Science revision (B2, C2, P2)

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What does a quadrant square do?
Allows you to estimate the population of something in one area due to the number of the species found in that quadrant.
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What animals are usually captured by nets.
Flying insects like butterflies, dragonflies etc.
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What do pitfall traps do and how do they work?
They catch insects that walk across the ground, the insects fall into the jar and can't get back out.
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What do pooters do?
They capture insects by you sucking them through a tube into a jar. You can choose which insects you capture.
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The sample size effects the accuracy of the estimate, how?
The bigger your sample, the more accurate your estimate.
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What process do plants make their own food?
Photosynthesis.
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What does photosynthesis do?
It produces glucose from the sunlight.
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Where does photosynthesis take place?
Chloroplasts.
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Write the word equation for photosynthesis.
Carbon dioxide + water ------> glucose + oxygen.
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What does photosynthesis use energy from the sun for?
It changes carbon dioxide and water into glucose and oxygen.
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What is glucose?
Soluble.
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Name the symbol equation for photosynthesis.
6CO(2) + 6H2(2)O + 6O(2)
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Why can glucose diffuse in and out of cells easily?
Because they're small molecules.
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How is glucose used in respiration?
It releases energy so they can convert the rest of the glucose into various other useful substances.
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How is glucose used to make cell walls?
It's converted into cellulose for making cell walls, especially in a plant that is growing rapidly.
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How is glucose stored in seeds?
Its turned into lipids (fats and oils) for storage.
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Where is glucose stored when changed into starch?
Roots, stems and leaves.
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How is glucose made into proteins?
It's combined with nitrates that are collected from the soil. It is then converted into amino acids and then into proteins.
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What are proteins used for?
Growth and repair.
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Why is starch good for storage?
It's insoluble. This prevents it from bloating the storage cells by not drawing water in like glucose.
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Other cards in this set

Card 2

Front

What animals are usually captured by nets.

Back

Flying insects like butterflies, dragonflies etc.

Card 3

Front

What do pitfall traps do and how do they work?

Back

Preview of the front of card 3

Card 4

Front

What do pooters do?

Back

Preview of the front of card 4

Card 5

Front

The sample size effects the accuracy of the estimate, how?

Back

Preview of the front of card 5
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