Welcome to the Quiz!
This quiz contains 14 questions from a mix of 1 subtopics.
What is the main function of chloroplasts?
to synthesise proteins
to store water
to absorb light energy to drive photosynthesis
to produce ATP for cellular respiration
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Where are chloroplasts primarily found in plants?
stem cells
mesophyll tissues of leaves
root cells
epidermal cells
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Which of the following is NOT a role of chloroplasts?
to convert light energy into chemical energy
to produce ATP for cellular respiration
to store sugars as starch grains
to absorb light energy to drive photosynthesis
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How many membranes surround chloroplasts?
one
two
four
three
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What are the flattened sacs inside chloroplasts that contain photosynthetic pigments?
lamellae
stroma
starch grains
thylakoids
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What are stacks of thylakoids called?
grana
ribosomes
lamellae
stroma
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Where do the light-independent reactions of photosynthesis occur in chloroplasts?
lamellae
stroma
grana
thylakoids
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What drives the light-dependent reactions of photosynthesis?
the absorption of light energy by photosynthetic pigments
the absorption of water by roots
the diffusion of carbon dioxide into leaves
the synthesis of glucose
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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 distance traveled by pigments in chromatography
the rate of photosynthesis at different wavelengths of light
the range of wavelengths absorbed by photosynthetic pigments
the Rf values of different pigments
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Which of the following is NOT a component of a photosystem?
(Select all that apply)
ribosomes
starch grains
reaction centre
light-harvesting system
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What happens in the reaction centre of a photosystem?
CO2 is absorbed
high-energy electrons are emitted
light energy is absorbed directly from the sun
ATP is produced
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What does the Rf value of a pigment represent?
the wavelength of light absorbed by the pigment
the rate of photosynthesis driven by the pigment
the distance travelled by the solvent
the ratio of the distance travelled by the pigment to the distance travelled by the solvent
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What does an action spectrum show?
the rate of photosynthesis at different wavelengths of light
the distance traveled by pigments in chromatography
the Rf values of different pigments
the range of wavelengths absorbed by photosynthetic pigments
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