Class 9 Biology · Chapter 3 · Test 4
Specialization and Stem Cells
23 MCQs on Specialized Cells, Mesophyll Cells, Epidermal Cells, Muscle Cells, Neurons, Red Blood Cells, Liver Cells, Division of Labour, and Stem Cells
23 questions · 20 min · 23 marks
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Sample questions
The first 5 of 23. Try each one, then tap to see the answer.
Question 1
What happens when cells become specialized?
- AThey develop structures and functions suited to particular roles
- BThey lose all organelles
- CThey become viruses
- DThey stop carrying out functions
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Answer: A
Specialized cells develop structures and functions suited to their particular roles.
Question 2
What is cell differentiation?
- AThe process by which cells develop specialized structures and functions
- BThe process of producing energy
- CThe digestion of damaged organelles
- DThe movement of water into a cell
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Answer: A
Differentiation is the process through which cells develop specialized structures and functions.
Question 3
Where are mesophyll cells mainly found?
- AIn green leaves
- BIn bones
- CIn blood vessels
- DIn the nervous system
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Answer: A
Mesophyll cells are green cells found in leaves.
Question 4
What is the main function of mesophyll cells?
- APhotosynthesis
- BProtection from pathogens
- CCarrying nerve impulses
- DTransporting oxygen
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Answer: A
Mesophyll cells carry out photosynthesis and contain many chloroplasts.
Question 5
Why do mesophyll cells contain many chloroplasts?
- ATo absorb and use light energy for photosynthesis
- BTo digest wastes
- CTo carry oxygen
- DTo produce nerve impulses
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Answer: A
Many chloroplasts allow mesophyll cells to perform photosynthesis efficiently.
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