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1. The thread-like structure visible in a non-dividing nucleus is—
A. Chromatin material
B. Chromosomes
C. Centriole
D. Ribosome
2. Cells lacking a well-defined nucleus are called—
A. Eukaryotic
B. Prokaryotic
C. Unicellular
D. Multicellular
3. The fluid content inside the cell membrane is known as—
A. Protoplasm
B. Cytoplasm
C. Chromatin
D. Nucleoplasm
4. Viruses are considered non-living because they—
A. Lack DNA
B. Lack membranes
C. Cannot move
D. Lack protein
5. The cell organelle that forms a network of membranes for transport is—
A. Golgi apparatus
B. Endoplasmic reticulum
C. Mitochondria
D. Plastid
6. Rough Endoplasmic Reticulum appears rough due to presence of—
A. Vacuoles
B. Ribosomes
C. Lipids
D. Cilia
7. The site of protein synthesis in the cell is—
A. Lysosomes
B. Ribosomes
C. Mitochondria
D. Vacuoles
8. Smooth Endoplasmic Reticulum helps in synthesis of—
A. Proteins
B. Lipids
C. DNA
D. Enzymes only
9. The process of forming the cell membrane from proteins and lipids is called—
A. Photosynthesis
B. Membrane biogenesis
C. Cell division
D. Endocytosis
10. The organelle that stores, modifies and packages materials is—
A. Golgi apparatus
B. ER
C. Lysosome
D. Ribosome
11. Lysosomes contain—
A. Ribosomes
B. Digestive enzymes
C. DNA molecules
D. Chlorophyll
12. Lysosomes are called “suicide bags” because—
A. They produce energy
B. They destroy foreign substances and damaged cells
C. They store food
D. They form membranes
13. Mitochondria are called the powerhouses of the cell because they—
A. Store energy
B. Release energy in the form of ATP
C. Produce protein
D. Help in cell division
14. Mitochondria possess their own—
A. DNA and ribosomes
B. Cell wall
C. RNA only
D. Lysosomes
15. Plastids are found only in—
A. Animal cells
B. Plant cells
C. Bacteria
D. Viruses
16. Chloroplasts contain the pigment—
A. Carotene
B. Chlorophyll
C. Xanthophyll
D. Haemoglobin
17. The colorless plastids used for storage are called—
A. Chromoplasts
B. Leucoplasts
C. Chloroplasts
D. Protoplasts
18. Vacuoles in animal cells are generally—
A. Large
B. Absent
C. Small
D. Very many large ones
19. Plant vacuoles are filled with—
A. Water only
B. Air
C. Cell sap
D. Cytoplasm
20. Vacuoles help to maintain—
A. Respiration
B. Photosynthesis
C. Turgidity and rigidity
D. Cell division
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