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