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Class 10 Class 12
What are amphoteric compounds and Zwitter ions ?

The compounds having both acidic and basic properties are called amphoeteric compounds. e.g. amino acids. They are acidic due to –COOH group and basic due to – NH2 group.
Zwitter ion is a  molecule or ion having separate positively and negatively charged groups. For example amino acid which can have positive NH2 and negative COOH group.
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What is the general formula of carbohydrates ?

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

Name one monosaccharide which provides energy ?

Glucose
698 Views

Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides
670 Views

What is the percentage of nucleic acids in cells ?

5 - 7 percent
634 Views

What are major elements of a cell ?

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