Bio: Unit 1 Practice Test

Front

Why is passive transport called "passive"?

Back

It occurs without energy.

Front

Osmosis is the diffusion of _____ across a membrane

Back

water

Front

Which of the following is NOT a type of passive transport? Osmosis, Diffusion, Endocytosis

Back

Endocytosis

Front

Active transport allows a cell to move molecules from an area of low concentration to an area of high concentration.

Back

True

Front

Cells sometimes use energy to transport materials across the cell membrane. This is called

Back

active transport

Front

When the concentration of solutes on both sides of a membrane is the SAME, the solution is

Back

isotonic

Front

A process for removing large quantities of toxins and waste from the cell is

Back

exocytosis

Front

Facilitated diffusion involves movement of molecules across a membrane when they bond to

Back

channel proteins

Front

Direction of oxygen movement with 25% oxygen inside the cell and 50% oxygen outside in the blood.

Back

Into the cell

Front

A cell contains 25% NaCl and is placed in a solution that has 5% NaCl. What will happen to the cell?

Back

The solution is hypotonic and the cell will swell.