition
(D) Cell to cell osmosis

3. Cavities of brain are called

(A) Auricles
(B) Ventricles
(C) Coelom
(D) Lumen

4. Cut leaves remain green for longer time when dipped in

(A) Cytiokinins
(B) Ethylene
(C) Gibberellin
(D) Auxin

5. The growth of the pollen tube towards the ovule is due to

(A) Phototropism
(B) Chemotropism
(C) Geotropism
(D) Hydrotropism

6. Which of the following is the correct sequence regarding sexual reproduction in a flowering plant

(A) Pollination, fertilization, seedling, embryo
(B) Seedling, embryo, fertilization, pollination
(C) Pollination, fertilization, embryo, seedling
(D) Embryo, seedling, pollination, fertilization

7. Which of the following is celebrated as ‘World AIDS Day’?

(A) September 1
(B) October 1
(C) November 1
(D) December 1

8. Refer to the given Venn diagram

Select the correct option regarding it —

(A) In X, a number of daughter individuals are formed.
(B) In Y, the nucleus of the parent body divided repeatedly.
(C) X is a process which takes place in Plasmodium under favourable conditions.
(D) Y is a process which takes place in Planaria during favourable Conditions.

9. How many genes a child receives from its father?

(A) 25%
(B) 50%
(C) 75%
(D) 100%

10. A segment of DNA providing information for a protein is called

(A) Character
(B) Trait.
(C) Genom.
(D) Gene.

11.

Assertion: Goitre is swelling in the neck region
Reason: It is caused by greater growth of thymus

(A) Both assertion (A) and reason (R) are true and reason is correct explanation of assertion.
(B) Both assertion (A) and reason (R) are true but reason is not the correct explanation of the assertion.
(C) Assertion (A) is true but reason (R) is false.
(D) Assertion (A) is false but reason (R) is true.

12.

Assertion: Scrotum provides high temperature for the sperms to mature
Reason: The rate of sperm formation is maximum at about 34°C temperature

(A) Both assertion (A) and reason (R) are true and reason is correct explanation of assertion.
(B) Both assertion (A) and reason (R) are true but reason is not the correct explanation of the assertion.
(C) Assertion (A) is true but reason (R) is false.
(D) Assertion (A) is false but reason (R) is true.

13.

Assertion: The biggest discovery of Mendel was non mixing of traits
Reason: Traits are particulate entities

(A) Both assertion (A) and reason (R) are true and reason is correct explanation of assertion.
(B) Both assertion (A) and reason (R) are true but reason is not the correct explanation of the assertion.
(C) Assertion (A) is true but reason (R) is false.
(D) Assertion (A) is false but reason (R) is true.

14.

Assertion: Herbivores have well developed incisors
Reason: Carnivores have well developed Canines

(A) Both assertion (A) and reason (R) are true and reason is correct explanation of assertion.
(B) Both assertion (A) and reason (R) are true but reason is not the correct explanation of the assertion.
(C) Assertion (A) is true but reason (R) is false.
(D) Assertion (A) is false but reason (R) is true.

15.

Assertion: The efferent arteriole of Glomerulus has wider diameter than the afferent arteriole
Reason: Blood flows under high pressure in the glomerulus

(A) Both assertion (A) and reason (R) are true and reason is correct explanation of assertion.
(B) Both assertion (A) and reason (R) are true but reason is not the correct explanation of the assertion.
(C) Assertion (A) is true but reason (R) is false.
(D) Assertion (A) is false but reason (R) is true.