Cell Structure and Function
Q. What is the function of ribosomes in plant cells?
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A.
Energy production
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B.
Photosynthesis
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C.
Protein synthesis
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D.
Cell division
Solution
Ribosomes are responsible for protein synthesis, translating mRNA into polypeptide chains.
Correct Answer: C — Protein synthesis
Q. What is the function of the Golgi apparatus in plant cells?
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A.
Protein modification and packaging
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B.
Photosynthesis
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C.
Cell division
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D.
Storage of water
Solution
The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.
Correct Answer: A — Protein modification and packaging
Q. What is the main component of the plant cell wall?
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A.
Cellulose
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B.
Chitin
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C.
Lignin
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D.
Pectin
Solution
Cellulose is the primary structural component of the plant cell wall, providing rigidity and strength.
Correct Answer: A — Cellulose
Q. What is the primary function of chloroplasts in plant cells?
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A.
Energy production
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B.
Photosynthesis
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C.
Cell division
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D.
Protein synthesis
Solution
Chloroplasts are the organelles responsible for photosynthesis, converting light energy into chemical energy.
Correct Answer: B — Photosynthesis
Q. What is the primary function of the Golgi apparatus in plant cells?
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A.
Energy production
-
B.
Modification and packaging of proteins
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C.
Photosynthesis
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D.
Cell division
Solution
The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.
Correct Answer: B — Modification and packaging of proteins
Q. What is the primary function of the plasma membrane in plant cells?
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A.
Energy production
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B.
Regulating transport
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C.
Photosynthesis
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D.
Cell division
Solution
The plasma membrane regulates the transport of substances in and out of the cell, maintaining homeostasis.
Correct Answer: B — Regulating transport
Q. What is the role of the endoplasmic reticulum in plant cells?
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A.
Transport of materials
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B.
Photosynthesis
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C.
Cell division
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D.
Storage of nutrients
Solution
The endoplasmic reticulum is involved in the transport of materials within the cell and the synthesis of proteins and lipids.
Correct Answer: A — Transport of materials
Q. Which organelle is involved in the degradation of waste materials in plant cells?
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A.
Lysosome
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B.
Chloroplast
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C.
Vacuole
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D.
Mitochondrion
Solution
Lysosomes contain enzymes that break down waste materials and cellular debris in plant cells.
Correct Answer: A — Lysosome
Q. Which organelle is involved in the detoxification of harmful substances in plant cells?
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A.
Lysosome
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B.
Peroxisome
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C.
Vacuole
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D.
Chloroplast
Solution
Peroxisomes are involved in the detoxification of harmful substances and the breakdown of fatty acids in plant cells.
Correct Answer: B — Peroxisome
Q. Which organelle is known as the powerhouse of the cell?
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A.
Ribosome
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B.
Mitochondrion
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C.
Chloroplast
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D.
Endoplasmic reticulum
Solution
Mitochondria are known as the powerhouse of the cell because they generate ATP through cellular respiration.
Correct Answer: B — Mitochondrion
Q. Which structure in plant cells is responsible for packaging and distributing proteins?
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A.
Golgi apparatus
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B.
Lysosome
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C.
Nucleus
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D.
Vacuole
Solution
The Golgi apparatus modifies, sorts, and packages proteins for secretion or delivery to other organelles.
Correct Answer: A — Golgi apparatus
Q. Which structure in plant cells is responsible for the synthesis of ATP?
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A.
Chloroplast
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B.
Mitochondrion
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C.
Nucleus
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D.
Golgi apparatus
Solution
Mitochondria are responsible for synthesizing ATP through the process of cellular respiration.
Correct Answer: B — Mitochondrion
Q. Which structure in plant cells is selectively permeable and regulates the movement of substances?
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A.
Cell wall
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B.
Plasma membrane
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C.
Nucleus
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D.
Vacuole
Solution
The plasma membrane is selectively permeable, controlling the entry and exit of substances in and out of the cell.
Correct Answer: B — Plasma membrane
Q. Which structure is responsible for maintaining turgor pressure in plant cells?
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A.
Cell wall
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B.
Chloroplast
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C.
Vacuole
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D.
Nucleus
Solution
The vacuole stores water and helps maintain turgor pressure, which is essential for plant structure and support.
Correct Answer: C — Vacuole
Q. Which structure is responsible for the synthesis of ATP in plant cells?
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A.
Chloroplast
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B.
Mitochondrion
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C.
Nucleus
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D.
Golgi apparatus
Solution
Mitochondria synthesize ATP through the process of cellular respiration, providing energy for cellular activities.
Correct Answer: B — Mitochondrion
Q. Which type of cell is responsible for the transport of water in plants?
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A.
Phloem
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B.
Xylem
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C.
Parenchyma
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D.
Collenchyma
Solution
Xylem cells are specialized for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer: B — Xylem
Q. Which type of cell is responsible for transporting water in plants?
-
A.
Phloem
-
B.
Xylem
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C.
Parenchyma
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D.
Collenchyma
Solution
Xylem cells are responsible for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer: B — Xylem
Q. Which type of plant cell is primarily involved in photosynthesis?
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A.
Parenchyma
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B.
Collenchyma
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C.
Sclerenchyma
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D.
Xylem
Solution
Parenchyma cells, especially those in the leaves, contain chloroplasts and are primarily involved in photosynthesis.
Correct Answer: A — Parenchyma
Q. Which type of plant cell is primarily involved in the transport of water and minerals?
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A.
Phloem
-
B.
Xylem
-
C.
Parenchyma
-
D.
Collenchyma
Solution
Xylem cells are specialized for the transport of water and dissolved minerals from the roots to the rest of the plant.
Correct Answer: B — Xylem
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