Q. Which organelle is known for detoxifying harmful substances in the cell? (2022)
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A.
Lysosome
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B.
Peroxisome
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C.
Ribosome
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D.
Nucleus
Solution
Peroxisomes are organelles that detoxify harmful substances and break down fatty acids.
Correct Answer: B — Peroxisome
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Q. Which organelle is known for its role in digestion within the cell? (2019)
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A.
Lysosome
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B.
Peroxisome
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C.
Mitochondria
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D.
Ribosome
Solution
Lysosomes are known for their role in digestion within the cell, containing enzymes that break down waste materials and cellular debris.
Correct Answer: A — Lysosome
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Q. Which organelle is responsible for packaging and modifying proteins? (2021)
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A.
Lysosome
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B.
Golgi apparatus
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C.
Nucleus
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D.
Chloroplast
Solution
The Golgi apparatus modifies, sorts, and packages proteins for secretion or delivery to other organelles.
Correct Answer: B — Golgi apparatus
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Q. Which organelle is responsible for photosynthesis in plant cells?
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A.
Mitochondria
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B.
Chloroplast
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C.
Ribosome
-
D.
Endoplasmic reticulum
Solution
Chloroplasts are the organelles responsible for photosynthesis, converting light energy into chemical energy.
Correct Answer: B — Chloroplast
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Q. Which part of the cell is responsible for controlling cell activities? (2021)
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A.
Cytoplasm
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B.
Nucleus
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C.
Mitochondria
-
D.
Golgi apparatus
Solution
The nucleus contains the cell's genetic material and is responsible for controlling cell activities.
Correct Answer: B — Nucleus
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Q. Which part of the cell is responsible for controlling the cell's activities? (2018)
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A.
Cytoplasm
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B.
Nucleus
-
C.
Mitochondria
-
D.
Golgi apparatus
Solution
The nucleus contains the cell's genetic material and controls its activities by regulating gene expression.
Correct Answer: B — Nucleus
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Q. Which structure is involved in the synthesis of lipids? (2022)
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A.
Rough ER
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B.
Smooth ER
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C.
Golgi apparatus
-
D.
Lysosome
Solution
The smooth endoplasmic reticulum (Smooth ER) is involved in the synthesis of lipids and detoxification processes.
Correct Answer: B — Smooth ER
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Q. Which structure is responsible for controlling the entry and exit of substances in a cell? (2022)
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A.
Cell wall
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B.
Plasma membrane
-
C.
Cytoplasm
-
D.
Nucleus
Solution
The plasma membrane regulates the movement of substances in and out of the cell, maintaining homeostasis.
Correct Answer: B — Plasma membrane
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Q. Which structure is responsible for maintaining the shape of plant cells? (2021)
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A.
Cell membrane
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B.
Cell wall
-
C.
Cytoplasm
-
D.
Chloroplast
Solution
The cell wall provides structural support and maintains the shape of plant cells.
Correct Answer: B — Cell wall
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Q. Which structure is responsible for packaging and transporting proteins?
-
A.
Lysosome
-
B.
Golgi apparatus
-
C.
Rough endoplasmic reticulum
-
D.
Nucleus
Solution
The Golgi apparatus is responsible for packaging and transporting proteins to their destinations.
Correct Answer: B — Golgi apparatus
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Q. Which structure is responsible for photosynthesis in plant cells? (2021)
-
A.
Mitochondria
-
B.
Chloroplast
-
C.
Ribosome
-
D.
Vacuole
Solution
Chloroplasts are the organelles responsible for photosynthesis, converting light energy into chemical energy.
Correct Answer: B — Chloroplast
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Q. Which structure is responsible for the synthesis of ATP? (2022)
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A.
Chloroplast
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B.
Mitochondria
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C.
Nucleus
-
D.
Golgi apparatus
Solution
Mitochondria are responsible for the synthesis of ATP through cellular respiration.
Correct Answer: B — Mitochondria
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Q. Which structure is responsible for the synthesis of lipids? (2021)
-
A.
Smooth endoplasmic reticulum
-
B.
Rough endoplasmic reticulum
-
C.
Golgi apparatus
-
D.
Mitochondria
Solution
The smooth endoplasmic reticulum is involved in the synthesis of lipids and detoxification processes.
Correct Answer: A — Smooth endoplasmic reticulum
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Q. Which structure is responsible for the synthesis of ribosomal RNA? (2021)
-
A.
Nucleus
-
B.
Nucleolus
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C.
Ribosome
-
D.
Endoplasmic reticulum
Solution
The nucleolus is the site within the nucleus where ribosomal RNA (rRNA) is synthesized.
Correct Answer: B — Nucleolus
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Q. Which structure is selectively permeable and regulates the entry and exit of substances in a cell?
-
A.
Cell wall
-
B.
Plasma membrane
-
C.
Nuclear membrane
-
D.
Cytoplasm
Solution
The plasma membrane is selectively permeable, allowing certain substances to pass while blocking others.
Correct Answer: B — Plasma membrane
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