Moderate

The oxygen and carbon dioxide crosses the plasma membrane by the process of:

Correct answer: C. Passive diffusion

  • A. Active diffusion
  • B. Facilitated diffusion
  • C. Passive diffusion
  • D. Random diffusion

Explanation

Passive diffusion, also known as simple diffusion, is a process by which molecules move across a membrane from an area of higher concentration to an area of lower concentration. This process is responsible for the movement of oxygen and carbon dioxide across the Plasma membrane.

Last updated

About Cell Structure and Function

Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.

Practise Cell Structure and Function

2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Biology questions like this

Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions