• You need to know how photosynthesis and cellular respiration are
  related (that the products of one are the reactants of the other).
• You need to know the reactants, products and basic functions of
  photosynthesis, aerobic, and anaerobic respiration.
• You need to understand how ATP is connected with energy
  transfers within the cell.
• You need to know that photosynthesis stores energy while cellular
  respiration releases energy.

The diagram below shows the relationship between photosynthesis and
cellular respiration and the organelles in which they occur.

Which statement describes how photosynthesis and cellular respiration
are interrelated?

A. Oxygen is produced during cellular respiration and stored during
photosynthesis.

B. Carbon dioxide and water released by cellular respiration are
used in photosynthesis.

C. Photosynthesis releases the energy that is stored during the
process of cellular respiration.

D. Glucose is used during cellular respiration to produce food that
is broken down during photosynthesis.

Which gas is removed from the atmosphere during photosynthesis?

A. hydrogen

B. oxygen

C. nitrogen

D. carbon dioxide

A weightlifter is using heavy weights in short bursts for a competition.
Because his muscle cells are not able to take in enough oxygen to make
very much ATP the weightlifter begins to get fatigue in his muscles.
Which of the following processes is most likely going on in the muscles
of the weightlifter as he competes in his event? 

A. As the cells run out of oxygen they switch to anaerobic
respiration, which allows the cell to make small amounts of ATP in
the absence of oxygen. 

B. As the cells run out of oxygen, they die off gradually and the
weightlifter's muscles have fewer contracting muscle cells.

C. The cells will never run out of oxygen if the weightlifter is
breathing.

D. As the cells run out of oxygen, they will continue to make the
same amount of ATP, since oxygen is not required to make ATP. 

What function does ATP carry out in living things?

A. aids in protein folding and coiling

B. used to capture and transfer energy

C. identifies DNA start sequences for transcription

D. helps maintain the fluidity of cell membranes

How are cellular respiration and photosynthesis related, in terms of
energy?

A. The energy captured in photosynthesis is used to power cellular
respiration.

B. The energy transformed in cellular respiration is used to power
photosynthesis.

C. Photosynthesis and respiration perform the same task in terms
of energy transformation.

D. Energy is not involved in either photosynthesis or cellular
respiration.

Two different species of bacteria are examined. Scientists find that
species X always produces CO₂ and H₂O during cellular respiration.
Species Y always produces ethyl alcohol and CO₂. Which conclusion can
be made from these observations? 

A. Only species Y is aerobic.

B. Only species Y is anaerobic.

C. Both species X and Y are aerobic.

D. Both species X and Y are anaerobic. 

In which way are photosynthesis and cellular respiration different? 

A. Cellular respiration stores ATP, while photosynthesis releases
ATP.

B. Cellular respiration produces oxygen, while photosynthesis uses
oxygen.

C. Photosynthesis releases energy, while cellular respiration stores
energy.

D. Photosynthesis used carbon dioxide, while cellular respiration
produces carbon dioxide.

A diagram representing the relationship between photosynthesis and cellular respiration is shown below.

The numbered boxes in the diagram represent which of the following? 

A. 1 - water; 2 - nitrogen

B. 1 - nitrogen; 2 - oxygen

C. 1 - oxygen; 2 - carbon dioxide

D. 1 - carbon dioxide; 2 - water