Cell Transport

What is the cell membrane made out of

What are the two molecules that can pass through the cell membrane through simple diffusion?

• glucose

• oxygen

• carbon dioxide

• sunlight

Does simple diffusion require energy?

• yes

• no

Diffusion is known as ____________ transport

• active

• passive

Diffusion moves materials from ___________ concentration to ______________ concentration.

• high to low

• low to high

True or False:

Proteins assist with particles moving across the cell membrane with facilitated diffusion and is considered passive transport.

What is the energy molecule that powers active transport?

• glucose

• carbon dioxide

• sunlight

• ATP

Tags

NGSS.HS-LS1-7

Match the terms with their descriptions.

• exocytosis- moving into the cell

• exocytosis- moving out of the cell

• endocytosis- moving into the cell

• endocytosis- moving out of the cell

What part of the cell forms a barrier between the cell and its environment?

• nucleus

• cell membrane

• cholesterol

• ribosome

A cell's membrane is composed of two layers of lipid molecules. What is the main function of a cell's membrane?

• store energy for later use

• direct functions of the cell's organelles

• control what enters and exits the cell

• construct long strings of amino acids