The Question is from neet-botany plant-physiology faciliated-diffusion, and it was created by the author NISHANTH

Question

Which factor does NOT influence the rate of facilitated diffusion?

NISHANTH · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Facilitated diffusion
 **Related Topics**: Membrane transport, passive transport, carrier proteins
 **Prerequisites**: Understanding of concentration gradients and membrane proteins.
## SOLUTION PATHWAY
**Given Information**:
  The question asks which factor does NOT affect the rate of facilitated diffusion.
  Options: Concentration gradient, number of carrier proteins, ATP amount, temperature.
**Method & Steps**:
 1. Analyze each option's influence on facilitated diffusion.
  Reasoning: Facilitated diffusion is a passive transport process that relies on carrier proteins to move substances across the membrane down their concentration gradient.  Temperature affects the rate of molecular movement, thus influencing the rate of facilitated diffusion.
 2. Identify the factor that does not directly impact the rate.
  Working:  The concentration gradient drives the movement, more carrier proteins increase the transport capacity, and temperature affects the rate of diffusion. ATP is not required for facilitated diffusion, as it is a passive process.
 3. Determine the correct answer.
  Result: The amount of ATP available (option C) does not influence the rate of facilitated diffusion.
  Verification: Facilitated diffusion is a passive process, meaning it doesn't require energy from ATP hydrolysis. The rate is determined by the concentration gradient, the number of carrier proteins, and temperature.
 ## OPTION ANALYSIS
A :x: The concentration gradient directly affects the rate. A steeper gradient leads to faster diffusion.
B :x: The number of carrier proteins in the membrane is directly proportional to the rate. More proteins mean higher transport capacity.
C ✓: The amount of ATP is not involved in facilitated diffusion. It's a passive process, relying on the kinetic energy of molecules.
D :x: Temperature affects the kinetic energy of molecules and thus influences the rate of diffusion. Higher temperatures generally lead to faster rates.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing facilitated diffusion with active transport: Active transport requires ATP, while facilitated diffusion does not.
  2.Overlooking the role of temperature: Temperature affects the kinetic energy of molecules, thus influencing the rate of both simple and facilitated diffusion.
 **Quick Tips**:
  1.Remember that facilitated diffusion is a passive process driven by the concentration gradient and doesn't require energy input.
  2.Focus on the definition of facilitated diffusion and the factors directly involved in its mechanism.

NISHANTH · Answer

The concentration gradient of the transported substance

NISHANTH · Answer

The number of carrier proteins in the membrane

NISHANTH · Answer

The correct Option is "The amount of ATP available"

NISHANTH · Answer

The temperature

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