Exam REVIEW

Identify the cellular structure that diffusion occurs across.

• ribosome

• mitochondria

• cytoplasm

• cell membrane

• chloroplast

Identify the number that shows the cell membrane in this animal cell.

• 1

• 2

• 3

• 4

Describe diffusion:

• the movement of molecules higher concentration to an area of lower concentration

• the synthesis of molecules higher concentration to an area of lower concentration

• the movement of molecules lower concentration to an area of higher concentration

• the synthesis of molecules lower concentration to an area of higher concentration

Identify the substance that was added to the outside of the plant cells that caused the change observed.

• salt water

• fresh water

• distilled water

• glucose

What is the starch indicator?

• Iodine

• Bromothymol Blue

• Benedict's Solution

• Glucose

The diagram represents a sugar cube being dropped into an undisturbed beaker of water at room temperature. One sugar molecule is labeled.

• 
• 
• 
• 

Before placing the potato in the beaker, the student used an electronic balance to determine the mass of the potato cube. The mass of the cube was determined again after it was in the beaker for an hour. Describe how this information could specifically be used to determine if water moved during the investigation.

• If there was a decrease in mass, the water moved into the cell.

• If there was a decrease in mass, the starch moved out of the cell.

• If there was a decrease in mass, the starch indicator moved into the cell.

• If there was an increase in mass, water moved into the cell.

All living things do which of the following?

• chemosynthesis

• cellular respiration

• photosynthesis

• all of the answers

What is one of the reactants or raw materials of cellular respiration?

• energy

• glucose

• carbon dioxide

• water

Which of the following structure is where cellular respiration occurs in the cell?

• nucleus
• cytoplasm
• mitochondria
• vacuoles