QQuestionBiology
QuestionBiology
Is diffusion an active or passive transport of particles across the cell membrane?
12 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1:I'll solve this problem following the specified formatting guidelines:
Step 2:: Understanding Transport Mechanisms
Diffusion is a passive transport mechanism. In passive transport, molecules move across the cell membrane without requiring energy expenditure from the cell.
Step 3:: Key Characteristics of Diffusion
- Molecules move from an area of high concentration to an area of low concentration - This movement follows the concentration gradient - No cellular energy (ATP) is required to facilitate the process
Step 4:: Defining Passive Transport
Passive transport includes mechanisms where molecules move spontaneously across the membrane: - Diffusion - Osmosis - Facilitated diffusion
Step 5:: Distinguishing from Active Transport
Active transport requires: - Cellular energy (ATP) - Protein carriers - Movement against the concentration gradient
Step 6:: Confirming the Classification
Diffusion is definitively a passive transport mechanism because: - Molecules move naturally from high to low concentration - No cellular energy is expended - Movement occurs due to random molecular motion
Final Answer
Diffusion is a passive transport mechanism for moving particles across the cell membrane.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students