Cell Transport 2022

Osmosis is a form of ______________. 

• Passive Transport

• Active Transport

Osmosis is the movement of _____ across a membrane.

• food

• energy

• oxygen

• water

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

Molecules diffusing with the concentration gradient through a protein channel is...

• Facilitated Diffusion

• Simple Diffusion

• Active Transport

• Osmosis

In a nerve cell, ATP energy is used to pump sodium (Na) out of the cell and potassium (K) into the cell. This is an example of...

• Facilitated Diffusion

• Simple Diffusion

• Active Transport

• Osmosis

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole

• nucleus

• cell membrane

• cell wall

The cell membrane

• regulates what enters/leaves cell

• helps maintain homeostasis

• keeps contents of cell in place

• all of the above

What is diffusion?

• when molecules move 

• when molecules move from a high concentration to a low.

• no movement 

• molecules move everywhere

This is a picture of

• Cell wall

• Cell membrane

• chloroplast

• mitochondria

The cell membrane is selectively permeable, which means...

• All materials can enter and leave the cell

• Certain things can enter while others cannot

• The cell manually sorts through all materials

• Only certain cells can interact with the cell.