Photosynthesis

Which of the following statements is true for all cells?

• They use solar energy.
• They use photosynthesis.
• They use chemical energy.
• They use chemosynthesis.

Where does the chemical energy to produce ATP come from?

• the conversion of ATP to ADP
• the use of chemicals from the environment to build sugars
• the addition of a phosphate group to ATP
• the breakdown of carbon-based molecules into smaller molecules

Energy is released from an ATP molecule for cellular processes when it

• has a phosphate group removed.
• stores an extra phosphate.
• converts a phosphate group to ADP.
• produces a sugar molecule.

Which of the following is the source of energy used in chemosynthesis?

• sunlight
• heat from hydrothermal vents
• chemical compounds
• amino acids

The main light-absorbing molecules found in plant leaves are called

• chloroplasts.
• thylakoids.
• chlorophyll.
• grana.

The function of the light-dependent reactions is to

• build sugars.
• capture and transfer energy.
• release carbon dioxide.
• form water molecules.

The light-independent reactions of photosynthesis need

• carbon dioxide.
• oxygen.
• water.
• cellulose.