Biology - Study Mode

[#246] In what chief capacity does vitamin k function?
Correct Answer

(B) Blood clot

Explanation

Solution: Health benefits and sources of vitamin K. Vitamin K refers to a group of fat-soluble vitamins that play a role in blood clotting, bone metabolism, and regulating blood calcium levels. The body needs vitamin K to produce prothrombin, a protein and clotting factor that is important in blood clotting and bone metabolism.

[#247] When more than 20% of the body weight is due to fat, the person is suffering from
Correct Answer

(D) Obesity

Explanation

Solution: Obesity - when body fat exceeds 30% of total weight.

[#248] Bone deformities occur due to the excess intake of
Correct Answer

(D) Fluorine

Explanation

Solution: When there is an excessive intake of fluorine in the diet, the person suffers from many dental and bone-related deformities.
The long bones are affected which results in breaking and fractures in the bones.
There is a reduction in bone density and elasticity which results in osteosclerosis.
There are problems with dental fluorosis in cases of children during the growth of the teeth in case of a high intake of fluorine. Thus, the correct answer is option D.

[#249] Cellulose is a
Correct Answer

(D) Carbohydrate

Explanation

Solution: Cellulose is a carbohydrate formed by a linear polymerisation of β-D-glucose units, which in contrast to starch, is oriented with − CH 2 OH groups, alternating above and below the plane of the cellulose molecule, thus producing long, unbranched chains.

[#250] Deficiency of 'Thiamine' causes
Correct Answer

(A) Beri-Beri

Explanation

Solution: Thiamine deficiency, or beriberi, refers to the lack of thiamine.