Photosynthesis
This lesson covers:
- What 'photosynthesis' is
- The word and symbol equations for photosynthesis
- What a plant needs glucose for
Which of the following absorbs the energy required for photosynthesis?
Glucose
Chlorophyll
Starch
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In what part of the cell does photosynthesis take place?
In the cell wall
In ribosomes
In the cytoplasm
In chloroplasts
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What is the word equation for photosynthesis?
Carbon dioxide + ➔ glucose +
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What is CO2?
Water
Carbon Dioxide
Oxygen
Glucose
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What is H2O?
Glucose
Oxygen
Carbon Dioxide
Water
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What is the chemical symbol equation for photosynthesis?
6CO2 + 6H2O ➔ C6H12O6 + 6O2
O2 + H2O ➔ C6H12O6 + CO2
CO2 + H2O ➔ C6H12O6 + O2
6O2 + 6H2O ➔ C6H12O6 + 6CO2
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Which type of reaction is photosynthesis?
Exothermic
Ectothermic
Thermal
Endothermic
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What can the glucose made during photosynthesis be used for?
Respiration
Stored as starch for later
Photosynthesis
Osmosis
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What is the molecular formula for glucose?
C6H12O6
C6H2O
C16H2O6
C8H13O3
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How do plants get the carbon dioxide required for photosynthesis?
It diffuses from the soil into the root hair cells by osmosis
It diffuses from the air into the leaves via stomata
They absorb it by active transport
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How do plants get the water required for photosynthesis?
It diffuses from the soil into the root hair cells by osmosis
It diffuses from the air into the leaves via stomata
They absorb it by active transport
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What makes starch a useful long term storage molecule?
(Select all that apply)
It is compact
It can easily be broken down when needed
It requires energy to make
It is insoluble in water
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One use of glucose is to make amino acids.
What else do plants need to make amino acids?
Phosphate ions
Potassium ions
Nitrate ions
Magnesium ions
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What are the main uses of glucose in plants?
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Which useful energy transfer or conversion happens overall in photosynthesis?
Chemical ➔ light
Light ➔ chemical
Light ➔ heat
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