QUIZ 4.2 ( GRADED)

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.

What is the term for an organism that makes its own source of chemical energy?

• decomposer

• producer

• chloroplast

• protist

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.

Which of the following takes place in the light-dependent reactions of photosynthesis?

• Sugars are made.

• .Energy is captured.

• .Chlorophyll is pumped.

• CO2 is formed.

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