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- 1. Multiple Choice
Ribosomes are the centres of
Respiration
Fat synthesis
Protein synthesis
Photosynthesis
- 2. Multiple Choice
Which statement is incorrect with respect to multi-cellular organisms?
Many cells aggregate in a single body
Various cells coordinate to form a functional organism.
Every multi-cellular organism originates from a single cell.
Every cell in the body is responsible to carry out all the functions of the body.
- 3. Multiple Choice
Which cell organelle provides the pathway for the distribution of nuclear material?
Ribosomes
Endoplasmic reticulum
Golgi apparatus
Vacuole
- 4. Multiple Choice
In which case does a single cell constitute a whole organism?
Mucor
Chlamydomonas
Spirogyra
Sargassum
- 5. Multiple Choice
The solute concentration is higher in
Hypotonic solution
Isotonic solution
Hypertonic solution
None of these
- 6. Multiple Choice
Which of the following substances are not stored in vacuoles?
Amino acids
Sugars
DNA
Proteins
- 7. Multiple Choice
Which is not a postulate of cell theory?
All organisms are composed of cells.
The fluid substance of the cell is protoplasm.
Cell is the basic unit of life.
All cells arise from pre-existing cells.
- 8. Multiple Choice
The test tubes A, B and C are taken with food samples of dal, mustard and rice respectively in powdered form. On adding iodine solution the black colour is observed in:
Test tube A
Test tube B
Test tube C
None of these
- 9. Multiple Choice
If dried apricots are initially placed in plain water for some time and then into a concentrated solution of sugar, they will:
Initially shrink and then swell
Initially swell and then shrink
Initially swell and then burst
Burst
- 10. Multiple Choice
The fine roots of plants absorb water from the soil through the process of
Pinocytosis
Endocytosis
Osmosis
Diffusion
- 11. Multiple Choice
Plastids that are colorless or white in color are called
Chloroplasts
Chromoplasts
Leucoplasts
Etioplasts
- 12. Multiple Choice
Which of the following is absent in prokaryotes?
Cell membrane
Cytoplasm
Mitochondria
Nucleoid
- 13. Multiple Choice
What is the relation between lysosomes and endoplasmic reticulum?
The enzymes of lysosomes are made by rough endoplasmic reticulum.
Lysosomes and endoplasmic reticulum carry out same functions.
The enzymes of lysosomes are made by smooth endoplasmic reticulum.
The enzymes of endoplasmic reticulum are made by lysosomes.
- 14. Multiple Choice
Which microscope made it possible to observe the complex structure of cell and its organelles?
Light Microscope
Simple Microscope
Electron Microscope
Compound Microscope
- 15. Multiple Choice
Which of these is acellular?
Viruses
Bacteria
Protozoans
Fungi
- 16. Multiple Choice
Cell wall of plants is mainly composed of
Chitin
cellulose
lipids
lignin
- 17. Multiple Choice
The diagram shows a magnified view of a particular part of a human cell. Name the part labelled X
Ribosome
Chromosome
Nucleoplasm
Mitochondrion
- 18. Multiple Choice
Which cell organelle is not bound by a unit membrane?
Lysosome
Ribosome
Endoplasmic reticulum
Nucleus
- 19. Multiple Choice
What is ‘autolysis’?
Self-replication
Self-digestion
Self-food producers
Food decomposer
- 20. Multiple Choice
Which of the following cell organelles can make complex sugars from simple sugars?
Ribosomes
Lysosomes
Endoplasmic reticulum
Golgi apparatus
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