Cell Transport and Solution Dynamics Explained

The video explains cell transport and the effects of different extracellular solutions on cells. It covers hypertonic, isotonic, and hypotonic solutions, detailing how each affects water movement and cell size. Hypertonic solutions cause cells to shrivel, isotonic solutions maintain cell size, and hypotonic solutions can cause cells to swell or burst. The video also discusses specific terms like crenation, plasmolysis, and cytolysis, providing examples for both animal and plant cells.

What is the primary factor affecting the transport of substances through the cell membrane?

• Temperature of the environment

• Concentration gradient of extracellular solutions

• Type of organism

• Size of the cell

In a hypertonic solution, what happens to a cell?

• It divides into two

• It shrivels and may implode

• It remains the same size

• It swells and bursts

What is the term used to describe the shriveling of red blood cells in hypertonic solutions?

• Plasmolysis

• Cytolysis

• Crenation

• Hemolysis

What happens to plant cells in a hypertonic solution?

• They divide rapidly

• They undergo plasmolysis

• They remain unchanged

• They burst due to high pressure

In an isotonic solution, how does the movement of water molecules occur?

• Water only enters the cell

• Water only exits the cell

• Water movement stops completely

• Water moves in and out at equal rates

What is the effect of an isotonic solution on the size of a cell?

• The cell swells

• The cell bursts

• The cell shrinks

• The cell remains the same size

What is the result of placing a cell in a hypotonic solution?

• The cell divides

• The cell shrinks

• The cell remains unchanged

• The cell swells and may burst

What prevents plant cells from bursting in a hypotonic solution?

• The central vacuole

• The cell membrane

• The rigid cell wall

• The cytoplasm

What is the term for the bursting of red blood cells in a hypotonic solution?

• Cytolysis

• Crenation

• Plasmolysis

• Hemolysis

Which type of solution causes water to diffuse out of the cell, leading to cell shrinkage?

• Hypotonic

• Isotonic

• Hypertonic

• Neutral