MCQ On Biomolecules

Biomolecules are the molecules or ions present in an organism that are essential for the biological processes such as growth, development, cell division, etc. Biomolecules include large molecules or macromolecules such as proteins, carbohydrates, lipids, and nucleic acids, whereas the smaller molecules or macromolecules include metabolites and natural products.

Biomolecules MCQs

1. Which biomolecule is distributed more widely in a cell?

  1. Chloroplast
  2. RNA
  3. DNA
  4. Spaherosomes

2. Which is a reducing sugar?

  1. Galactose
  2. Gluconic acid
  3. Sucrose
  4. β-methyl galactosidase

Also Read: Biomolecules

3. Most abundant RNA in the cell

  1. rRNA
  2. mRNA
  3. tRNA
  4. tRNA threonine

4. Name the simplest amino acid

  1. Alanine
  2. Tyrosine
  3. Asparagine
  4. Glycine

5. Mineral associated with cytochrome is

  1. Mg
  2. Cu and Ag
  3. Fe
  4. Cu

Also Read: Amino acids

6. The most common secondary structure of proteins is

  1. β-pleated sheet
  2. β-pleated sheet parallel
  3. β-pleated sheet non-parallel
  4. α-helix

7. The term enzyme was coined by

  1. Urey Miller
  2. Pasteur
  3. Kuhne
  4. Buchner

8. β-oxidation occurs in

  1. Nucleus
  2. Cytoplasm
  3. Mitochondria
  4. Chloroplast

Also read: Proteins

9. Koshland’s theory of enzyme action is known as

  1. Lock and key theory
  2. Reduced fit theory
  3. Induced fit theory
  4. Enzyme coenzyme theory

10. A high content of triglycerides are found in

  1. VLDL
  2. LDL
  3. HDL
  4. Chylomicrons

Also Read: Carbohydrates

11. Haemoglobin has

  1. Primary structure
  2. Secondary structure
  3. Tertiary structure
  4. Quaternary structure

12. Which is the most abundant biomolecule on earth?

  1. Mineral salts
  2. Proteins
  3. Lipids
  4. Carbohydrates

Also Read: Lipids

13. In which of the following an anticodon occurs

  1. tRNA
  2. mRNA
  3. rRNA
  4. DNA

14. The fastest enzyme is

  1. DNA gyrase
  2. Pepsin
  3. DNA polymerase
  4. Carbonic anhydrase

15. Which of the following is a phospholipid?

  1. Sterol
  2. Cholesterol
  3. Lecithin
  4. Steroid

Also Read: Difference between DNA and RNA

 

Answer Key

1- b 2- a 3- a 4- d 5- c 6- d 7- c 8- c
9- c 10- d 11- d 12- d 13- a 14- d 15- c

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