Biological molecules (proteins) which catalyze a biochemical reaction and remain unchanged after completion of reaction are called_____________________?

Related Mcqs:

1. Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong____________?

   A. Globular proteins
   B. Fibrous Proteins
   C. Both a and b
   D. None of these

2. Breakdown of large molecules into smaller ones utilizing water molecules is_________?

   A. Hydration
   B. Hydrolysis
   C. Dehydration synthesis
   D. Electrolysis

3. Percentage of proteins in cell membrane is____________?

   A. 20-40%
   B. 40-50%
   C. 60-80%
   D. 80-100%

4. Proteins and lipids are converted into glycolipids and glycoproteins by adding carbohydrates by___________?

   A. Ribosomes
   B. Cytoplasm
   C. Golgi apparatus
   D. Endoplasmic reticulum

5. Primary structure of proteins determines__________?

   A. Number of polypeptide chains involved
   B. Bending of polypeptide chains
   C. Amino acid sequence
   D. Coiling of polypeptide chains

6. Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?

   A. i & ii
   B. iii & iv
   C. i ii iii & iv
   D. iv only

7. The element in basic structure of proteins which differentiate them from carbohydrates________?

   A. C
   B. S
   C. H
   D. N

8. Interconversion of carbohydrates proteins and lipids in living cells are an example of____________?

   A. Coordinated catabolic activities
   B. Coordinated anabolic activities
   C. Both A and B
   D. Any one

9. Which of the following proteins have role in heredity?

   A. Chromo-proteins
   B. Lipo-proteins
   C. Phospho-proteins
   D. Nucleo-proteins

   Submitted by: Nimra Shah

10. Cell use _______ to make proteins?

    A. DNA
    B. RNA
    C. Ribosomes
    D. Cytoplasm

    Submitted by: Kiran