Section 2: Movement of Substances 6. Molecules naturally move from areas of concentration to concentration in a process called 7. Water moves across membranes through a specific type of diffusion known as 8. A process that allows large or charged molecules to pass through the membrane with the help of proteins , but without energy use is called 9. When a cell expends energy to move substances against their concentration gradient, it is performing 10. If a cell is placed in a solution that causes it to swell, the solution is , whereas if the cell shrinks, the solution is

Question

Section 2: Movement of Substances 6. Molecules naturally move from areas of concentration to concentration in a process called 7. Water moves across membranes through a specific type of diffusion known as 8. A process that allows large or charged molecules to pass through the membrane with the help of proteins , but without energy use is called 9. When a cell expends energy to move substances against their concentration gradient, it is performing 10. If a cell is placed in a solution that causes it to swell, the solution is , whereas if the cell shrinks, the solution is

Answer 1

6. high, low, diffusion7. osmosis8. facilitated diffusion9. active transport10. hypotonic, hypertonic

Answer 2

## Step 1The first question is about the natural movement of molecules from areas of high concentration to areas of low concentration. This process is known as diffusion.## Step 2The second question refers to the movement of water across membranes. This process is known as osmosis.## Step 3The third question is about a process that allows large or charged molecules to pass through the membrane with the help of proteins, but without energy use. This process is known as facilitated diffusion.## Step 4The fourth question is about the process where a cell expends energy to move substances against their concentration gradient. This process is known as active transport.## Step 5The fifth question is about the type of solution that causes a cell to swell or shrink. If a cell is placed in a solution that causes it to swell, the solution is hypotonic. If the cell shrinks, the solution is hypertonic.

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