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biology
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photosynthesis
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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 in
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 used in photosynthesis?
Carbon dioxide
and
water
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What is the chemical equation for photosynthesis?
6
CO2
+ 6 H2O →
C6H12O6
+
6 O2
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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 is energy transferred to chloroplasts during photosynthesis?
By light from the
environment
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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 primary product that plants want from photosynthesis?
Glucose
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What do plants sometimes use oxygen for?
For
respiration
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Why is glucose considered essential for plants?
It is used for
energy
and growth
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What are the five main uses of glucose in plants?
Cellular respiration
for energy
Making
cellulose
for cell walls
Forming
starch
for long-term storage
Producing
amino acids
with
nitrate ions
Creating
oils
and
fats
for energy storage
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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 used for long-term storage in plants?
It is
compact
and
insoluble
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When do plants typically break down starch to glucose?
When
photosynthesis
is low, like at night
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How do plants make amino acids?
By combining
glucose
with
nitrate ions
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What do plants use amino acids to create?
Proteins
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Why
are oils and fats important for seeds?
They serve as future energy resources
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What factors affect the rate of photosynthesis?
Light intensity
,
temperature
, CO2 concentration,
chlorophyll
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