Biology

1. Which of the following set of three items are not true as each set belongs to the category mentioned against them

Lysine, glycine, thiamine-Amino acids

Optic nerve, occulomotor, vagus-Sensory nerves

Rennin, helicase and Hyaluronidase-Enzyme

Myosin, oxytocin and gastrin – Hormones

Question 1 of 15

2. The total number of nitrogenous bases in human genome is estimated to be about

3.5 million

35 million

3.1 billion

35 thousand

Question 2 of 15

3. Michaelis constant K_m is equal to

K₁ x K₂/ K₃

K₁/K₂ – K₃

K₂ – K₃/K₁

K₂ + K₃/K₁

Question 3 of 15

4. Which statement is true?

Guanosine has 3 nitrogen atoms

Cytosine has 3 nitrogen atoms

Uracil has 5 nitrogen atoms

Adenine has 4 nitrogen atoms

Question 4 of 15

5. Proteins are

Polyglycol

Polynuckeotides

Polysaccharides

Polyamides

Question 5 of 15

6. Which of the following gives Fehling’s test?

Pectin

Sucrose

Glucose

Cellulose

Question 6 of 15

7. Alpha-keratin is a protein, present in

Eggs

Blood

Skin

Lymph

Question 7 of 15

8. Gamma globulins are synthesized inside

Kidney

Bone marrow

Lymph and lymphoid tissues

Liver

Question 8 of 15

9. Which of the following contain β-1, 4 linkage?

Sucrose

Maktise

Lactose

Fructose

Question 9 of 15

10. The figure given below show three velocity substrate concentration curves for an enzyme reaction. What do the curves a, b and c depict respectively?

(a) a – normal enzyme reaction

b – competitive inhibition

c – non-competitive inhibition

(b) a – enzyme with an allosteric modulator added.

b – normal enzyme activity

c – competitive inhibition

(c) a – enzyme with an allosteric stimulator

b – competitive inhibitor added

c – normal enzyme reaction

(d)a – normal enzyme reaction.

b – non-competitive inhibitor added

c – allosteric inhibitor added

Question 10 of 15

11. Which is the derivative of amino acid?

All of these

Epinephrine

Estrogen

Progesterone

Question 11 of 15

12. Which one of the following statements regarding starch and cellulose is not correct?

Both of them are of plant origin.

Both of them give colour with iodine.

Both of them are made up of glucose molecules

Both of them are polymers

Question 12 of 15

13. Apoenzyme is

Vitamin

Protein

Lipid

Sugar

Question 13 of 15

14.

The given graph shows the effect of substrate concentration on the rate of reaction of the enzyme greengram-phosphatase. What does the graph indicate?

Formation of an enzyme-substrate complex

At higher substrate concentration the pH increases

Presence of an enzyme inhibitor in the reaction mixture

The rate of enzyme reaction is directly proportional to the substrate concentration

Question 14 of 15

15. An example of competitive inhibition of an enzyme is the inhibition of

Cytochrome oxides by cyanide

Hexokinase by glucose-6-phosphate

Succinic dehydrogenase by malonic acid

Carbonic anhydrase by carbon dioxide

Question 15 of 15

Test Name	Micro & Macro molecules Test
Subject	Biology
Test Type	MCQs
Total Question	15
Total Marks	30
Total Time	15 Mints
Test Help For	Biology Subject Test Prep. All Admission Test Preparation. All Medical Colleges Admission Test GRE Subject Test. Science Test preparation.

Test By Subject	Biology
Test By Topics	Biology Subject

Test Advisor

Micro Macro molecules Test Online MCQs

Micro & Macro molecules Test Online MCQs

Biology

Leave a Reply Cancel reply