term1 Definition1term2 Definition2term3 Definition3
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light energy.
CO2 and ATP.
ATP and NADPH.
H2O and NADPH.
sugar and O2.
H2O → photosystem I → photosystem II
H2O → NADPH → Calvin cycle
NADPH → electron transport chain → O2
NADPH → chlorophyll → Calvin cycle
NADPH → O2 → CO2
How is photosynthesis similar in C4 plants and CAM plants?
In both cases, rubisco is not used to fix carbon initially.
Both types of plants make sugar without the Calvin cycle.
In both cases, thylakoids are not involved in photosynthesis.
In both cases, only photosystem I is used.
Both types of plants make most of their sugar in the dark.
In both cases, rubisco is not used to fix carbon initially
Which of the following does not occur during the Calvin cycle?
oxidation of NADPH
carbon fixation
consumption of ATP
release of oxygen
regeneration of the CO2 acceptor
In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____.
X-rays and ultraviolet radiation
infrared radiation and radio waves
ultraviolet radiation and infrared radiation
infrared radiation and microwaves
radio waves and microwaves
Which of the following is a product of the light reactions of photosynthesis?
high-energy photons
water and CO2
oxygen, ATP, and NADPH
NADP+ and RuBP
glyceraldehyde-3-phosphate
The overall function of the Calvin cycle is _____.
capturing sunlight
producing carbon dioxide
splitting water
making sugar
oxidizing glucose
C4 plants occur more commonly in desert conditions because _____.
they produce water as a product of their photosynthetic pathways
they can fix carbon at the lower CO2 concentrations that develop when the stomata are closed
the stomata open at night and close in the day
they produce carbon dioxide internally via photorespiration
they store carbon by incorporating CO2 into organic acids that are later catabolized
What is the basic role of CO2 in photosynthesis?
CO2 is a source of electrons in the formation of organic molecules.
CO2 is taken in by plants as a form of inverse respiration, in which carbon dioxide is “breathed in” and oxygen is “breathed out.”
CO2 is fixed or incorporated into organic molecules.
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