The yeast ferments the carbohydrates in the flour and release carbon dioxide - causes it to rise
13 of 22
Define 'photosynthesis'
Photosynthesis is a series of chemical reactions that uses energy from sunlight to produce food in plants
14 of 22
What is the symbol equation for photosynthesis?
6CO2 + 6H2O >(light energy)> C6H12O6 +6O2
15 of 22
Give 3 main ways plants use glucose
1. Respiration, 2.To make chemicals for Growth (made into proteins, nitrates, amino) 3. Stored as Starch
16 of 22
Name 3 factors that affect the rate of photosynthesis
1.amount of Light 2. amount of CO2 3. Temperature
17 of 22
Describe how to take a transect
Run a tape measure between 2 fixed points. Start at 1 end, collect data you want. Move along & collect data again. Keep collecting until you reach the end
18 of 22
What is a quadrat?
A square frame divided into a grid of 100 smaller squares used to make data collection quicker & easier e.g. plants
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Define 'diffusion'
Diffusion is the passive overall movement of particles from a region of their higher concentration to a region of their lower concentration, e.g. O2 + CO2 in plant leaves
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Define 'osmosis'
Osmosis is the overall movement of water from a dilute to a more concentrated solution through a partially permeable membrane
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Define 'Active transport'
Active transport is the overall movement of chemicals across a cell membrane from a region of lower concentration to a region of higher concentration using energy released by respiration
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Other cards in this set
Card 2
Front
What is the function of the cytoplasm?
Back
A gel-like substance where proetins likes enzymes are made. Some enzyme-controlled reactions take place here e.g. anaaerobic respiration
Card 3
Front
What is the function of the cell membrane?
Back
Card 4
Front
What is the function of the mitochondria?
Back
Card 5
Front
Do yeast cells have mitochondria, nucleus and cell wall?
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