Preparing for NEET? The chapter “Cell: The Unit of Life” is one of the most crucial topics in Biology. A strong grasp of cell structure, organelles, and functions can help secure higher marks. This article has compiled high-quality MCQs based on previous years’ NEET exam patterns.
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Let’s test your knowledge with multiple-choice questions (MCQs) covering all important Cell: The Unit of Life aspects.
đź“Ś MCQs on Cell: The Unit of Life for NEET
1. Introduction to the Cell
Q1. Who discovered the cell?
a) Robert Hooke
b) Anton van Leeuwenhoek
c) Rudolf Virchow
d) Matthias Schleiden
âś… Answer: a) Robert Hooke
🔍 Explanation: In 1665, Robert Hooke observed cork cells under a microscope and coined the term “cell.”
Q2. Which of the following is a characteristic feature of all cells?
a) Presence of nucleus
b) Presence of DNA
c) Presence of mitochondria
d) Presence of chloroplast
âś… Answer: b) Presence of DNA
🔍 Explanation: DNA is found in all cells, whether prokaryotic or eukaryotic, and is essential for genetic information transfer.
2. Prokaryotic and Eukaryotic Cells
Q3. Which of the following is absent in prokaryotic cells?
a) Ribosomes
b) Plasma membrane
c) Nucleus
d) DNA
âś… Answer: c) Nucleus
🔍 Explanation: Prokaryotic cells lack a true nucleus; instead, they have a nucleoid where genetic material is present.
Q4. The ribosomes of prokaryotic cells are:
a) 80S
b) 70S
c) 60S
d) 100S
âś… Answer: b) 70S
🔍 Explanation: Prokaryotic ribosomes are smaller (70S) compared to eukaryotic ribosomes (80S).
3. Cell Membrane and Cell Wall
Q5. The main function of the plasma membrane is:
a) Protein synthesis
b) Selective permeability
c) Energy production
d) Storage of nutrients
âś… Answer: b) Selective permeability
🔍 Explanation: The plasma membrane controls the movement of substances into and out of the cell, ensuring homeostasis.
Q6. The cell wall in plant cells is mainly composed of:
a) Chitin
b) Peptidoglycan
c) Cellulose
d) Lipids
âś… Answer: c) Cellulose
🔍 Explanation: Plant cell walls are primarily composed of cellulose, providing structural support and rigidity.
4. Cell Organelles and Their Functions
Q7. Which organelle is known as the “powerhouse of the cell”?
a) Golgi apparatus
b) Lysosome
c) Mitochondria
d) Endoplasmic reticulum
âś… Answer: c) Mitochondria
🔍 Explanation: Mitochondria generate ATP through cellular respiration, providing energy for cellular activities.
Q8. The rough endoplasmic reticulum (RER) is associated with:
a) Lipid synthesis
b) Protein synthesis
c) DNA replication
d) Cell division
âś… Answer: b) Protein synthesis
🔍 Explanation: The RER is studded with ribosomes, which are involved in protein synthesis.
5. Nucleus and Genetic Material
Q9. Which structure inside the nucleus is responsible for ribosome production?
a) Chromatin
b) Nucleolus
c) Nuclear envelope
d) Centriole
âś… Answer: b) Nucleolus
🔍 Explanation: The nucleolus is responsible for ribosome synthesis and assembly.
Q10. What is the function of histone proteins in eukaryotic cells?
a) Energy production
b) DNA packaging
c) Protein synthesis
d) Lipid transport
âś… Answer: b) DNA packaging
🔍 Explanation: Histone proteins help in DNA condensation to form chromatin, facilitating efficient storage and gene regulation.
6. Cell Division
Q11. Mitosis occurs in:
a) Germ cells
b) Somatic cells
c) Both germ and somatic cells
d) None of these
âś… Answer: b) Somatic cells
🔍 Explanation: Mitosis is the division of somatic cells, leading to two genetically identical daughter cells.
Q12. During which phase of the cell cycle does DNA replication occur?
a) G1 phase
b) G2 phase
c) S phase
d) M phase
âś… Answer: c) S phase
🔍 Explanation: DNA replication occurs during the S (Synthesis) phase of the cell cycle.
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Conclusion
Understanding Cell: The Unit of Life is essential for NEET Biology. This chapter covers cell structure, types, organelles, and cell division, forming the foundation of life sciences.
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Keep practicing! The more MCQs you solve, the better your understanding. 🚀
📢 FAQs
Q1. What are the most important topics in “Cell: The Unit of Life” for NEET?
A: Focus on cell structure, organelles, prokaryotic vs. eukaryotic cells, cell division, and cell membrane functions.
Q2. How can I score well in the cell biology section of NEET?
A: Revise NCERT, practice MCQs daily, use mnemonics, and understand diagrams. Coaching from platforms like NEET World can also help.
Q3. What is the weightage of the “Cell” chapter in NEET?
A: Typically, 6-8% of Biology questions in NEET come from Cell Biology.
Q4. What are some common mistakes students make in this chapter?
A: Confusion between prokaryotic and eukaryotic cells, organelle functions, and phases of cell division.
Q5. Where can I find more NEET-level MCQs for practice?
A: You can explore NEET World, NCERT-based guides, and online mock tests.
