Grade 9 Exam > Grade 9 Questions > Choose the correctly matched pair.a)Hypertoni...
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Choose the correctly matched pair.
- a)Hypertonic solution - Cell swells up
- b)Hypotonic solution - Cell shrinks
- c)Isotonic solution - No net movement of water
- d)Diffusion - Movement of water molecules
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Choose the correctly matched pair.a)Hypertonic solution - Cell swells ...
- Option A: Hypertonic solution - Cell swells up
Incorrect. In a hypertonic solution, the outside solution has a higher solute concentration than inside the cell, causing the cell to lose water and shrink, not swell up.
- Option B: Hypotonic solution - Cell shrinks
Incorrect. In a hypotonic solution, the outside solution has a lower solute concentration than inside the cell, causing the cell to gain water and swell up, not shrink.
- Option C: Isotonic solution - No net movement of water
Correct. In an isotonic solution, the concentration of solutes outside the cell is the same as inside the cell, resulting in no net movement of water across the cell membrane. Thus, the cell maintains its shape and size.
- Option D: Diffusion - Movement of water molecules
Incorrect. Diffusion is the movement of molecules (excluding water molecules) from a region of higher concentration to a region of lower concentration. The movement of water molecules specifically through a selectively permeable membrane is known as osmosis.
Incorrect. In a hypertonic solution, the outside solution has a higher solute concentration than inside the cell, causing the cell to lose water and shrink, not swell up.
- Option B: Hypotonic solution - Cell shrinks
Incorrect. In a hypotonic solution, the outside solution has a lower solute concentration than inside the cell, causing the cell to gain water and swell up, not shrink.
- Option C: Isotonic solution - No net movement of water
Correct. In an isotonic solution, the concentration of solutes outside the cell is the same as inside the cell, resulting in no net movement of water across the cell membrane. Thus, the cell maintains its shape and size.
- Option D: Diffusion - Movement of water molecules
Incorrect. Diffusion is the movement of molecules (excluding water molecules) from a region of higher concentration to a region of lower concentration. The movement of water molecules specifically through a selectively permeable membrane is known as osmosis.
Most Upvoted Answer
Choose the correctly matched pair.a)Hypertonic solution - Cell swells ...
HYPOTONIC CELL SWELLS
HYPERTONIC CELL SHRINKS
DIFFUSION WRONG INFO GIVEN
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Community Answer
Choose the correctly matched pair.a)Hypertonic solution - Cell swells ...
Understanding Solutions and Cell Behavior
When discussing the effects of different types of solutions on cells, it is essential to understand the definitions of hypertonic, hypotonic, and isotonic solutions, as well as how they impact cell volume.
Isotonic Solution - Correct Match
- An isotonic solution has the same solute concentration as the cytoplasm of the cell.
- This results in no net movement of water into or out of the cell.
- The cell maintains its shape and volume, leading to a stable environment.
Hypertonic Solution - Incorrect Match
- A hypertonic solution has a higher solute concentration than the inside of the cell.
- This causes water to move out of the cell, leading to cell shrinkage (crenation).
Hypotonic Solution - Incorrect Match
- A hypotonic solution has a lower solute concentration than the cytoplasm.
- Water moves into the cell, causing it to swell and potentially burst (lysis).
Diffusion - Incorrect Match
- Diffusion refers to the movement of solute molecules from an area of higher concentration to an area of lower concentration.
- It is not specifically about the movement of water, which is defined as osmosis.
Conclusion
The correct pair is option 'C' because, in an isotonic solution, there is no net movement of water, and the cell remains stable. Understanding these concepts is crucial for grasping how cells interact with their environment, particularly in biological and medical contexts.
When discussing the effects of different types of solutions on cells, it is essential to understand the definitions of hypertonic, hypotonic, and isotonic solutions, as well as how they impact cell volume.
Isotonic Solution - Correct Match
- An isotonic solution has the same solute concentration as the cytoplasm of the cell.
- This results in no net movement of water into or out of the cell.
- The cell maintains its shape and volume, leading to a stable environment.
Hypertonic Solution - Incorrect Match
- A hypertonic solution has a higher solute concentration than the inside of the cell.
- This causes water to move out of the cell, leading to cell shrinkage (crenation).
Hypotonic Solution - Incorrect Match
- A hypotonic solution has a lower solute concentration than the cytoplasm.
- Water moves into the cell, causing it to swell and potentially burst (lysis).
Diffusion - Incorrect Match
- Diffusion refers to the movement of solute molecules from an area of higher concentration to an area of lower concentration.
- It is not specifically about the movement of water, which is defined as osmosis.
Conclusion
The correct pair is option 'C' because, in an isotonic solution, there is no net movement of water, and the cell remains stable. Understanding these concepts is crucial for grasping how cells interact with their environment, particularly in biological and medical contexts.
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Choose the correctly matched pair.a)Hypertonic solution - Cell swells upb)Hypotonic solution - Cell shrinksc)Isotonic solution - No net movement of waterd)Diffusion - Movement of water moleculesCorrect answer is option 'C'. Can you explain this answer? for Grade 9 2025 is part of Grade 9 preparation. The Question and answers have been prepared according to the Grade 9 exam syllabus. Information about Choose the correctly matched pair.a)Hypertonic solution - Cell swells upb)Hypotonic solution - Cell shrinksc)Isotonic solution - No net movement of waterd)Diffusion - Movement of water moleculesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Grade 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Choose the correctly matched pair.a)Hypertonic solution - Cell swells upb)Hypotonic solution - Cell shrinksc)Isotonic solution - No net movement of waterd)Diffusion - Movement of water moleculesCorrect answer is option 'C'. Can you explain this answer?.
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