ATP Cell's Energy Currency | Mcqs

1. ATP is also called:
   A) Cell’s energy coin B) Cell’s energy bank C) Cell’s energy currency D) Cell’s energy saver
2. The scientist who proposed that ATP is the main energy-transfer molecule was:
   A) Robert Hooke B) Fritz Lipmann C) James Watson D) Gregor Mendel
3. The year in which Fritz Lipmann proposed ATP’s role was:
   A) 1931 B) 1938 C) 1941 D) 1951
4. ATP molecule is composed of:
   A) Nitrogen base + glucose + phosphate B) Adenine + glucose + phosphate C) Adenine + ribose + three phosphates D) Adenine + galactose + two phosphates
5. The nitrogen-containing base present in ATP is:
   A) Guanine B) Cytosine C) Thymine D) Adenine
6. The sugar present in ATP is:
   A) Glucose B) Ribose C) Fructose D) Sucrose
7. The bonds between the phosphate groups of ATP are called:
   A) Covalent weak bonds B) Ionic bonds C) Hydrogen bonds D) High-energy covalent bonds
8. Breaking of one phosphate bond of ATP releases energy about:
   A) 5.3 kcal/mole B) 7.3 kcal/mole C) 9.3 kcal/mole D) 10.3 kcal/mole
9. The breakdown of ATP involves:
   A) ATP → AMP + 2Pi B) ATP + H₂O → ADP + Pi + energy C) ADP → ATP + Pi D) ATP → Ribose + Adenine
10. The outer phosphate bond of ATP is called:
    A) Low-energy bond B) High-energy bond C) Ionic bond D) Hydrogen bond
11. When ATP loses one phosphate, it becomes:
    A) AMP B) ADP C) AMP + Pi D) ATP + Pi
12. When ADP loses one phosphate, it forms:
    A) ATP B) Glucose C) AMP D) Ribose
13. The energy required for making ATP comes from:
    A) Photosynthesis only B) Respiration only C) Oxidation of food D) Water splitting
14. ATP is made during:
    A) Energy-consuming processes B) Energy-releasing processes C) Photosynthesis only D) Protein formation
15. ATP is broken down during:
    A) Energy-releasing processes B) Energy-consuming processes C) Photosynthesis only D) Protein storage

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