Biology - Study Mode

[#176] Prothrombin which helps in clotting of blood is released by
Correct Answer

(D) blood platelets

Explanation

Solution: Prothrombin is a plasma protein which is converted into thrombin in the presence of thromboplastin released by platelets at the site of injury. The thrombin then converts protein fibrinogen into insoluble fibrin and thus aids in blood clotting.

[#177] Myopia is connected with
Correct Answer

(B) eyes
(F) Eyes

Explanation

Solution: Myopia is connected with eyes.

[#178] Most of the red, blue and purple colours of plants are due to a pigment called
Correct Answer

(A) anthocyanin

Explanation

Solution: Anthocyanin - A blue, violet, or red flavonoid pigment found in plants.

[#179] Plants developing in dry conditions are
Correct Answer

(A) xerophytes

Explanation

Solution: Xerophytes are adapted to survive in hot deserts where there is very little water. Xerophytes are common in coastal areas and thrive in saline water.

[#180] Plants growing on sand are called as
Correct Answer

(D) psammophytes

Explanation

Solution: Psammophytes are plants that preferentially grow in sand.