Why do molecules move? What influences the direction of movement across a membrane or within a space?

Go over the questions below and write out the answers by hand. Afer you finish upload a picture of your work.

Bio 3 Chapter 5 Study Questions

Why do molecules move? What influences the direction of movement across a membrane or within a space?

What kinds of molecules can move easily without help across the plasma membrane?

3. What is the name we use for passive diffusion of water? How does this process work?

What is meant by the terms hypotonic, hypertonic, and isotonic explain each one in detail? What is plasmolysis?

Dehydrated patients are rehydrated with a saline solution that is isotonic to red blood cells. What would you expect to happen to the size of the red blood cells if the patients were rehydrated with pure water instead of saline solution?

What is simple diffusion? What is facilitated diffusion? How is simple diffusion similar to facilitated? How are they different?

What is active transport?

What is the difference between passive diffusion, facilitated diffusion and active transport? Fill in the blanks in the following chart.

Passive diffusion

Facilitated

diffusion

Active transport

How do molecules move?

Is a membrane protein required?

Is energy required?

How are very large substances moved into and out of the cell? Describe them.

What is energy and why is it important for life? What are the two basic forms of energy?

Describe the first and second law of thermodynamics.

What is the structure and function of ATP? Why is it important that ATP can be regenerated?

What are enzymes? How do they work?

What are competitive and non-competitive inhibitors?

Requirements: Not too long