Welcome to the Quiz!
This quiz contains 13 questions from a mix of 1 subtopics.
What is the main function of chloroplasts?
to produce ATP for cellular respiration
to absorb light energy to drive photosynthesis
to synthesise proteins
to store water
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Where are chloroplasts primarily found in plants?
epidermal cells
root cells
mesophyll tissues of leaves
stem cells
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Which of the following is NOT a role of chloroplasts?
to absorb light energy to drive photosynthesis
to produce ATP for cellular respiration
to convert light energy into chemical energy
to store sugars as starch grains
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How many membranes surround chloroplasts?
two
three
one
four
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What are the flattened sacs inside chloroplasts that contain photosynthetic pigments?
starch grains
stroma
lamellae
thylakoids
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What are stacks of thylakoids called?
ribosomes
lamellae
stroma
grana
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Where do the light-independent reactions of photosynthesis occur in chloroplasts?
stroma
lamellae
grana
thylakoids
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What drives the light-dependent reactions of photosynthesis?
the absorption of water by roots
the diffusion of carbon dioxide into leaves
the synthesis of glucose
the absorption of light energy by photosynthetic pigments
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What is the term for the membranous extensions that connect thylakoids in chloroplasts?
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What does an absorption spectrum show?
the rate of photosynthesis at different wavelengths of light
the Rf values of different pigments
the range of wavelengths absorbed by photosynthetic pigments
the distance traveled by pigments in chromatography
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Which of the following is NOT a component of a photosystem?
(Select all that apply)
starch grains
ribosomes
reaction centre
light-harvesting system
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What happens in the reaction centre of a photosystem?
light energy is absorbed directly from the sun
ATP is produced
high-energy electrons are emitted
CO2 is absorbed
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What does the Rf value of a pigment represent?
the ratio of the distance travelled by the pigment to the distance travelled by the solvent
the wavelength of light absorbed by the pigment
the rate of photosynthesis driven by the pigment
the distance travelled by the solvent
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