The Fundamental Unit of Life | MCQ Set 2 | Class 9 Science

1. What is the primary function of the plasma membrane?

A) To provide structural support to the cell. B) To control the passage of substances into and out of the cell. C) To synthesize proteins. D) To store waste products.

2. In osmosis, how does water typically move across a selectively permeable membrane?

A) From a region of lower water concentration to a region of higher water concentration. B) From a region of higher solute concentration to a region of lower solute concentration. C) From a region of higher water concentration to a region of lower water concentration. D) Only if energy is expended by the cell.

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You are on Chapter 5: The Fundamental Unit of Life (Quiz for Class 9 Science) Set 2

3. What term describes a solution having a lower concentration of water (and higher solute concentration) than the cell, causing the cell to lose water by osmosis?

A) Isotonic solution B) Hypotonic solution C) Hypertonic solution D) Aqueous solution

4. What phenomenon occurs when a living plant cell loses water through osmosis, causing shrinkage or contraction of the protoplast away from the cell wall?

A) Diffusion B) Endocytosis C) Plasmolysis D) Exocytosis

5. Which part of the cell is referred to as the 'brain' of the cell, controlling all its activities?

A) Cytoplasm B) Cell wall C) Nucleus D) Mitochondria

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6. What is the nuclear membrane's characteristic that allows transfer of material between the nucleoplasm and cytoplasm?

A) It is single-layered. B) It has pores. C) It is impermeable. D) It is highly rigid.

You are on Chapter 5: The Fundamental Unit of Life (Quiz for Class 9 Science) Set 2

7. What are the thread-like structures visible during cell division, made of DNA and protein, located in the nucleus?

A) Nucleolus B) Chromatin C) Chromosomes D) Genes

8. What is the main component of genes, which are functional segments of chromosomes?

A) Protein B) RNA C) DNA D) Lipids

9. What type of organisms lack a well-defined nuclear region and typically have genetic material that is not enclosed by a nuclear membrane?

A) Eukaryotic organisms B) Prokaryotic organisms C) Multicellular organisms D) Animal cells

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10. In prokaryotic cells, the undefined nuclear region containing only nucleic acid is known as what?

A) Nucleus B) Nucleolus C) Nucleoid D) Cytoplasm

Chapter 5: The Fundamental Unit of Life
Class 9 Science | MCQ Quiz Set 2

Exam oriented Questions for CBSE Class 9 Science

1. What is the primary function of the plasma membrane?

2. In osmosis, how does water typically move across a selectively permeable membrane?

3. What term describes a solution having a lower concentration of water (and higher solute concentration) than the cell, causing the cell to lose water by osmosis?

4. What phenomenon occurs when a living plant cell loses water through osmosis, causing shrinkage or contraction of the protoplast away from the cell wall?

5. Which part of the cell is referred to as the 'brain' of the cell, controlling all its activities?

6. What is the nuclear membrane's characteristic that allows transfer of material between the nucleoplasm and cytoplasm?

7. What are the thread-like structures visible during cell division, made of DNA and protein, located in the nucleus?

8. What is the main component of genes, which are functional segments of chromosomes?

9. What type of organisms lack a well-defined nuclear region and typically have genetic material that is not enclosed by a nuclear membrane?

10. In prokaryotic cells, the undefined nuclear region containing only nucleic acid is known as what?

Quiz Results

Chapter 5: The Fundamental Unit of Life Quiz:

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Chapter 5: The Fundamental Unit of LifeClass 9 Science | MCQ Quiz Set 2

Exam oriented Questions for CBSE Class 9 Science

1. What is the primary function of the plasma membrane? Read

2. In osmosis, how does water typically move across a selectively permeable membrane? Read

3. What term describes a solution having a lower concentration of water (and higher solute concentration) than the cell, causing the cell to lose water by osmosis? Read

4. What phenomenon occurs when a living plant cell loses water through osmosis, causing shrinkage or contraction of the protoplast away from the cell wall? Read

5. Which part of the cell is referred to as the 'brain' of the cell, controlling all its activities? Read

6. What is the nuclear membrane's characteristic that allows transfer of material between the nucleoplasm and cytoplasm? Read

7. What are the thread-like structures visible during cell division, made of DNA and protein, located in the nucleus? Read

8. What is the main component of genes, which are functional segments of chromosomes? Read

9. What type of organisms lack a well-defined nuclear region and typically have genetic material that is not enclosed by a nuclear membrane? Read

10. In prokaryotic cells, the undefined nuclear region containing only nucleic acid is known as what? Read

Quiz Results

Chapter 5: The Fundamental Unit of Life Quiz:

Was this page helpful?

Chapter 5: The Fundamental Unit of Life
Class 9 Science | MCQ Quiz Set 2

1. What is the primary function of the plasma membrane?

2. In osmosis, how does water typically move across a selectively permeable membrane?

3. What term describes a solution having a lower concentration of water (and higher solute concentration) than the cell, causing the cell to lose water by osmosis?

4. What phenomenon occurs when a living plant cell loses water through osmosis, causing shrinkage or contraction of the protoplast away from the cell wall?

5. Which part of the cell is referred to as the 'brain' of the cell, controlling all its activities?

6. What is the nuclear membrane's characteristic that allows transfer of material between the nucleoplasm and cytoplasm?

7. What are the thread-like structures visible during cell division, made of DNA and protein, located in the nucleus?

8. What is the main component of genes, which are functional segments of chromosomes?

9. What type of organisms lack a well-defined nuclear region and typically have genetic material that is not enclosed by a nuclear membrane?

10. In prokaryotic cells, the undefined nuclear region containing only nucleic acid is known as what?