Cell Transport

How is active transport different from passive transport?

Secondary active transport involves pore-forming proteins and energy from an electrochemical gradient to transport substances.

• True

• False

The processes of primary active transport and secondary active transport are the same.

• True

• False

Primary active transport uses energy from ATP, redox energy, or photon energy to transport molecules across a membrane.

Complete the sentence with one of the following words: Redox or Photon.

(a)   energy is used during cellular respiration in the electron transport chain.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

One example of active transport is _____.

• The sodium (Na+)/potassium (K+) pump

• Osmosis

• Facilitated diffusion

• None of the above

Active transport occurs when a substance moves up the concentration to cross a cell membrane.

• True

• False

How would a sodium ion cross the cell membrane?

• by facilitative diffusion

• by facilitative transport

• by active transport

• by simple diffusion

Water can pass more quickly through a cell membrane with the help of a carrier protein.

• True

• False

Complete the sentence using one of the following words: Channel or Carrier.

(a)   proteins allow water or small ions to diffuse across the cell membrane, behaving like pores in the cell membrane.

The surface of a cell membrane is water "loving."

• True

• False