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Cell — Structure and Functions — Class 8 CBSE Science MCQs with Solutions
Free Class 8 CBSE Science Cell — Structure and Functions MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
The control centre of the cell is the:
A. cytoplasm
B. nucleus ✓ Correct
C. cell wall
D. vacuole
Solution: The nucleus directs cell activities.
Q2 — easy
Which structure is found in plant cells but NOT in animal cells?
A. Nucleus
B. Cell wall ✓ Correct
C. Cytoplasm
D. Cell membrane
Solution: Only plant cells have a rigid cell wall.
Q3 — easy
Organisms made of a single cell are called:
A. multicellular
B. unicellular ✓ Correct
C. tissues
D. organs
Solution: Uni means one.
Q4 — hard
Amoeba changes shape frequently because it:
A. has a rigid cell wall
B. has no fixed cell wall and forms pseudopodia ✓ Correct
C. is multicellular
D. has many nuclei
Solution: Its flexible membrane forms pseudopodia.
Q5 — hard
Which statement about the cell theory is correct?
A. Cells arise from non-living matter
B. All living organisms are made of cells and cells come from pre-existing cells ✓ Correct
C. Only plants have cells
D. Cells cannot divide
Solution: That is the modern cell theory.
Q6 — hard
White blood cells differ from red blood cells because WBCs:
A. have no nucleus
B. have a nucleus ✓ Correct
C. carry oxygen
D. are green
Solution: Mature human RBCs lack a nucleus; WBCs have one.
Q7 — medium
Which cell has the largest single vacuole?
A. animal cell
B. plant cell ✓ Correct
C. bacterial cell
D. nerve cell
Solution: Mature plant cells have one large central vacuole.
Q8 — medium
The thread-like structures in the nucleus that carry genes are:
A. ribosomes
B. chromosomes ✓ Correct
C. plastids
D. lysosomes
Solution: Chromosomes carry hereditary information.
Q9 — medium
The cell membrane is described as selectively permeable because it:
A. allows everything in
B. blocks everything
C. allows only certain substances to pass ✓ Correct
D. is made of cellulose
Solution: It controls what enters and leaves.