science learning homework 2!

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Q1. What is the word equation for photosynthesis?
Answer : carbon dioxide + water = oxygen + glucose
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Q2. What four factors can affect the rate of photosynthesis?
Answer: light intensity, carbon dioxide concentration, temperature and amount of chlorophyll
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Q3. Write the equation which links gravitational field strength, height, mass and gravitational potential energy
Answer: gravitational potential energy= mass x gravitational field strength x height
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Q4. What is atomic number?
Answer: It is the number of protons present in atom.
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Q5. How can you calculate the number of neutrons in an atom?
Answer: number of neutrons= Mass number- number of protons
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Q6. Where does the heart drug digitalis originate from?
Answer: Foxgloves
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Q7. Where does the painkiller aspirin originate from?
Answer: willow tree
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Q8. What are the three ways white blood cells defend us against pathogens?
Answer: a) phagocytosis- ingest and destroy pathogens. b) produce antibodies c) produce antitoxins
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Other cards in this set

Card 2

Front

Q2. What four factors can affect the rate of photosynthesis?

Back

Answer: light intensity, carbon dioxide concentration, temperature and amount of chlorophyll

Card 3

Front

Q3. Write the equation which links gravitational field strength, height, mass and gravitational potential energy

Back

Preview of the front of card 3

Card 4

Front

Q4. What is atomic number?

Back

Preview of the front of card 4

Card 5

Front

Q5. How can you calculate the number of neutrons in an atom?

Back

Preview of the front of card 5
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