Biology Chapter 5 review questions

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Plants produce oxygen when they photosynthesize. Where does the oxygen come from? a. splitting water molecules b. ATP synthesis c. the electron transport chain d. chlorophyll

a. splitting water molecules

Which statement correctly describes carbon fixation? a. the conversion of CO2 to an organic compound b. the use of RUBISCO to form 3-PGA c. the production of carbohydrate molecules from G3P d. the formation of RuBP from G3P molecules e. the use of ATP and NADPH to reduce CO2

a. the conversion of CO2 to an organic compound

What is the molecule that leaves the Calvin cycle to be converted into glucose? a. ADP b. G3P c. RuBP d. 3-PGA

b. G3P

Which statement about thylakoids in eukaryotes is not correct? a. Thylakoids are assembled into stacks. b. Thylakoids exist as a maze of folded membranes. c. The space surrounding thylakoids is called stroma. d. Thylakoids contain chlorophyll.

b. Thylakoids exist as a maze of folded membranes.

What is the energy of a photon first used to do in photosynthesis? a. split a water molecule b. energize an electron c. produce ATP d. synthesize glucose

b. energize an electron

Which color(s) of light does chlorophyll a reflect? a. red and blue b. green c. red d. blue

b. green

Which molecule absorbs the energy of a photon in photosynthesis? a. ATP b. glucose c. chlorophyll d. water

c. chlorophyll

From where does a heterotroph directly obtain its energy? a. the sun b. the sun and eating other organisms c. eating other organisms d. simple chemicals in the environment

c. eating other organisms

What two products result from photosynthesis? a. water and carbon dioxide b. water and oxygen c. glucose and oxygen d. glucose and carbon dioxide

c. glucose and oxygen

Where in plant cells does the Calvin cycle take place? a. thylakoid membrane b. thylakoid space c. stroma d. granum

c. stroma


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