Lysosome Multiple Choice Questions MCQs with Answers

1. Who recognized lysosomes as separate organelle?
a. De Duve
b. De Varies
c. Schleiden
d. Palade
Answer: a. De Duve

2. Lysosomal sacs are rich in
a. Reductases and oxidases
b. Acid phosphatase and hydrolytic enzymes
c. Only acid phosphatase
d. Dehtdrogenases
Answer: b. Acid phosphatase and hydrolytic enzymes

3. What of the following is relevant to the term autophagosome?
a. Food vacuole
b. Secondary lysosomes
c. Digestive vacuole
d. All of these
Answer: d. All of these

4. A single-layered membranous organelle is:
a. Mesosomes
b. Lysosomes
c. Centrosome
d. Nucleus
Answer: b. Lysosomes

5. Lysosomes are reservoirs of:
a. RNA
b. Lipids
c. Hydrolytic enzymes
d. Glycoproteins
Answer: c. Hydrolytic enzymes

6. An engulfed cell organelle and Golgi vesicle are collectively known as?
a. Peroxisome
b. Food vacuole
c. Secondary lysosomes
d. Digestive vacuole
Answer: c. Secondary lysosomes

7. Autophagy is a feature of which of the following?
a. Mitochondria
b. Lysosomes
c. Peroxisome
d. All of mentioned above
Answer: b. Lysosomes

8. Which of the following is NOT a function of lysosome?
a. Phagocytosis
b. Apoptosis
c. Autophagy
d. Energy generation
Answer: d. Energy generation

Recommended: Lysosomes Online Practice Test

9. The process in which parts of cells are digested to produce energy is known as:
a. Lactation
b. Starvation
c. Assimilation
d. Ingestion
Answer: b. Starvation

10. Which of the following are also known as suicidal bags?
a. Peroxisome
b. Lysosomes
c. Glyoxisome
d. Golgi apparatus
Answer: b. Lysosomes

11. Which cells are affected in Tay-Sachs disease due to the accumulation of lipids?
a. Liver cells
b. Muscle cells
c. brain cells
d. Kidney cells
Answer: c. brain cells

12. Which cells are most appropriate to study lysosomes?
a. White blood cells
b. Nerve cells
c. muscle fibres
d. Leaf mesophyll
Answer: a. White blood cells

13. The lysosomes which eat parts of their own cell are known as:
a. Autophagosome
b. Primary Lysosomes
c. All options
d. Peroxisomes
Answer: a. Autophagosome

14. Which of the following are causes of storage diseases?
a. Storage of glycolipids
b. Lack of enzymes
c. Mutations
d. All of these
Answer: d. All of these

15. In the disease glycogenosis type II, glycogen fills the liver and…?
a. Pancreas
b. Lungs
c. Kidneys
d. Muscles
Answer: d. Muscles

16. Lysosomal membranes are rich in…?
a. Cardiolipin
b. Sterols
c. Sialic acid
d. All of these
Answer: c. Sialic acid

17. In which of the following cells Lysosomes are absent?
a. Muscles cells
b. Hepatocytes
c. Erythrocytes
d. Animal cells
Answer: c. Erythrocytes

18. What is the pH of a lysosome in nature?
a. Depends on the cell type
b. Neutral
c. Basic
d. Acidic
Answer: d. Acidic

19. Which of the following enzymes are defined as lysosomal marker enzymes?
a. Phospholipase
b. Acid phosphatase
c. Pyruvate dehydrogenase
d. Succinate dehydrogenase
Answer: b. Acid phosphatase

20. Choose the correct statement about the acidic pH of lysosomes:
a. Presence of anabolic enzymes
b. Deposition of waste materials
c. Presence of hydrolytic enzymes
d. All of these
Answer: a. Presence of anabolic enzymes

21. Which of the following organelle is known as Perinuclear dense bodies?
a. Nucleolus
b. Lysosomes
c. Peroxisome
d. All of these
Answer: b. Lysosomes

22. Which of the following staining technique is used to locate the lysosomes?
a. Bismarck stain
b. Gomori stain
c. Osmium tetroxide
d. Janus Green Staining
Answer: b. Gomori stain

23. Lysosomes are considered the “garbage trucks” of a cell because:
a. They transport materials between two cell organelles
b. They pump materials from outside to the inside of a cell
c. They remove all unwanted cellular materials
d. They transport materials from one cell to another
Answer: c. They remove all unwanted cellular materials

24. Which of the following is a membrane-bound cell organelle that contains digestive enzymes?
a. Lysosome
b. Ribosome
c. Golgi Body
d. All of these
Answer: a. Lysosome

25. Lysosomes are found in all animal cells, but are most active in…?
a. Skin cells
b. Brain cells
c. Intestinal cells
d. White blood cells
Answer: d. White blood cells

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