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WorksheetsPhotosynthesis 2024
Total questions: 77
Worksheet time: 59mins
What is the goal of photosynthesis?
To make ATP
To make carbon dioxide
To make glucose
To make oxygen
What is needed for photosynthesis to take place? Select all that apply.
Sunlight
Carbon Dioxide
Glucose
Oxygen
Water
Photosynthesis has two steps. What is needed in the first step but not in the 2nd?
Glucose
Oxygen
High pH
Light
A student is studying rates of photosynthesis in cells. What organelle would he expect to find more of in a cell conducting higher rates of photosynthesis?
Nucleus
Mitochondria
Chloroplast
Ribosomes
In the desert, what difficulties does a plant face in terms of photosynthesis?
Obtaining and keeping the water needed for photosynthesis
Releasing waste products such as oxygen without many animals nearby
Obtaining and keeping the solar energy needed for photosynthesis
Creating mitochondria to conduct photosynthesis
A student is studying the effect of water on photosynthesis rates. What organism would he most likely use in his experiment?
Fungus like a mushroom
Corn
Caterpillars
Bacteria
What causes plants to appear green?
Chlorophyll
Carotenoids
Golgi Bodies
Cell Membrane
A student wants to study factors that directly affect the rate of photosynthesis. Which variable change below would best help the student with his studies?
Changing the location of each organism
Changing the amount of oxygen available to each organism
Changing the way he measures the photosynthesis rate
Changing the amount of water each organism receives
What is the ultimate source of energy for photosynthesis?
Glucose
Water
Sunlight
Carbon Dioxide
Think!! Why do leaves change colors in the Fall?
Increased production of chlorophyll
Decreased chlorophyll concentration, allowing carotenoids to show
Changing waterfall amounts in the fall compared to summer
Increased glucose production in plants as they prepare for winter
Aerobic cellular respiration uses the Sun to make energy.
True
False
During photosynthesis, ATP is used to make carbohydrates (glucose).
True
False
Cellular Respiration releases energy.
True
False
Photosynthesis uses carbohydrates (glucose) to make ATP.
True
False
Photosynthesis converts 1 molecule of glucose into 6 molecules of carbon and 6 molecules of water.
True
False
Cellular respiration removes carbon dioxide from the air.
True
False
Photosynthesis releases oxygen into the air.
True
False
Cellular respiration removes carbon dioxide from the air.
True
False
Cellular respiration removes oxygen from the air.
True
False
Photosynthesis releases oxygen into the air.
True
False
6CO2 + 6H20 + energy ------> C6H12O6 + 6O2 is the equation for ?
Cellular Respiration
Photosynthesis
The reactants in cellular respiration are ?
6C02 and 6H2O
C6H12O6 and 6O2
The products of photosynthesis are ?
C6H12O6 and 6O2
6CO2 and 6H2O
What is created as a result of Photosynthesis
ATP Energy
Water (H2O) and Carbon Dioxide (CO2)
Proteins and lipids
Glucose (C6H12O6) + Oxygen (O2)
In which cell organelle does PHOTOSYNTHESIS take place?
The chloroplast
The mitochondria
The cytoplasm
The golgi apparatus
In photosynthesis, energy is transformed from
Light energy to chemical energy
Chemical energy to light energy
ATP energy to light energy
Light energy to dark energy
Which organelle is in this picture?
Mitochondria
Ribosome
Chloroplast
Nucleus
Which reactions belong to photosynthesis (check all that apply)
Calvin Cycle
Light Dependent Reactions
Glycolysis
Kreb’s Cycle
Which reactions take place during Cellular Respiration? Check all that apply
Kreb’s Cycle
Glycolysis
Calvin Cycle
Light Dependent Reactions
ETC (Electron Transport Chain)
Where do the light dependent reactions occur?
The thylakoids; part of the chloroplast
The stroma; part of the chloroplast
In the mitochondria
In the cytoplasm
How does most of the water needed by the plant get into its leaves?
It enters through the stomata
The roots absorb it and then it travels up the stem
It's made during a chemical reaction in the leaf
The flowers capture water and deliver it to the leaves
Which 3 are inputs (reactants) for photosynthesis?
(Pick 3)
Carbon Dioxide
Oxygen
Water
Sugar/glucose
Sunlight
Process used by plants and other autotrophs to capture light energy and use it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches
Photosynthesis
ATP synthase
Calvin Cycle
Photosystems
Series of electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions
NADP+
Light-independent
Light-dependent
Electron transport chains
Saclike photosynthetic membranes found in chloroplasts
Stroma
Thylakoid
Pigments
Photosystems
Set of reactions in photosynthesis that do not require light; energy from ATP and NADPH is used to build high-energy compounds such as sugar; also called the Calvin Cycle
Light-dependent
Light-independent
Electron transport chain
ATP synthase
Set of reactions in photosynthesis that use energy from light to produce ATP and NADPH
Light-dependent
Light-independent
Calvin Cycle
Electron transport chains
What two energy molecules are made by the light reaction? Select both answers.
