Table of Contents
When would a substance diffuse into a cell?
Dissolved or gaseous substances have to pass through the cell membrane to get into or out of a cell. Diffusion is one of the processes that allows this to happen. Diffusion occurs when particles spread. They move from a region where they are in high concentration to a region where they are in low concentration.
What is most likely to diffuse through a cell membrane?
The molecule most likely to be involved in simple diffusion is water – it can easily pass through cell membranes. When water undergoes simple diffusion, it is known as osmosis.
What substances can diffuse into a cell?
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
What is required for diffusion to happen in the cell?
For diffusion to occur there must be a concentration gradient. The dissimilarity in the amounts of solutes, particles, or molecules between the two regions will cause them to move between the two regions.
Why does diffusion happen types of diffusion?
Causes of Diffusion Diffusion is a natural and physical process, which happens on its own, without stirring or shaking the solutions. Liquid and gases undergo diffusion as the molecules are able to move randomly. The molecules collide with each other and change the direction.
Which of the following would be least likely to diffuse through a cell membrane?
6. Which of the following is least likely to cross a cellular membrane by simple diffusion? ANSWER: B, POTASSIUM IONS ARE CHARGED AND DO NOT PASS AS READILY THROUGH THE LIPID BYLAYER AS DO NON-POLAR GASSES AND LIPIDS.
What causes diffusion to occur?
The kinetic energy of the molecules results in random motion, causing diffusion. it is the random motion of the molecules that causes them to move from an area of high concentration to an area with a lower concentration. Diffusion will continue until the concentration gradient has been eliminated.
What kind of molecules diffuse into a cell?
Glucose would diffuse into the cell. Protein would diffuse out of the cell. Oxygen would diffuse into the cell. Carbon dioxide would diffuse out of the cell. Active or passive?
Is the concentration of CO2 the same outside the cell?
The concentration of CO2 will remain the same inside the cell. The concentration of O2 will remain the same outside the cell. The concentration of CO2 will decrease outside the cell. Q. A substance is most likely to diffuse into a cell when
Where are the molecules located in solution a?
Solution A will contain all of the water molecules. Solution B will remain unchanged. Q. The diagram below represents a cell in water. Formulas of molecules that can move freely across the cell membrane are shown. Some molecules are located inside the cell and others are in the water outside the cell.
What happens to the concentration of O2 Inside the cell?
The concentration of O2 will increase inside the cell. The concentration of CO2 will remain the same inside the cell. The concentration of O2 will remain the same outside the cell. The concentration of CO2 will decrease outside the cell. Q.