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Photosynthesis
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Created by
Autumn Thompson-Kowal
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Cards (21)
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 in
chloroplasts
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What pigment in chloroplasts absorbs light for photosynthesis?
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?
Six molecules of
carbon dioxide
and
six
molecules of
water
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What is produced as a result of photosynthesis?
Glucose
and
oxygen
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What is the chemical equation for photosynthesis in symbols?
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 energy written above the reaction line in the photosynthesis equation?
Because the reaction
requires
light
energy
to take place
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What type of reaction is photosynthesis classified as?
An
endothermic
reaction
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How does energy transfer occur in photosynthesis?
Energy is transferred from the
environment
to
chloroplasts
by light
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How does carbon dioxide enter the leaves of a plant?
Through the
stomata
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How is water transported to the leaves of a plant?
By the
xylem
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What is the primary product that plants want from photosynthesis?
Glucose
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What do plants sometimes use the oxygen produced in photosynthesis for?
For
respiration
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What is one way glucose is used by plants?
For
cellular respiration
to release energy
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What are the five main uses of glucose in plants?
Cellular respiration
(energy release)
Making cellulose (strengthens
cell walls
)
Making starch (long-term energy storage)
Making amino acids (with
nitrate ions
)
Making oils and fats (energy resource for seeds)
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Why is starch a better form of glucose for long-term storage?
Because it is more compact and
insoluble
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When do plants typically break down stored starch to glucose?
When
photosynthesis
isn't happening much, like at night or in winter
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How do plants make amino acids?
By combining
glucose molecules
with
nitrate ions
from the soil
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What is the final use of glucose mentioned in the material?
Making
oils and fats
for energy storage
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What factors affect the rate of photosynthesis?
Light intensity
Temperature
Carbon dioxide concentration
Amount of
chlorophyll
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