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Botany - Biomolecules: Important Questions | 11th Botany : Chapter 8 : Biomolecules

Chapter: 11th Botany : Chapter 8 : Biomolecules

Biomolecules: Important Questions

Evaluation, Multiple choice questions with answers / choose the correct answer with answers, Book back 1 mark questions and answers, Answer the question





1. The most basic amino acid is

a. Arginine

b. Histidine

c. Glycine

d. Glutamine


2. An example of feedback inhibition is

a. Cyanide action on cytochrome

b. Sulpha drug on folic acid synthesiser bacteria

c. Allosteric inhibition of hexokinase by glucose-6-phosphate

d. The inhibition of succinic dehydrogenase by malonate


3. Enzymes that catalyse interconversion of optical, geometrical or positional isomers are

a. Ligases

b. Lyases

c. Hydrolases

d. Isomerases


4. Proteins perform many physiological functions. For example some functions as enzymes. One of the following represents an additional function that some proteins discharge:

a. Antibiotics

b. Pigment conferring colour to skin

c. Pigments making colours of flowers

d. Hormones


5. Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown & one blank component “ X” in it

Category : Compound

Cholesterol : Guanine

Amino acid : NH2

Nucleotide : Adenine

Nucleoside : Uracil


6. Distinguish between nitrogenous base and a base found in inorganic chemistry.

7. What are the factors affecting the rate of enzyme reaction?

8. Briefly outline the classification of enzymes

9. Write the characteristic feature of DNA

10. Explain the structure and function of different types of RNA


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