Cellular Respiration Review

Which statement best describes substance X?

• it is oxygen released by protein synthesis

• it is glucose which is produced by photosynthesis

• it is starch that is produced by digestion

• it is carbon dioxide released by respiration

Certain seaweeds contain a greater concentration of iodine inside their cells than there is in the seawater surrounding them. The energy required to maintain this concentration difference is most closely associated with the action of

• ribosomes

• mitochondria

• vacuoles

• nuclei

This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.

• photosynthesis
• light-independent reaction
• cellular respiration
• light-dependent reaction

Cellular respiration takes place in the

• nucleus
• cytoplasm
• ribosomes
• mitochondria

Why is oxygen necessary for life?

• Because it helps our lungs to expand.
• Because it helps to fight germs.
• Because it keeps our brain alert.
• Because it allows energy to be released from glucose.

Which type of respiration occurs without the presence of oxygen?

• Aerobic 
• Anaerobic 

The diagram below represents a biochemical process. Which molecule is represented by X?

• DNA

• Protein

• Starch

• ATP

cellular respiration occurs in which cell part?

• mitochondria
• ribosomes
• cell membrane
• chloroplasts

Within which organelles are used used to produce ATP?

• 1

• 2

• 3

• 4

Cells in the body use oxygen for cellular respiration. What is produced by cellular respiration?

a. ATP is produced and carbon dioxide is released.

b. ATP is consumed and carbon dioxide is released.

c. ATP is produced and carbon dioxide is absorbed.

d. ATP is consumed and carbon dioxide is absorbed.

• a

• b

• c

• d