Zigya Logo

Chapter Chosen


Book Chosen


Subject Chosen


Book Store

Download books and chapters from book store.
Currently only available for.
CBSE Gujarat Board Haryana Board

Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12
What do you mean by ‘vegetable oil rich in polyunsaturates’ ? Why is it recommended by physicians for persons suffering from high blood cholesterol or cardio vascular diseases ?

Polyunsaturated fatty acids are those which have more than one double bond. The vegetable oil having such polyunsaturate fatty acids is said to be rich in polyunsaturates.
Physicians recommend these to person's suffering from high blood pressure or cardio vascular diseases, because these lower the blood pressure and thus decreases the risks.  

What are major elements of a cell ?

Carbon, hydrogen, oxygen and nitrogen are the major elements of a cell.

Name one monosaccharide which provides energy ?


Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides

What is the general formula of carbohydrates ?

The carbohydrate has a general formula - CnH2nOn Or (CH2O)n.

What is the percentage of nucleic acids in cells ?

5 - 7 percent