“The Fundamental Unit of Life MCQ Science Class 9” is a comprehensive multiple-choice question resource designed for ninth-grade students. It covers the essential concepts and topics related to the fundamental unit of life, including cell structure, cell organelles, and their functions. With carefully crafted questions, this resource aims to enhance students’ understanding of cell biology and prepare them for assessments. It provides an interactive learning experience that encourages critical thinking and knowledge retention in a user-friendly format.
MCQ Questions for Class 9 Science Chapter-5 : The Fundamental Unit of Life with Answers
Q1. Which of the following scientists coined the term cell?
1. Robert Brown
2. Albert Einstein
3. Newton
4. Robert Hooke
Ans. Robert Hooke
Q2. The largest cell in the human body is?
1. Muscular cell
2. Cell wall
3. Nerve cell
4. liver cell
Ans. Nerve cell
Q3. iodine solution is used?
1. Stain onion peel cell
2. Stain human cheek cell
3. Mount onion peel cell
4. Monut animal cheek cell
Ans. Stain onion peel cell
Q4. The barrier between the protoplasm and the outer environment in an animal cell is?
1. Animal cell
2. Plasma membrane
3. Plant cell
4. nuclear membrane
Ans. Plasma membrane
Q5. What Makes to withstand greater charges in the surrounding medium than animal cells?
1. cell wall
2. vacuoles
3. Nuclear membrane
4. tonoplast
Ans. cell wall
Q6. The normal cell plant in hypotonic solution shall?
1. swells up
2. plastids
3. burst due to over swelling
4. shows crenation
Ans. burst due to over swelling
Q7. Which of the following maintains the basic structure (shape) of the plant cell after shrinkage of the cell content during plasmolysis?
1. Nucleus membrane
2. cell wall
3. plastids
4. vacuole
Ans. cell wall
Q8. Plasmolysis occurs due to
1. Endosmosis
2. Absorption 3. Nerve cell 4. Exosmosis
Ans.Exosmosis
Q9. Who coined the term protoplasm for the fluid substance of the cell?
1. J.E.purkinje
2. leeuwenhoek
3. Robert hooke
4. W.flemming
Ans. J.E.purkinje
Q10.Ribosomes are the centre for?
1. Fat synthesis
2. sugar synthesis
3. Protein synthesis
4. Search synthesis
Ans. Protein synthesis
Q11. The complete breakdown of glucose in presence of oxygen in the cell takes place?
1. Mitochondria
2. Chloroplast
3. Ribosome
4. lysosomes
Ans. Mitochondria
Q12. Lysosomes stores?
1. DNA
2. Fats
3. RNA
4. Hydrolytic enzymes
Ans.Hydrolytic enzymes
Q13. Do plant cells have large vacuoles each surrounded by a membrane known as?
1. Plasma membrane
2. cell wall
3. nucleus membrane
4. muscle cell
Ans. cell wall
Q15. Which molecules of a cell are known as the energy currency of the cell?
1. DNA
2. RNA
3. ATP
4. SER
Ans.ATP
Q16. ATP stands for?
1. Adenosine triphosphate
2. Amino triphosphate
3. Amino tri- glycerophosphate
4. Adenosme tri- phosphoglyceride
Ans. Adenosine triphosphate
Q17. Which of the cell organical is involved in the formation of lysosomes?
1. Mitochondria
2. Nucleus membrane
3. Plasma membrane
4. Golgi apparatus
Ans. Golgi apparatus
Q18. Which organic colour of the cell plays a crucial role in detoxifying many poisons and drugs?
1.RER
2.SER
3.RNA
4.DNA
Ans.SER
Q19. Which of the following organelles possesses its own DNA and ribosomes ?
1. Mitochondria
2. Vacuole
3. Muscle cell
4. liver cell
Ans. Mitochondria
Q20. Stroma is present in?
1. Mitochondria
2. leucoplast
3. Golgi apparatus
4. lysosomes
Ans. leucoplast
Q21. When did Robert Hooke Discover the cell?
1.1665
2.1995
3.1885
4.1775
Ans.1665
Q22. Which organelle is responsible for the production of energy in a cell?
a) Nucleus
b) Mitochondria
c) Golgi apparatus
d) Endoplasmic reticulum
Answer: b) Mitochondria
Q23. Which cell organelle is responsible for protein synthesis?
a) Nucleus
b) Golgi apparatus
c) Ribosomes
d) Vacuole
Answer: c) Ribosomes
Q24. What is the control center of a cell?
a) Nucleus
b) Cell membrane
c) Chloroplast
d) Lysosome
Answer: a) Nucleus
Q25. Which type of cell lacks a nucleus?
a) Animal cell
b) Plant cell
c) Prokaryotic cell
d) Eukaryotic cell
Answer: c) Prokaryotic cell
Q26. Which organelle is responsible for detoxification and metabolism of drugs and toxic substances?
a) Mitochondria
b) Lysosome
c) Endoplasmic reticulum
d) Vacuole
Answer: c) Endoplasmic reticulum
Q27. Which organelle is responsible for storing water, waste, and nutrients in plant cells?
a) Chloroplast
b) Golgi apparatus
c) Vacuole
d) Nucleus
Answer: c) Vacuole
Q28. Which cell organelle is responsible for maintaining cell shape and providing mechanical support?
a) Cell membrane
b) Nucleus
c) Cytoskeleton
d) Chloroplast
Answer: c) Cytoskeleton
Q29. Which organelle contains chlorophyll and is responsible for photosynthesis in plant cells?
a) Vacuole
b) Golgi apparatus
c) Chloroplast
d) Endoplasmic reticulum
Answer: c) Chloroplast
Q30. Which cell organelle is known as the “powerhouse” of the cell?
a) Golgi apparatus
b) Lysosome
c) Nucleus
d) Mitochondria
Answer: d) Mitochondria
Q31. Which type of cell possesses a cell wall?
a) Animal cell
b) Plant cell
c) Prokaryotic cell
d) Eukaryotic cell
Answer: b) Plant cell