Cell Transport Review

Glucose is not able to pass through a semi-permeable cell membrane. If the cells need sugar to

make ATP and carry out cellular processes, how does the sugar get into the cell? points: 1

• passive transport by fascilitated diffusion

• active transport using ATP and carrier proteins

• passive transport by osmosis

• phagocytosis

A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases.

Which of the following has occurred? points: 1

• The swollen gums have absorbed the saltwater solution.

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

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

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

The cell membrane of the red blood cell will allow water, oxygen, and carbon dioxide to pass

through. Because other substances are blocked from entering, this membrane is called points:

• PERFORATED

• SEMI-PERMEABLE

• NON-CONDUCTIVE

• PERMEABLE

Which of the following IS NOT an example of PASSIVE TRANSPORT?

• DIFFUSION

• FASCILITATED DIFFUSION

• OSMOSIS

• NA/K PUMP

Which of the following is NOT TRUE?

• In diffusion, molecules move from an area of high concentration to lower concentration

• Water leaves a cell when placed in a hypotonic solution

• In osmosis, water moves from an area of higher water concentration to an area of lower water

  concentration

• Water leaves a cell when placed in a hypertonic solution

If a substance is more highly concentrated outside the cell than inside the cell and the substance

can move through the cell membrane, the substance will points: 1

• move by diffusion from inside the cell to outside.

• remain in high concentration outside the cell

• move by diffusion from outside to inside the cell

• cause water to enter the cell by osmosis

The movement of materials in a cell AGAINST A CONCENTRATION GRADIENT is called :

• FACILITATED DIFFUSION

• ACTIVE TRANSPORT

• OSMOSIS

• DIFFUSION