Questions

Name the vitamin whose deficiency causes excessive bleeding?

Primary growth in plants occurs by

A. Vertical meristem

B. Lateral meristem

C. Intercalary meristem

D. Apical meristem

Which of the following statement(s) is/are CORRECT?

I. Oils containing unsaturated fatty acids should be used for cooking.

II Animal fats have saturated carbon chains.

III. Saturated fatty acids are generally harmful for health.

The human heart is 

An electron loses potential energy when it

Plaster of Paris ______.

I. changes into gypsum on mixing with water

II. is CaSO4.2H2O

III. is used for decoration

Valency of an element depends on which of the following?

I. Number of losing electron

II. Number of gaining electron

III. Number of sharing electron

Which of the following is NOT a feature found in almost every cell ?