Cell Organelles — Homi Bhabha Exam Biology MCQs with Solutions
Free Homi Bhabha Exam Biology Cell Organelles MCQs with step-by-step solutions (6 questions). Part of Cell Biology & Tissues. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Cell Organelles · medium · theory
The basic structural and functional unit of life is the:
A. molecule
B. tissue
C. cell ✓ Correct
D. organ
Solution: The cell is the smallest unit that can carry out all life processes.
Q2 — Cell Organelles · medium · theory
The organelle known as the "powerhouse of the cell" is the:
A. nucleus
B. vacuole
C. ribosome
D. mitochondrion ✓ Correct
Solution: Mitochondria release energy (ATP) through respiration, so they are called the powerhouse of the cell.
Q3 — Cell Organelles · hard · theory
The site of protein synthesis in a cell is the:
A. vacuole
B. chloroplast
C. lysosome
D. ribosome ✓ Correct
Solution: Ribosomes assemble amino acids into proteins.
Q4 — Cell Organelles · medium · theory
The organelle that controls all the activities of the cell is the:
A. nucleus ✓ Correct
B. mitochondrion
C. cytoplasm
D. cell membrane
Solution: The nucleus directs cell activities and contains the genetic material.
Q5 — Cell Organelles · hard · theory
The green organelle in plant cells where photosynthesis occurs is the:
A. ribosome
B. nucleus
C. chloroplast ✓ Correct
D. mitochondrion
Solution: Chloroplasts contain chlorophyll and carry out photosynthesis.
Q6 — Cell Organelles · medium · theory
The scientist who first observed and named cells (in cork) was:
A. Charles Darwin
B. Louis Pasteur
C. Robert Hooke ✓ Correct
D. Gregor Mendel
Solution: Robert Hooke observed cork cells under a microscope in 1665 and coined the term "cell".