Cell Membrane and Cell Transport

Cell Membranes & Transport

Multiple Choice

What is homeostasis?

• Keeping the cell balanced

• When you bring water inside the cell

• When the cell gets too complex

Multiple Choice

What does semi-permeable mean?

• Somewhat able to hold its shape

• Not allowing anything to pass through the membrane

• Only letting certain things pass through the membrane

• Not letting anything pass through the membrane without a protein channel

Multiple Select

Select all the characteristics of the cell membrane.

• Made of two layers (bilayer)

• Made of phsopholipids

• The outside layer loves water and the inside layer hates water

• It allows everything to pass through freely

What happens to perfume if you spray it in a closed room?

Multiple Choice

Cells naturally go with the concentration gradient which is when -

• Molecules spread out from a high concentration to a low concentration

• Molecules come back together from a low concentration to a high concentration

• Molecules are evenly spread throughout the room without any effort

What do the words "active" and "passive" mean?

Multiple Choice

Molecules passively transport themselves from a high concentration of molecules to a low concentration of molecules to spread out. However, active transport is when molecules go from being spread out in a low concentration back to being together in a high concentration. How are they able to do this?

• The cell uses ATP (energy) to bring the molecules from a low concentration back to a high concentration

• The cell is unable to do this because it goes against what molecules can do naturally

• The molecules can move from low to high freely without any help at all

Multiple Choice

This is an example of which method of getting molecules across a cell membrane?

• facilitated diffusion

• active transport

• simple diffusion

• bulk transport

Multiple Choice

This is an example of which method of getting molecules across a cell membrane?

• facilitated diffusion

• active transport

• simple diffusion

• bulk transport

Multiple Choice

Osmosis uses energy to move water away from high concentrations of solute.

• true

• false

Multiple Choice

This method of getting molecules across the cell membrane requires energy.

• facilitated diffusion

• active transport

• simple diffusion

• diffusion

Multiple Choice

In what type of cell transport do molecules go from LOW to HIGH with the help of ATP and a protein channel?

• Diffusion

• Facilitated diffusion

• Osmosis

• Active transport

Multiple Choice

In what type of cell transport do WATER molecules go from high to low concentration across the cell membrane?

• Diffusion

• Facilitated Diffusion

• Osmosis

• Active Transport

Multiple Choice

In what type of cell transport do molecules go from a LOW to HIGH concentration across the cell membrane?

• Diffusion

• Facilitated diffusion

• Osmosis

• Active transport

Multiple Choice

In what type of cell transport do molecules go from HIGH to LOW concentration across the cell membrane with the help of a protein channel?

• Diffusion

• Facilitated diffusion

• Osmosis

• Active Transport