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Photosynthesis test
Photosynthesis
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Sophia G
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Cards (23)
What process must a plant carry out to grow and survive?
Photosynthesis
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Where does photosynthesis take place in a plant?
In the leaves, specifically
chloroplasts
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What pigment in chloroplasts absorbs light?
Chlorophyll
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What does chlorophyll absorb from the environment?
Light energy
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What are the reactants in the photosynthesis equation?
Carbon dioxide
and
water
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What is the chemical equation for photosynthesis?
6
CO<sub>2</sub>
+ 6 H<sub>2</sub>O →
C<sub>6</sub>H<sub>12</sub>O<sub>6</sub>
+ 6 O<sub>2</sub>
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Why is light written above the reaction line in the photosynthesis equation?
Because the reaction requires
light energy
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What type of reaction is photosynthesis classified as?
Endothermic
reaction
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How does energy transfer occur in photosynthesis?
From the environment to
chloroplasts
by light
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How does carbon dioxide enter the leaves?
Through the
stomata
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How is water transported to the leaves?
Via the
xylem
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What is the main product that plants want from photosynthesis?
Glucose
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What do plants sometimes use oxygen for?
For
respiration
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What is one way glucose is used by plants?
For
cellular respiration
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What are the five main uses of glucose in plants?
Cellular respiration
Making cellulose
Making starch
Making amino acids
Making oils and fats
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How does glucose function like a battery for plants?
It stores
energy
that can be released
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What is cellulose made from?
Combined
glucose
molecules
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Why is starch a better form of glucose for storage?
It is more
compact
and
insoluble
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When do plants typically break down starch to glucose?
When
photosynthesis
isn't happening much
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How do plants make amino acids?
By combining
glucose
with
nitrate ions
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What is the final use of glucose mentioned for plants?
Making
oils and fats
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What factors affect the rate of photosynthesis?
Light intensity
,
temperature
,
CO<sub>2</sub>
concentration,
chlorophyll
amount
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What will be explored in the next video?
Factors affecting the
rate
of
photosynthesis
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