Cell Transport

Particle of movement from an area of lower concentration to an area of higher concentration.

• Active transport

• Passive transport

Particle of movement from an area of higher concentration to an area of lower concentration.

• Active transport

• Passive transport

Which type of passive transport uses transport proteins to transport items such as glucose through the membrane?

• Facilitated diffusion

• Osmosis

• Diffusion

In which case would a cell most likely shrink?

• when placed in a solution containing a high salt concentration
• when placed in a isotonic solution
• when placed in a solution containing a low pH
• when placed in a solution containing distilled water

6. The tails of a phospholipid are meaning that they are "water-hating" because they are

• A. Hydrophobic, non-polar

• B. Hydrophobic, polar

• C. Hydrophilic, non-polar

• D. Hydrophilic, polar

7. Act(s) as a membrane stabilizer, in particular when temperatures are high or low.

• A. Phospholipids

• B. Carbohydrates

• C. Cholesterol

• D. Peripheral Proteins

15. A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?

• A. The swollen gums have absorbed the saltwater solution.

• B. The saltwater solution lowers the temperature of the water in the gums.

• C. The salt in the solution has moved against the concentration gradient. 

• D. The water in the gums has moved out due to the high concentration of salt in the solution.

Tags

NGSS.HS-PS1-5

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

Tags

NGSS.HS-LS2-5

"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