Font size
WorksheetsCH 8
Total questions: 24
Worksheet time: 13mins
Photosynthesis converts ______ energy into ______ energy
chemical, solar
chemical, chemical
solar, chemical
solar, solar
Virtually every food consumed by humans is originally derived from sunlight.
How is meat ultimately derived from sunlight?
Animals utilize the heat from the sun for body temperature which supports the metabolic processes necessary to make muscle tissue
The animals are mostly diurnal and will only eat during the day. Thus, the sun provides the light needed to support this diurnal lifestyle
Animals require sunlight to survive and thrive so the meat that people consume is supported by sunlight
The animals are fed a plant-based diet and use that energy (originally derived from the sun) to build the proteins that people consume when they eat meat
Thylakoids exist in stacks inside the thylakoid lumen. What is the term for these stacks?
granum
stroma
mesophyll
chloroplast
In C4 plants, the initial enzyme that fixes carbon dioxide is
RuBisCo
RuBp
G3AP
PEP carboxylase
What wavelengths do plants use during photosynthesis?
reds
oranges
yellows
blues
violets
What is an example of a Photoautotroph?
Plant
mushroom
Cow
Deep Sea sulfur-bacteria
What is an example of a Chemoautotroph?
plant
Deep Sea sulfur-bacteria
lion
cyanobacteria
What is an example of a Heterotroph?
most bacteria
cyanobacteria
green algae
plant
In what mechanism is photophosphorylation is most similar to?
carbon fixation
substrate-level phosphorylation in glycolysis
oxidative phosphorylation in cellular respiration
reduction of NADP+
Where do the light-dependent reactions take place?
thylakoid membrane
stroma
thylakoid lumen
intermembrane space
What is the waste product of photosynthesis?
water
carbon dioxide
oxygen
hydrogen
Which statement correctly describes carbon fixation?
the use of ATP and NADPH to reduce CO2
the conversion of CO2 into an organic compound
the use of RuBisCO to form 3-PGA
the production of carbohydrate molecules from G3P
In which compartment of the plant cell do the light-independent reactions of photosynthesis take place?
mitochondria
vacuole
stroma
thylakoid
The light reactions of photosynthesis supply the Calvin cycle with
CO2 and ATP
H2O and NADPH
ATP and NADPH
light energy
Where does the gas exchange necessary to support photosynthesis take place?
thylakoids
stomata
mesophyll
chlorophyll
Which of the following statements is a correct distinction between autotrophs and heterotrophs?
Only heterotrophs require chemical compounds from the environment
Cellular respiration is unique to heterotrophs
Autotrophs, but not heterotrophs, can nourish themselves beginning with CO2 and other nutrients that are inorganic
Only heterotrophs have mitochondria
Which molecule must enter the Calvin cycle continually for the light-independent reactions to take place?
CO2
3-PGA
RuBisCO
RuBP
Plants restrict water loss by closing their stomata.
True
False
Three of the same species of plant are each grown under a different colored light for the same amount of time. Plant A is grown under blue light, Plant B is grown under green light, and Plant C is grown under orange light. Assuming the plants use only chlorophyll a and chlorophyll b for photosynthesis, what would be the predicted order of the plants from most growth to least growth?
A, C, B
C, A, B
B, A, C
A, B, C
Which of the following does not occur during the Calvin cycle?
release of oxygen
oxidation of NADPH
carbon fixation
regeneration of the CO2 acceptor
Which process is most directly driven by light energy?
ATP synthesis
creation of a pH gradient by pumping protons across the thylakoid membrane
excitation of electrons from chlorophyll molecules
reduction of NADP+ molecules
Which statement is true?
One glucose molecule is produced after six turns
The Calvin cycle requires direct light input
The Calvin cycle produces two ATP molecules
Chlorophyll is hydrolyzed into glucose in the stroma
Smaller wavelengths of light correlate to smaller energy levels.
True
False
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
Both types of plants make most of their sugar in the dark
In both cases, only photosystem I is used
