Biochemistry MCQs on Proteins

MCQs on Proteins

Also Read Biochemistry MCQs on Nucleic Acids

1. One gram of protein contains

      (a) 4.3 kcal

      (b) 4.2 kcal

      (c) 5.2 kcal

      (d) 5.4 kcal

2. The first class of proteins are

      (a) Animal proteins

      (b) Plant proteins

      (c) Both

      (d) None 

3. Proteins occur naturally in how many forms?

      (a) 25

      (b) 20

      (c) 21

      (d) 15

4. Peptide bond formed by the enzymes is

Known as

      (a) Carbonic anhydrase

      (b) Peptidase

      (c) Carbohydrate

      (d) Peptidyl transferase

Answer (d) Peptidyl transferase

5. The proteins are synthesized at

      (a) Centrosomes

      (b) Ribosomes

      (c) Golgi bodies

      (d) Mitochondria

6. Most abundant Protein is found in

      (a) Cytoplasm

      (b) Liver

      (c) Mitochondria

      (d) Brain

7. Which proteins are called messenger protein?

      (a) Enzymes

      (b) Hormones

      (c) Storage

      (d) Antibodies

8. Proteins thqt helps in increasing the rate of chemical reaction in the body

      (a) Enzymes

      (b) Antibody

      (c) Structural proteins

      (d) Transport proteins

9. Example of a digestive enzyme

      (a) Lactase

      (b) Pepsin

      (c) Keratin

      (d) Collagen

Answer (b) Pepsin

10. In milk which enzymes break down sugar lactose

      (a) Keratin

      (b) Collagen

      (c) Lactase

      (d) None of these

11. The protein helps to protect from any diseases in the body

      (a) Antibodies

      (b) Enzymes

      (c) Storage proteins

      (d) Transport proteins

12. Which proteins are called transport proteins?

      (a) Ovalbumin

      (b) Hemoglobin

      (c) Keratin

      (d) Enzymes

13. The protein that stores the iron in the transport protein is

      (a) Ferritin

      (b) Keratins

      (c) Elastin

      (d) None of these

14. Which protein is found in egg whites?

      (a) Collagens

      (b) Casein

      (c) Ovalbumin

      (d) Oxytocin

15. Proteins are synthesized in the body through

      (a) Translation

      (b) Transcription

      (c) Both

      (d) None of these

16. Translation occurs in the

      (a) Cytoplasm

      (b) Mitochondria

      (c) Ribosomes

      (d) nucleus

17. Enzymes are

     (a) Proteins

     (b) Carbohydrates

     (c) Nucleic acids

     (d) DNA molecules

18. Amino acids are

     (a) Building blocks of carbohydrates

     (b) Building blocks of DNA

     (c) Building blocks of lipids

     (d) Building blocks of proteins

Answer (d) Building blocks of proteins

19. The simplest amino acid is

      (a) Proline

      (b) Methionine

      (c) Glycine

      (d) Serine

20. The numbers of amino acid synthesized in our body

      (a) 20

      (b) 30

      (c) 40

      (d) 10

21. The result of extreme lack of proteins is

      (a Malaria

      (b) Typhoid

      (c) Kwashiorkor

      (d) None of these

22. In hair the protein found is

      (a) Elastin

      (b) Myosin

      (c) Keratin

      (d) Tropocollage

23. Proteins are soluble in

     (a) Benzene

     (b) Anhydrous acetone

     (c) Aqueous alcohol

     (d) Anhydrous alcohol

24. The milk of the cow, contain which protein

      (a) Albumin

      (b) Vitelline

      (c) Livetin

      (d) Casein

25. Which is not a food nutrient?

      (a) Carbohydrates

      (b) Vitamins

      (c) Proteins

      (d) Enzymes

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