cell membranes and water potential

The cell membrane is solid and rigid.

• true
• false

An area with a large amount of particles is

• low concentration
• high concentration
• diffusion
• osmosis

Tags

NGSS.MS-LS2-1

Diffusion is the movement of 

• water from low to high concentration
• particles from low to high concentration
• water from high to low concentration
• particles from high to lowconcentration

Tags

NGSS.MS-PS1-2

Which of the following terms means the movement of water from high concentration to low concentration

• diffusion
• prokaryotes
• osmosis
• concentration

Large polar molecules and ions can easily pass through the cell membrane without any help.

• true- they pass right through
• false- they need a protein channel 

Which way would the purple molecules move through the semi-permeable membrane?

• From the  A side  to the B-side
• From the B side to the A side
• none of the purple molecules would move
• they would move equally back and forth in a state of dynamic equilibrium

Tags

NGSS.HS-PS1-5

Which transport does not require energy?

• Passive
• Active 

What is Osmosis?

• equal concentration
• diffusion of water through a selectively-permeable membrane
• high to low concentration
• non-polar tail

Which is true about active transport?

• It requires energy
• it does not require energy
• It moves substances down the concentration gradient
• it moves material from high to low concentration

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis