Most of the carbon that land plants use for photosynthesis comes from ______________.
the atmosphere.
Plants use ____________ as an energy source to drive photosynthesis.
sunlight
Which of the following statements is incorrect?
a. pigments absorb light of certain wavelengths only
b. many accessory pigments are multipurpose molecules
c. chlorophyll a is green because it absorbs green light
c.
In the light-dependent reactions, ___________.
a. carbon dioxide is fixed
b. ATP forms
c. CO2 accepts electrons
d. sugars form
ATP forms
When a photosystem absorbes light, ______________.
a. sugar phosphates are produced
b. electrons are transferred to ATP
c. it ejects electrons
c.
The atoms in the oxygen molecules released during photosynthesis come from _____________.
Water
The Calvin-Benson cycle starts when ____________.
a. light is available
b. carbon is fixed
c. electrons leave a photosystem
carbon is fixed
Closed stomata ____________.
a. limit gas exchange
b. permit water loss
c. restrict photosynthesis
d. absorb light
a.
True of false? Plants make all of their ATP by photsynthesis.
False
In the third statge of aerobic respiration, ___________ is the final acceptor of electrons.
O2
In eukaryotes, the final reactions of aerobic respiration are completed in the __________.
mitochondria
In eukaryotes, the final reactions of fermentation are completed in the ___________.
cytoplasm
Your body cells can break down _________ as a source of energy to fuel ATP production.
a. fatty acids
b. glycerol
c. amino acids
d. all of above
d
Which of the following metabolic pathways require molecular oxygen?
a. aerobic respiration
b. lactate fermentation
c. alcoholic fermentation
d. photosynthesis
a, d.
product of glycolysis
pyruvate
no oxygen required
anaerobic
aerobic respiration in eukaryotes is in this structure.
mitochondria
like an antenna
pigment
big in the atomsphere
carbon dioxide
converts light to chemical energy
photosynthesis
carbon fixing enzyme
rubisco
Type of plant that uses only the Calvin-Benson cycle to fix carbon.
C3 plant
Type of plant that fixes carbon twice in two cell types.
C4 plant
Type of plant that fixes carbon twice, at different times of day.
CAM plant
Light-independent reactions of photosynthesis; cyclic carbon-fixing pathway that forms sugars from CO2.
Calvin-Benson cycle