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autotroph: weed; heterotrophs: cat, bird, caterpillar
A cat eats a bird, which ate a caterpillar that chewed on a weed. Which of these organisms are autotrophs? Which ones are heterotrophs
sunlight
Plants use as an energy source to drive photosynthesis.
thylakoid membrane
In plants, photosynthetic eukaryotes, and cyanobacteria, the light-dependent reactions proceed in/at the
the atmosphere
Most of the carbon that land plants use for photosynthesis comes from .
Chlorophyll is green because it absorbs green light.
Which of the following statements is incorrect?
Pigments absorb light of certain wavelengths only.
Some accessory pigments are antioxidants.
Chlorophyll is green because it absorbs green light.
electrons are ejected from its special pair
When a photosystem absorbs light energy, ______.
ATP forms
In the light-dependent reactions, _____.
Hydrogen ions
In the light-dependent reactions, what accumulates in the thylakoid compartment of chloroplasts?
Water
The atoms in the oxygen molecules released during photosynthesis come from
stroma
In chloroplasts, the light-independent reactions proceed at/in the
carbon fixation
The Calvin–Benson cycle starts with _____
O2
Which of the following substances does not participate in the Calvin–Benson cycle?
ATP
O2
NADPH
RuBP
PGAL
CO2
Limited gas exchange
Closed stomata _____
photorespiration
In C3 plants, makes sugar production inefficient when stomata close on hot, dry days
calvin-benson cycle product
PGAL formation
rubisco function
CO2 fixation
self-feeder
autotroph
electrons cycle back to photosystem I
ATP forms: NADPH does not
problem in C3 plants
photorespiration
converts light to chemical energy
photosynthesis
absorbs light
pigment
water molecules split
photolysis in photosynthesis