Photosynthesis and Modes of Nutrition

1. Which equation summarizes photosynthesis?

• water + starch ---> glucose + glucose + glucose

• water + carbon dioxide ---> oxygen + glucose + water

• glucose + oxygen ---> water + carbon dioxide + ATP

• glucose + glucose ---> maltose + water

In what organelle does photosynthesis occur?

• the nucleus

• chloroplasts

• the vacuole

• the cell wall

Four identical plants are grown under different colored light bulbs. Under which color will the release of oxygen gas be slowest?

• blue

• green

• orange

• red

Which of the following would have the smallest effect on the rate of photosynthesis in a green plant

• carbon dioxide concentration

• light intensity

• oxygen concentration

• water available

Which of the following is produced during photosynthesis?

• carbon dioxide

• PGAL

• DNA

• actic acid

In what part of photosynthesis would the tracer carbon-14 be used to study the path of carbon through the chemical reactions?

• the absorption of light by chlorophyll

• the dark reactions

• photolysis

• the light reactions

Atmospheric oxygen that is inhaled by animals comes from:

• carbon dioxide molecules split during the light reactions

• carbon dioxide split during the dark reactions

• water molecules split during the light reactions

• water molecules split during the dark reactions

What change occurs during photosynthesis?

• solar energy is converted to chemical energy

• kinetic energy is converted to chemical energy

• chemical energy is converted to radiant energy

• water is converted to chemical energy

Choose the best description for the process when water molecules are split.

• photochemical reactions only

• carbon fixation reactions only

• both the photochemical & carbon fixation reactions

• neither the photochemical & carbon fixation reactions

Choose the best description for the process when Carbon dioxide is used.

• photochemical reactions only

• carbon fixation reactions only

• both the photochemical & carbon fixation reactions

• neither the photochemical & carbon fixation reactions