MCQ on Lysosomes for NEET Pdf
MCQ on Lysosomes with Answers Pdf:
Lysosomes are considered to be the most important topic for any Life Science entrance examination. As it is one of the easiest topics, it is often ignored and undermined by many students. But if you want to get an edge over others, here is a tip, master MCQ on Lysosomes. As we know Cell Biology demands the attention of students in understanding Cells at the Molecular Level and concrete basic understanding but once done it only gets easier from there. Mastering the Below MCQ on Lysosomes should boost your NEET entrance exam Preparation.
This article leads you to hundreds of solved MCQs on Lysosomes Which are important topics important from the NEET standpoint and Other Entrance Exams. The MCQ below lists different topics with corresponding Lysosomes MCQ, facilitating smooth learning and search experience.
Important Points to Remember about Lysosomes :
- Lysosomes are the membrane-bound cell organelle filled with proteolytic/hydrolytic enzymes which control the intracellular digestion of the macromolecules.
- Lysosomes contain Near about 40 different types of hydrolytic enzymes such as include lipases, sulphatases, phosphatases, glycosidases, etc. These enzymes work optimally in an acidic environment and the lysosome provides an acidic environment for these enzymes.
- They also digest the cells in which they are present (autolysis) by their enzymes. This results in cell death. Hence lysosomes are called suicide bags of the cell.
- Golgi apparatus and endoplasmic reticulum together form lysosomes by gathering simple molecules formed by budding from the Golgi complex. These simple molecules are combined and packed to form the complex structure of lysosomes.
- Lysosomes are generally two types Primary Lysosomes and Secondary Lysosomes.
- Primary lysosomes secrete hydrolytic enzymes from the outside through exocytosis, which is responsible for the breakdown of extracellular substances, and this process is known as extracellular digestion. and the digestion of intracellular substances is called intracellular digestion.
- Intracellular digestion can involve heterophagy or autophagy. Heterophagy occurs through endocytosis when exogenous substances are absorbed into the cell, and enzymes break down these substances into secondary lysosomes.
- In the event of apoptosis or cell damage, autophagy triggers the digestion of the cellular material itself.
