Question

Which of the following statements about transport through the plasma membrane of a cell is correct? (a) Both passive and active transport require the input of energy. (b) Passive transport does not require the input of energy, and active transport does. (c) Passive transport does require the input of energy, and active transport does not. (d) Neither active nor passive transport requires the input of energy.

Name: Problem 8, Chapter 4: Biology Now
Uploaded: 2021-09-08T04:40:51-08:00
Duration: 3 min 19 s
Channel: Sana Riaz

   Which of the following statements about transport through the plasma membrane of a cell is correct?
(a) Both passive and active transport require the input of energy.
(b) Passive transport does not require the input of energy, and active transport does.
(c) Passive transport does require the input of energy, and active transport does not.
(d) Neither active nor passive transport requires the input of energy.

Biology Now

Anne Houtman; Megan… 2nd Edition

Chapter 4, Problem 8

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Solved by Expert Sana Riaz

09/08/2021

Step 1

Passive transport is a process that does not require the cell to expend energy. Instead, molecules move from an area of higher concentration to an area of lower concentration, a process known as diffusion. Active transport, on the other hand, involves the cell Show more…

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Which of the following statements about transport through the plasma membrane of a cell is correct? (a) Both passive and active transport require the input of energy. (b) Passive transport does not require the input of energy, and active transport does. (c) Passive transport does require the input of energy, and active transport does not. (d) Neither active nor passive transport requires the input of energy.

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Key Concepts

Passive Transport

Passive transport refers to the movement of molecules across a cell membrane without the need for energy input. This process utilizes concentration gradients, allowing substances to move from areas of higher concentration to areas of lower concentration through mechanisms such as simple diffusion, facilitated diffusion, and osmosis.

Active Transport

Active transport is the process by which cells move molecules across the plasma membrane against their concentration gradient, requiring the input of energy, typically in the form of ATP. This energy-dependent process is essential for maintaining concentration gradients that are critical for various cellular functions.

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