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