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 chloroplasts
In the cytoplasm
In ribosomes
In the cell wall
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What is the word equation for photosynthesis?
Carbon dioxide + ➔ glucose +
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What is CO2?
Glucose
Carbon Dioxide
Oxygen
Water
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What is H2O?
Glucose
Water
Oxygen
Carbon Dioxide
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What is the chemical symbol equation for photosynthesis?
CO2 + H2O ➔ C6H12O6 + O2
O2 + H2O ➔ C6H12O6 + CO2
6O2 + 6H2O ➔ C6H12O6 + 6CO2
6CO2 + 6H2O ➔ C6H12O6 + 6O2
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Which type of reaction is photosynthesis?
Endothermic
Exothermic
Thermal
Ectothermic
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What can the glucose made during photosynthesis be used for?
Photosynthesis
Osmosis
Respiration
Stored as starch for later
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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?
They absorb it by active transport
It diffuses from the soil into the root hair cells by osmosis
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 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?
Phosphate ions
Nitrate ions
Potassium 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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