StudentAidUnit 6: Biomolecules — Mcqs
9th Class Biology · Unit 6: Biomolecules
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Multiple Choice Questions (Exercise)
1.What is the primary function of carbohydrates?
2.How will you differentiate between monosaccharides and polysaccharides?
3.What is true about cellulose?
4.Which of the following proteins is involved in oxygen transport?
5.Which component of an amino acid determines its unique properties?
6.Which proteins are involved in defence against pathogens?
7.Which of the following is the basic structural unit of most lipids?
8.How do unsaturated fatty acids differ from saturated fatty acids?
9.Which of the following is NOT a function of proteins?
10.Which components make up a nucleotide?
11.Which nitrogenous base is found in RNA but not in DNA?
Multiple Choice Questions (Additional)
Biomolecules
12.Biomolecules make the dry mass of living organisms:
Carbohydrates
13.Which of the disaccharide is also called transport sugar?
14.Which is not a function of carbohydrates?
15.Most abundant carbohydrate is:
16.%age of carbohydrates in dry mass of protoplasm:
- a 93
- b 7
- c 15
- d 50
Proteins
17.Different amino acids differ from each other on the basis of their _____ group:
18.%age of protein in dry mass of protoplasm:
19.Types of amino acids make proteins:
20.Proteins present in muscle cells:
21.Most abundant biomolecule in the cell is:
22.Amino acids present in insulin:
Lipids
23.The amount of energy obtained from one gram of fat is:
24.%age of lipids in dry mass of protoplasm:
- a 10
- b 15
- c 50
- d 18
Nucleic Acids
25.During translation, sequence of amino acids in the protein decided on the basis of sequence of nucleotides in:
26.Both strands of DNA are held together by hydrogen bonding. double hydrogen bonds are present between:
27.Transcription takes place in the:
28.All the nucleotides of RNA differ from the nucleotides of DNA in having different:
29.The type of RNA that brings amino acids to the ribosome is:
30.Genes are short segments of:
31.Which of the following statements regarding genes is false?
- a Genes are located on chromosomes
- b Genes consist of a long sequence of DNA
- c A gene contains information for the production of a protein
- d Each cell contains a single copy of every gene
32.Genes contain instructions for the synthesis of:
33.Polynucleotide strands present in DNA molecule are:
34.This is a heredity material:
35.%age of nucleic acids in dry mass of protoplasm:
- a 7
- b 90
- c 10
- d 18
36.Essential part of nucleic acids are: