What substance moves across cell membranes by osmosis?

In a hypotonic solution, a cell will​ (a)   ​ ​

• gain water
• stay the same
• Shrink

Tags

NGSS.HS-LS1-3

In a hypertonic solution, a cell will​ (a)  

• Shrink
• Gain water
• Stay the same

In an isotonic solution, a cell will​ (a)  

• stay the same
• Shrink
• Gain water

What does it mean for a solution to be isotonic?

• Solution is more pure

• Solution is less pure

• Solution is the same purity

Diffusion happens ​ (a)   the concentration gradient.

• Along
• Against

Diffusion moves substances from a ​​ (a)   concentration to a ​​ (b)   concentration.

• High
• Low

Tags

NGSS.HS-PS1-5

Which of the following is true?

• Diffusion requires energy 

• Diffusion does not require energy

What do we call it when diffusion must occur with the help of channel proteins?

• simple diffusion

• facilitated diffusion

1. Active transport occurs​ (a)   the concentration gradient.

• Against
• Along