Quiz: Cell Structure and Transport

3. Which of the following is NOT a function of a cell membrane?

• A. regulates (controls) passage of molecules into and out of the cell

• B. provides mechanical shape

• C. maintains cellular balance (homeostasis)

• D. responsible for the synthesis of ATP

Tags

NGSS.MS-LS1-2

Students are observing particles moving against the concentration gradient in a lab investigation. Which type of transport are they observing?

• osmosis

• active Transport

• facilitated diffusion

• diffusion

Students are observing particles moving with the concentration gradient in a lab investigation. Which type of transport are they observing?

• using pumps to move things quickly

• passive transport

• osmosis

• endocytosis

This picture shows molecules of red dye that have moved. What is this type of movement called?

• Osmosis; the water molecules are moving from high concentration to low

• Diffusion; the dye molecules are moving from low to high concentration

• Diffusion; the dye molecules are moving from high to low concentration.

• Facilitated diffusion; because the molecules are moving through a protein channel.

Tags

NGSS.MS-PS1-2

The cell membrane is responsible for allowing molecules to diffuse into or out of the cell. What type of movement is diffusion?

• Passive transport

• Active transport

The cell membrane is responsible for allowing molecules to diffuse through a protein channel, from high concentration to low concentration. What type of transport is this?

• Passive Transport

• Active transport

The cell membrane needs to use energy to move molecules quickly out of the cell through a pump. What type of transport is this?

• Passive transport

• Active transport

Passive transport is when molecules move ________ the concentration gradient.

• against

• up

• down

• with

Active transport is when molecules move ________ the concentration gradient.

• against

• up

• down

• with

This picture is a representation of what type of transport?

• Osmosis because it is diffusing through a protein from an area of high concentration to low concentration.

• Facilitated diffusion because it is diffusing through a protein from an area of high concentration to low concentration.

• Facilitated diffusion because it is diffusing through a protein from an area of low concentration to high concentration.

• Simple diffusion because it is diffusing through a protein from an area of high concentration to low concentration.