Cell Transport and Effects

What is plasmolysis?

• Plasmolysis is the contraction of the protoplast of a plant cell as a result of loss of water from the cell.

• Plasmolysis is the process of cell division in plants.

• Plasmolysis is the expansion of the cell wall in response to water loss.

• Plasmolysis refers to the absorption of water by plant cells.

What happens to a cell during plasmolysis?

• The cell membrane detaches from the cell wall due to water loss.

• The cell undergoes division and multiplies.

• The cell membrane thickens and becomes rigid.

• The cell wall expands due to water absorption.

What causes hemolysis in red blood cells?

• Factors such as autoimmune disorders, infections, medications, genetic conditions, and toxins.

• Excessive exercise

• High sugar intake

• Low oxygen levels

How does hemolysis affect the shape of red blood cells?

• Hemolysis causes red blood cells to become elongated and thin.

• Hemolysis has no effect on the shape of red blood cells.

• Hemolysis makes red blood cells larger and more oval.

• Hemolysis causes red blood cells to lose their biconcave shape, becoming spherical or fragmented.

What is active transport in cells?

• Passive transport that requires no energy.

• Movement of molecules with their concentration gradient without energy.

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

• Transport of large molecules through vesicles without energy.

Can you name a substance that uses active transport?

• Chloride

• Oxygen

• Glucose

• Sodium

What is osmosis?

• Osmosis is the process of energy production in cells.

• Osmosis is the diffusion of gases in the atmosphere.

• Osmosis is the movement of nutrients across a membrane.

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

How does osmosis affect cell size?

• Osmosis only affects plant cells, not animal cells.

• Osmosis has no effect on cell size.

• Osmosis affects cell size by causing cells to swell in hypotonic solutions and shrink in hypertonic solutions.

• Osmosis causes cells to grow in hypertonic solutions.

What are the main functions of the cell membrane?

• Synthesize proteins for the cell

• Store genetic information

• The main functions of the cell membrane are to regulate substance transport, provide structural support, facilitate cell communication, and maintain homeostasis.

• Generate energy for the cell

How does the cell membrane protect the cell?

• The cell membrane allows all substances to pass freely without restriction.

• The cell membrane protects the cell by acting as a selective barrier that regulates the movement of substances in and out of the cell.

• The cell membrane is primarily responsible for energy production within the cell.

• The cell membrane serves as a rigid structure that prevents any movement of materials.