Cells and Their Functions

What is hemolysis?

• Hemolysis is the breakdown of red blood cells.

• Hemolysis is the process of blood clotting.

• Hemolysis is the increase of white blood cells.

• Hemolysis is the formation of new red blood cells.

What happens to a cell during hemolysis?

• The cell swells and bursts, releasing its contents.

• The cell remains unchanged and intact.

• The cell divides into two smaller cells.

• The cell shrinks and becomes rigid.

What causes plasmolysis in plant cells?

• Plasmolysis occurs in isotonic solutions.

• Plasmolysis is caused by the loss of water from plant cells in a hypertonic solution.

• Plasmolysis happens when plant cells are submerged in pure water.

• Plasmolysis is caused by excessive nutrient absorption.

How does a cell look when it is plasmolyzed?

• A plasmolyzed cell appears swollen with the cytoplasm pressed against the cell wall.

• A plasmolyzed cell is completely filled with water and appears turgid.

• A plasmolyzed cell appears shriveled with the cytoplasm pulled away from the cell wall.

• A plasmolyzed cell looks normal with no visible changes in structure.

What is active transport in cells?

• Active transport moves molecules with their concentration gradient without energy.

• Active transport is the movement of water only, not other molecules.

• Active transport is the movement of molecules against their concentration gradient, requiring energy.

• Passive transport requires energy to move molecules.

Can you name a substance that uses active transport?

• Glucose

• Chloride

• Oxygen

• Sodium

What is osmosis?

• Osmosis is the movement of nutrients across a membrane.

• Osmosis is the diffusion of gases in the atmosphere.

• Osmosis is the movement of water across a membrane due to concentration differences.

• Osmosis is the process of energy production in cells.

How does osmosis affect cell size?

• Osmosis can cause cells to swell or shrink, affecting their size depending on the surrounding solution's solute concentration.

• Osmosis only occurs in plant cells, not animal cells.

• Osmosis has no effect on cell size or shape.

• Osmosis only causes cells to grow larger regardless of the solution.

What is the difference between diffusion and osmosis?

• Diffusion is general movement of particles; osmosis is specifically the movement of water across a membrane.

• Osmosis is the movement of all types of particles; diffusion is only for gases.

• Diffusion only occurs in gases; osmosis occurs in liquids.

• Diffusion requires energy; osmosis does not need any energy.

What are the types of diffusion?

• Diffusion of gases

• Diffusion of light

• Diffusion of sound

• Simple diffusion, Facilitated diffusion, Osmosis, Active transport, Bulk flow