Investigating photosynthesis (AQA GCSE Biology): Flashcards
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Practise the cards
14 cards from this deck
Type of plant used to study photosynthesis
Type of plant used to study photosynthesis
Aquatic plants like pondweed
What aquatic plants produce during photosynthesis
What aquatic plants produce during photosynthesis
Oxygen bubbles
Factor investigated in pondweed experiment
Factor investigated in pondweed experiment
Light intensity
Purpose of sodium hydrogen carbonate solution
Purpose of sodium hydrogen carbonate solution
Provides carbon dioxide ()
Why use sodium hydrogen carbonate in experiment
Why use sodium hydrogen carbonate in experiment
Ensures doesn't limit the reaction
Why use LED lamp instead of regular lamp
Why use LED lamp instead of regular lamp
To avoid heating the pondweed
How to calculate mean from 3 runs
How to calculate mean from 3 runs
Add the 3 runs and divide by
Axes for photosynthesis experiment graph
Axes for photosynthesis experiment graph
Distance (horizontal), mean bubbles (vertical)
Pattern as lamp distance increases
Pattern as lamp distance increases
Fewer bubbles produced per minute
Why fewer bubbles at greater distances
Why fewer bubbles at greater distances
Less light intensity = slower photosynthesis
Why repeat bubble counts at each distance
Why repeat bubble counts at each distance
For reliability/consistent results
Alternative aquatic organism to pondweed
Alternative aquatic organism to pondweed
Algae
What bubble count measures in experiment
What bubble count measures in experiment
Rate of photosynthesis
How light intensity affects photosynthesis rate
How light intensity affects photosynthesis rate
More light = faster photosynthesis