Question

use the information and diagram to complete part a and part b. during cellular respiration, oxygen (o2) and carbon dioxide (co2) are exchanged across the cell membrane to maintain homeostasis. the two molecules are permeable to the cell membrane and do not require atp to travel across. outside of the cell inside of the cell part a: which type of cell transport is responsible for the movement of carbon dioxide and oxygen across the cell membrane? a simple diffusion b endocytosis c active transport d facilitated diffusion part b: based on the diagram, in which direction are carbon dioxide and oxygen most likely to move across the cell membrane? a oxygen will move into the cell, and carbon dioxide will move out b carbon dioxide will move into the cell, and oxygen will move out c oxygen and carbon dioxide will both exit the cell d oxygen and carbon dioxide will not move.

Explanation:

For Part A, oxygen and carbon - dioxide move across the cell membrane by simple diffusion as they are small, non - polar molecules and can pass through the lipid bilayer without the need for energy or a carrier protein. For Part B, during cellular respiration, oxygen enters the cell to be used in the process and carbon dioxide, a by - product, exits the cell.

Answer:

Part A: A. Simple Diffusion
Part B: A. Oxygen will move into the cell, and carbon dioxide will move out.