WorksheetsPhotosynthesis Quiz ~ 2025
Total questions: 20
Worksheet time: 12mins
Which components make up the structure of an ATP molecule?
adenine, ribose, and two phosphate groups
adenine, ribose, and three phosphate groups
adenine, glucose, and three phosphate groups
ribose, chlorophyll, and three phosphate groups
Which of the following structures is NOT found in an ADP molecule?
structure A
structure B
structure C
structure D
Scarlett is learning about how plants make their own food. She wonders, plants get the energy they need for photosynthesis by absorbing
high-energy sugars
chlorophyll a
chlorophyll b
sunlight
Noah is looking at a garden full of plants and wonders why most of them appear green. He learns that chlorophyll
absorbs green light
absorbs violet light
does not absorb green light
does not absorb violet light
Which labeled structure represents a granum?
structure A
structure B
structure C
structure D
The thylakoid membranes in chloroplasts are organized into which of the following structures?
Stroma
Grana
Cristae
Matrix
The thylakoids are found within the
stroma
cytoplasm
nucleus
cell wall
Which process is initiated in plants when chlorophyll absorbs sunlight?
Electrons in chlorophyll are excited to a higher energy state
Chlorophyll is converted into glucose
Chlorophyll releases oxygen directly
Fat molecules are broken down for energy
Which molecule acts as a carrier for high-energy electrons during photosynthesis (hint: think over mitt)?
H2O
carbon dioxide
NADP+
oxygen
James is conducting an experiment where he collects the gas released from a plant placed in bright sunlight at a temperature of 27°C. The gas being collected is probably
oxygen
carbon dioxide
ATP
glucose
Harper sets up two jars at home: in jar A, she places a candle and a small potted plant, and in jar B, she places only a candle. After lighting both candles and sealing the jars, she observes that the candle in jar A burns longer than the candle in jar B. Why might the candle in jar A burn longer than the candle in jar B?
Carbon dioxide produced by the plant allows the candle to burn longer
Chlorophyll produced by the plant allows the candle to burn longer
Glucose produced by the plant allows the candle to burn longer
Oxygen produced by the plant allows the candle to burn longer.
Which part of the chloroplast is directly involved in capturing light energy during photosynthesis?
stroma
mitochondria
thylakoid membrane
outer membrane
Which molecules are produced during the light-dependent stage of photosynthesis?
glucose, ATP, and oxygen gas
ATP, NADPH, and oxygen gas
NADPH, carbon dioxide gas, and glucose
oxygen gas, carbon dioxide gas, and ATP
Which process occurs in the stroma of the chloroplast?
Light-dependent reactions generate oxygen.
ATP is synthesized by ATP synthase.
The Calvin cycle fixes carbon dioxide.
Electrons are transferred through photosystems.
Which of the following is a characteristic of the Calvin cycle but not of the light-dependent reactions?
It produces glucose
It occurs in the thylakoid membrane
It releases oxygen
It uses sunlight directly
What is the effect on the rate of photosynthesis if the light intensity is increased beyond a certain point?
It continues to increase without limit.
It starts to decrease steadily.
It reaches a maximum and remains constant.
It stops completely.
Label the diagram for photosynthesis.
Carbon DIoxide
NADPH
ATP
Sugars
Oxygen
Water
NADP+
ADP
Thylakoid Membrane
Stroma
What is the primary role of chlorophyll in photosynthesis?
(a)
To absorb water
To produce glucose
To release oxygen
