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The two quantities are equal in magnitud...

The two quantities are equal in magnitude but opposite in sign

A

Pressure potential and water potential

B

Osmotic potential and osmotic pressure

C

Turgor pressure and wall pressure

D

None of the above

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "The two quantities are equal in magnitude but opposite in sign," we need to analyze the given options and determine which pair of quantities meets this criterion. ### Step-by-Step Solution: 1. **Understanding the Question**: We need to find two quantities that are equal in magnitude but have opposite signs. This means if one quantity is positive, the other must be negative, and their absolute values must be the same. 2. **Analyzing the Options**: - **Option 1: Pressure Potential and Water Potential** - Pressure potential and water potential are related but they do not have equal magnitudes. Therefore, this option is not correct. - **Option 2: Osmotic Potential and Osmotic Pressure** - Osmotic potential refers to the potential energy of water in a solution due to solute concentration, while osmotic pressure is the pressure required to prevent the flow of water into the solution. These two quantities are indeed equal in magnitude but opposite in sign. Osmotic pressure is typically considered positive, while osmotic potential is negative. Thus, this option is correct. - **Option 3: Turgor Pressure and Wall Pressure** - Turgor pressure is the pressure exerted by the fluid inside the cell against the cell wall, while wall pressure is the pressure exerted by the cell wall against the turgor pressure. They do not have opposite signs; both are positive. Hence, this option is incorrect. - **Option 4: Other Possible Pairs** - We have already evaluated the main options. The only pair that fits the criteria of being equal in magnitude but opposite in sign is osmotic potential and osmotic pressure. 3. **Conclusion**: The correct answer is **Osmotic Potential and Osmotic Pressure**. ### Final Answer: The two quantities that are equal in magnitude but opposite in sign are **Osmotic Potential and Osmotic Pressure**.
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Knowledge Check

  • The equation of a straight line passes through the point (-3,7) and makes intercepts on the axes equal in magnitude but opposite in sign is

    A
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    B
    If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.
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    If Assertion is CORRECT but Reason is INCORRECT.
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    If Assertion is INCORRECT but Reason is CORRECT.

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