1.1.2 Cell Transport quiz

A "concentration gradient" refers to____

• A type of cell

• A difference in concentration over a distance

• A form of active transport

• A species of plant

_______ Transport involves the movement of particles from an area of high concentration to an area of low concentration. (down a concentration gradient)

• Active

• Passive

• Cellular

• exocytosis

Which type of transport requires energy from the cell

• Active

• Passive

• Both

• Niether

What sort of particles usually move in and out of the cell through passive transport?

• Large particles

• Small Particles

The blood carries a very high concentration of oxygen. As it moves past the cells, which have a lower oxygen concentration, the oxygen naturally moves from the blood into the cells. This is an example of______

• Active transport

• Diffusion

• Osmosis

• Endocytosis

In which direction will these molecules tend to diffuse?

• Upward, into the extracellular fluid

• Downward, into the cytoplasm

• In both directions equally

What process is occurring here?

• Exocytosis

• Endocytosis

• Osmosis

• Protein Pumping

"Channel proteins" in the membrane form tunnels through which molecules too large to move through the membrane can pass in and out of the cell. This is called______

• Osmosis

• Facilitated Diffusion

• Active transport

• Protein pumping

Protein pumps on the membrane use energy to pick up molecules outside the cell, where the concentration is low, and move them inside, where the concentration is high. This is an example of______

• Passive Transport

• Diffusion

• Osmosis

• Active transport

This form of transport is used to move very large proteins into the cell. What is it?

• Osmosis

• Facilitated Diffusion

• Diffusion

• Endocytosis