NEW Photosynthesis

Which of the following statements best describes the process of photosynthesis?

• plants use oxygen to make simple sugars
• chlorophyll builds sugars in the thylakoid membrane
• light breaks down water molecules and releases carbon dioxide
• chloroplasts absorb sunlight and store chemical energy

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

Where do the hydrogen ions for the photosystems of the light-dependent reactions come from?

• sugars
• sunlight
• acids
• water

Which phrase best describes the electron transport chain in photosynthesis?

• a chain of photosynthetic proteins located in the stroma
• a collection of enzymes used to make ADP
• a series of proteins located in the thylakoid membrane
• a group of enzymes that carries energy to the Calvin Cycle

Which molecule has the highest energy?

• adenosine diphosphate
• adenosine triphosphate
• carbohydrates
• nucleic acids

Energy is released from ATP when

• the third phosphate is added to the molecule
• the third phosphate is ripped off the molecule
• all three phosphates are ripped off the molecule
• all three phosphates are added to the molecule

1 Glucose = ________ ATP

• 30
• 36
• 63
• 6

Autotrophs ________________ while heterotrophs ________________.

• must consume food; make their own food
• make their own food; must consume food
• make their own food; also make their own food
• eat other autotrophs; eat autotrophs

What organelle holds the chlorophyll?

• Mitochondria

• Chloroplast

• Nucleus

• Ribosome