MCQs on Proteins
Biochemistry 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
