MCQs on Metabolism of Fats, Proteins and Carbohydrates

MCQs on Metabolism of Fats, Proteins and Carbohydrates

Metabolism of Fats, Proteins and Carbohydrates – Definition


likewise catabolism of carbohydrates ( glucose ), through glycolysis also from Krebs cycle and Electron transport  chain is the most common metabolic pathway in cells of animals to harvest energy. But animals also consume fats and proteins. These may be used to harvest energy in order to perform physiological functions. All the MCQs about Metabolism of Fats and Proteins are published according to the new study syllabus for academic year 2021-22.

Table of Contents:

  • Metabolism of Fats
  • Metabolism of Proteins

Read More: Zoology MCQs Test Online with Answer Key


All of these MCQs on “Metabolism of Fats, Proteins and Carbohydratesin Zoology MCQs are preferably for test / interview preparation for BSc, MSc, BS (Hons), NTS, FPSC, PPSC, PTS, CSS, MDCAT, ECAT, MCAT and all other competitive examination for foreign study including overseas students.


MCQs on Metabolism of Fats, Proteins Questions and Answers


𓇼 Metabolism of Fats:

Q1. The long chain fatty acids and glycerol formed__________.

  1. lipids
  2. fats
  3. proteins
  4. none

Answer: b

Q2. What are triglycerides?

  1. Structure of three fatty acids
  2. Structure of glycerol
  3. Structure of two fatty acids
  4. All of the above

Answer: a

Q3. The initial catabolism of a ___________ begins with the digestion of the triglycerides to glycerol and three fatty acid molecules.

  1. carbohydrates
  2. proteins
  3. lipids
  4. fats

Answer: d

Q4. Which is phosphorylated and can enter the glycolytic pathway at the level of glyceraldehydes 3-phosphate?

  1. Fatty acids
  2. Glycerol
  3. Lipids
  4. Phospholipids

Answer: b

Q5. Where the free fatty acids move into the cell?

  1. Ribosomes
  2. Mitochondrion
  3. Lysosomes
  4. Vacuole

Answer: b

Q6. Into the mitochondrion, the carbons of free fatty acid molecules are removed.            True/false

Answer: True


Read More: MCQs on Fermentation Questions and Answers


Q7. After removing carbons of free fatty acid molecules into the mitochondrion, they formed_____________.

  1. NADH
  2. FADH2
  3. Acetyl coenzyme A
  4. Pyruvate

Answer: c

Q8. In which process, the oxidation of acetyl coenzyme A occurred?

  1. Krebs cycle
  2. Glycolysis
  3. Electron transport chain
  4. All of the above

Answer: a

Q9. Which produces additional NADH and FADH2?

  1. Krebs cycle
  2. Glycolysis
  3. Electron transport chain
  4. Acetyl coenzyme A

Answer: d

Q10. During which process, the oxidation of NADH and FADH2 occurred?

  1. Anabolism
  2. Krebs cycle
  3. Glycolysis
  4. Electron transport chai

Answer: d

Q11.The number of hydrogen atoms per unit weight of fat is greater than in carbohydrates or protein.       True/False

Answer: True 

Q12. 1 g of which molecule provides about 2.5 times more ATP energy?

  1. Carbohydrate
  2. Protein
  3. Fat
  4. Amino acid

Answer: c


Read More: MCQs on How Do Cells Get Energy Quiz


Q13. Many animals store energy in the form of fat in adipose tissue.    True/False

Answer: True

𓇼 Metabolism of Proteins:

Q14. Animals digest proteins into fatty acids.           True/False

Answer: False (into amino acids)

Q15. Which are used to synthesize new proteins?

  1. Fatty acids
  2. Amino acids
  3. Aldehydes
  4. Ketones

Answer: b

Q16. Which gas is produced when amine group is removed?

  1. Nitrogen
  2. Ammonia
  3. Sulfur
  4. Carbon dioxide

Answer: b

Q17. Which process is called a deamination reaction?

  1. When amine group is removed to yield ammonia
  2. When amine group is removed to yield nitrogen
  3. When amine group is added to yield ammonia
  4. When amine group is added to yield nitrogen

Answer: a

Q18. During deamination, which process/processes take place?

  1. An oxygen atom replaces an amine group to form a keto acid
  2. The keto acid can enter into the Krebs cycle
  3. The carbon skeleton of the amino acid is broken and oxidized to CO2
  4. All of the above

Answer: d


Read More: MCQs on Respiratory Balance Sheet For Aerobic Respiration


Q19. 1g of protein yields about the same amount of energy as 1g of _____________.

  1. fat
  2. fatty acids
  3. glucose
  4. lipids

Answer: c

Q20. Which is highly toxic and must be excreted?

  1. fat
  2. protein
  3. amino acids
  4. ammonia

Answer: d

Leave a Reply

Your email address will not be published. Required fields are marked *