MCQ on Lysosomes
1. Lysosomes were first discovered by Christian de Duve in___________
(a) 1944
(b) 1955
(c) 1966
(d) 1977
Answer: B
Read: MCQ on Cell
2. Which of the following organelle is called the “suicidal bags” of the cell?
(a) Cytoplasm
(b) Lysosomes
(c) Mitochondria
(d) Endoplasmic reticulum
Answer: B
3. The lysosomal membrane is rich in___________.
(a) Sterols
(b) Cardiolipin
(c) Sialic acid
(d) All of the above
Answer: C
Read : MCQ on Cell Organelles
4. The lysosome of the cell contains_________
(a) Genetic material
(b) Digestive enzymes
(c) Bone
(d) Alveoli
Answer: B
5. Lysosomes are the Membrane-bound Vesicles that are Arisen from the ____?
(a) Mitochondria
(b) Golgi apparatus
(c) Endoplasmic reticulum
(d) Ribosomes
Answer: B
Read: MCQ on Mitochondria
6. How Lysosomes formed_________
(a) By budding off from the trans-Golgi network membrane
(b) From the cytoplasm
(c) Phospholipid bilayer
(d) None of the above
Answer: A
7. What is the pH of a lysosome?
(a) Acidic
(b) Basic
(c) Neutral
(d) Depends on the cell type
Answer: A
Read: MCQ on Nucleus
8. Which of the following enzymes are used as a marker for the lysosomes?
(a) Phospholipase
(b) Acid phosphatase
(c) Pyruvate dehydrogenase
(d) Succinate dehydrogenase
Answer: B
9. Which of the Below Given Organelle is Known as the Dense Perinuclear Bodies?
(a) Lysosomes
(b) Nucleolus
(c) Peroxisome
(d) All of the above
Answer: A
Read : MCQ on Vacuoles
10. In which of the following cells Lysosomes are absent?
(a) Animal cells
(b) Erythrocytes
(c) Hepatocytes
(d) Muscle cells
Answer: B
11. In the lysosomes, intracellular digestion involves.
(a) Heterophagy
(b) Phagocytosis
(c) Pinocytosis
(d) None of them
Answer: A
Read: MCQ on Cell Wall
12. Which of the Following Cells have the Most Active Lysosomes?
(a) Skin cells
(b) Brain cells
(c) Intestinal cells
(d) White blood cells
Answer: D
13. Which of the following are the functions of lysosomes?
(a) Autolysis
(b) Autophagy
(c) Digestion
(d) All of the above
Answer: D
Read: MCQ on Cytoplasm
14. Which of the following organelle works as a lysosome in plants?
a) Contractile vacuole
b) Peroxisome
c) Plastid
d) Vacuole
Answer: D
15. Identify the Below Biomolecules as the Components of Lysosomes?
(a) Glyco protein and Carbohydrates
(b) Phosphate esters and nucleases
(c) Amino acid chain and tRNA
(d) Ribosomes and Matrix
Answer: B
16. Which of these are not the hydrolytic enzymes of lysosomes?
a) Lipases
b) Sulfatases
c) Phosphatases
d) Aldolase
Answer: D
17. Which of the following statements are true about the acidic pH of lysosomes?
(a) Presence of anabolic enzymes
(b) Deposition of waste materials
(c) Presence of hydrolytic enzymes
(d) All of the above
Answer: A
18. Lysosomes are involved in___________.
(a) Digestion
(b) Intracellular digestion
(c) Extracellular digestion
(d) Both intracellular and extracellular digestion
Answer: D
19. Disease Caused by the Malfunction of the Lysosome?
(a) Cancer
(b) Alzheimer’s
(c) Batten Disease
(d) Aspartylglucosaminuria
Answer: D
20. Is the type of lysosome enzyme, this includes ribonuclease and deoxyribonuclease, it breaks down polynucleotides.
(a) Nucleases
(b) Phosphatases
(c) Sulphatases
(d) Proteases
Answer: A
21. Which cell organelle is tasked with collecting and recycling cytoplasmic debris?
(a) Nucleus
(b) Lysosome
(c) Ribosomes
(d) Endoplasmic reticulum
Answer: B
22. Why are Lysosomes Considered as the “Garbage Trucks” of Cells?
(a) Due to the transport of materials between two cell organelles
(b) Due to the pump materials from outside to the inside of a cell
(c) they remove all unwanted cellular materials
(d) Due to the transport of materials from one cell to another
Answer: C
23. Which of the following enzymes are used as a marker for the lysosomes?
(a) Phospholipase
(b) Acid phosphatase
(c) Pyruvate dehydrogenase
(d) Succinate dehydrogenase
Answer: B
24. Which of the following organelle control intracellular digestion of macromolecules with the help of hydrolytic enzymes?
a) Plastid
b) Peroxisome
c) Lysosome
d) Actin
Answer: C
25. Which molecules can be hydrolyzed by lysosomal enzymes?
(a) Proteins
(b) Fats and polysaccharides
(c) Nucleic acids
(d) All of the above
Answer: D
26. Which of the following organelles has an acidic internal pH?
(a) Nucleus
(b) Lysosomes
(c) Golgi apparatus
(d) Mitochondria
Answer: B
27. Which of the following is not a function of the lysosome within the cell?
(a) Degradation of cellular components that have become too old to function properly.
(b) Contain an acidic, aqueous lumen for efficient destruction of components.
(c) Detoxification of ethanol through oxidation reactions.
(d) Uptake of organelles through autophagy.
Answer: C
28. What are acid hydrolases?
(a) Proteins designed to break apart acids using water
(b) Proteins that break apart molecules using acid catalysts
(c) Protein designed to create acids
(d) Proteins commonly found in lysosomes and designed to function at low pH
Answer: D
29. Lysosomes are __________ vesicular structures formed by the process of packaging in the _________.
(a) membrane-bound, Golgi apparatus
(b) non-membrane bound, Golgi apparatus
(c) membrane-bound, ER
(d) non-membrane bound, ER
Answer: A
30. Which of the following statements is not correct regarding lysosomes?
(a) Lysosomes are membrane structures
(b) Lysosomes have numerous hydrolytic enzymes
(c) The hydrolytic enzymes of lysosomes are active under acidic pH
(d) Lysosomes are formed by the process of packaging in the endoplasmic reticulum
Answer: D
31. Lysosomes have a high content of__________
(a) Hydrolytic enzymes
(b) lipoproteins
(c) polyribosomes
(d) DNA ligases
Answer: A
32. Assertion: Lysosomes are capable of digesting carbohydrates, proteins, lipids, and nucleic acids. Reason: Lysosomes are rich in hydrolytic enzymes like lipases, proteases, and carbohydrates.
(a) If both assertion and reason are true and the reason is the correct explanation of assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of assertion.
(c) If the assertion is true but the reason is false.
(d) If both assertion and reason are false.
Answer: A
33. Assertion: The endomembrane system includes the endoplasmic reticulum (ER), Golgi complex, lysosomes, and vacuoles. Reason: Mitochondria, chloroplast, and peroxisomes are not part of the endomembrane system because their functions are coordinated with the same.
(a) If both assertion and reason are true and the reason is the correct explanation of assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of assertion.
(c) If the assertion is true but the reason is false.
(d) If both assertion and reason are false.
Answer: B