Bioenergetics | Chapter 8 Biology | New Book | 2025

  Q1. The process of oxidation of food inside cells is called: A) Photosynthesis  B) Cellular Respiration  C) Fermentation D) Digestion Q2. The most common food molecule used by cells for energy is: A) Fat B) Protein  C) Glucose  D) Vitamin Q3. Aerobic respiration takes place in the presence of: A) Water  B) Oxygen  C) Carbon dioxide D) Alcohol Q4. In aerobic respiration, glucose is: A) Partially oxidized  B) Completely oxidized  C) Not oxidized D) Reduced Q5. The first phase of respiration breaks glucose into: A) Ethanol B) CO ₂   C) Pyruvic acid  D) Lactic acid Q6. How many pyruvic acid molecules are produced from one glucose molecule? A) 1  B) 2  C) 3 D) 4 Q7. Pyruvic acid has how many carbon atoms? A) 2  B) 3  C) 4 D) 5 Q8. Which type of respiration releases maximum energy? A) Aerobic respiration  B) Anaerobic respiration C) Fermentation D) Photosynthesis Q9. Cellular respiration without oxygen is called: A) Aerobic respiration  B) Anaerobic re...

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  Mechanism of photosynthesis consist of: A) Cytoplasm and nucleus    B) Mitochondria and cytoplasm     C) Light and dark reactions D) Ribosomes and nucleus Light reactions of photosynthesis take place in: A) Stroma of chloroplast            B) Cytoplasm    C) Nucleus         D) Thylakoid membranes The energy molecules produced in light reactions are: A) ATP only       B) NADPH only   C) Glucose + ATP           D) ATP and NADPH NAD is a: A) Protein         B) Coenzyme    C) Vitamin        D) Hormone The phosphorylated form of NAD is called: A) NADH            B) NAD  ...