NADPH
glucose
ATP
oxygen gas
What is the goal of the Calvin cycle
make sugar
make oxygen gas
make ATP
make water
Which molecule supplies chlorophyll with electrons
sun
water
oxygen gas
NADPH
The oxygen gas we breathe comes from the splitting of water during the light reaction
True
False
The carbon dioxide is used by the plant during
the light reaction
the Calvin cycle
Which molecule safely carries high energy electrons during Photosynthesis?
NADPH
ATP
Glucose
Phosphates
What part of the leaf allows carbon dioxide to enter the plant and oxygen to leave it?
Chlorophyll
Phloem
Xylem
Stoma
What is the definition of osmosis?
movement of molecules from an area of low concentration to high concentration
movement of molecules from an area of high concentration to low concentration
movement of molecules from an area of low concentration to low concentration
What is the process of moving water up the plant and evaporation of water from the leaf?
Translocation
Transcription
Transpiration
Translation
Match the letter in the diagram to its correct label.
A
Sunlight
B
Carbon Dioxide
C
Glucose
D
Water
E
Oxygen
Photosynthesis can still happen without sunlight.
True
False
In the image above, the red question mark represents a molecule that is made as a waste product during the light-dependent reactions? What is red question mark?
Carbon Dioxide
Glucose
ATP
Oxygen
In the image above, the blue question mark represents a molecule that is needed during the light-independent reactions (or Calvin cycle) in order to make glucose? What is blue question mark?
Oxygen
Carbon dioxide
ATP
Nitrogen
Farts
In the image above, the green question mark (final product) represents a molecule that is made during light-independent reactions (Calvin Cycle)? What is green question mark?
Oxygen
Sugar/Glucose
Carbon Dioxide
Water
True or False: Plants carry out both photosynthesis and cellular respiration.
True
False
Which statement best summarizes how the light-dependent reactions and light-independent reactions (Calvin cycle) work together during photosynthesis?
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make ATP
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make energy in the form of sunlight
The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose
The light-dependent reactions capture energy and the light-independent reactions use that energy to make ATP
What outputs are made during the Light-Dependent reaction that then move into and become inputs of the Light-Independent reaction (Calvin cycle)? Hint: What gets made during the first step of photosynthesis and then moves into the second step?
H2O & CO2
ATP & NADPH
ATP & H2O
CO2 & NADPH
If a students runs an experiment where they grow plants with more or less carbon dioxide in the environment, which would you expect to happen?
Plants grown with less CO2 grow faster and larger
Plants grown with more CO2 grow faster and larger
Plants grown with less CO2 do not grow at all
Plants grown with more CO2 grow slower and smaller
What is the role of chlorophyll in photosynthesis?
It absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water.
It releases oxygen during the process of photosynthesis.
It helps in the absorption of carbon dioxide from the atmosphere.
It helps in the absorption of water from the soil.
The oxygen gas we breathe (O2) comes from the splitting of water molecules during the light reaction phase of photosynthesis.
True
False
Carbon dioxide is used by the plant during
the light reaction
the Calvin cycle
Why do CAM plants open their stomata at night?
It just happens
To take in oxygen
To collect Carbon Dioxide
None of the above
In C3 photosynthesis, the reactions that require ATP take place in
the light reactions alone
the calvin cycle only
both the light reactions and the calvin cycle
the citric acid cycle
CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they
fix CO2 into organic acids during the night when temperatures are cooler.
fix CO2 into by combining it with RuBP in the Calvin cycle.
obtain CO2 through their roots during the day.
fix CO2 into organic acids in the mesophyll cells, which do not rely on stomata.
Which of these would be considered a CAM pathway plant?
cactus
corn
elm tree
algae
Which type of plant fixes carbon only at night?
C3
C4
CAM
all of these
CAM plants have a different adaptation to what climate?
cold and wet
hot and dry
both
none of the above
Which stage of photosynthesis results in the production of hydrogen ions? (recall what an ion is)
What are the stacks of thylakoid membrane in the chloroplast called?
Photosystems
Chlorophyll
Stroma
Grana
The process by which a plant draws water from its surrounding into the plant.
(a)
Which of the following factors does NOT affect the rate of photosynthesis?
Light intensity
Temperature
Soil type
Carbon dioxide concentration
🌱Photosynthesis 🌱
Carbon dioxide (a) + Water (b) + ☼ → Glucose (c) + Oxygen gas (d)
