Cell Transport and Solutions Concepts

The video tutorial explains the concept of homeostasis and how cells maintain balance through cell transport. It introduces diffusion and osmosis as processes that help achieve equilibrium. An experiment with gummy bears in different solutions demonstrates the effects of hypotonic, hypertonic, and isotonic environments on cells. The tutorial concludes with a discussion on the importance of solution tonicity and its impact on cellular health.

What is the term used to describe the balance state that cells strive to maintain?

• Equilibrium

• Homeostasis

• Diffusion

• Osmosis

What is the role of the cell or plasma membrane in cell transport?

• It only allows water to pass.

• It selectively allows certain substances to pass.

• It allows all substances to pass freely.

• It blocks all substances from entering.

What is the movement of molecules from high to low concentration called?

• Osmosis

• Active transport

• Diffusion

• Facilitated diffusion

What is the term for the movement of water across a selectively permeable membrane?

• Diffusion

• Active transport

• Osmosis

• Endocytosis

In the gummy bear experiment, what type of solution is distilled water compared to the gummy bear?

• Hypertonic

• Isotonic

• Supersonic

• Hypotonic

What happens to a gummy bear placed in a hypertonic solution?

• It shrinks

• It stays the same

• It dissolves

• It swells

What is the effect of placing a gummy bear in an isotonic solution?

• It swells

• It dissolves

• It shrinks

• It stays the same

Why is it dangerous to drink salt water if you are lost at sea?

• It causes cells to shrink.

• It has no effect on cells.

• It hydrates the body.

• It causes cells to swell and burst.

What can happen if your blood contains too much water compared to your cells?

• Cells will shrink.

• Cells will swell and burst.

• Cells will stay the same.

• Cells will become hypertonic.

What is the term for a solution with an equal amount of solutes on both sides of a membrane?

• Hypertonic

• Hypotonic

• Isotonic

• Supersonic