Biology

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What is tissue?
tissue is a group of cell with simillar structure and function. for example muscle tissue.
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What is an organ made from?
organs are made from a group of tissues. for example the stomach that conatins muscuar tissue, and glandular tissue.
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What is an organ system made from?
A group of organs working together. for example the digestive system.
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can you name four organs in the digestive system and their functions?
stomach, produces protease enzyme to break down food. small intestine, food is absorbed into the blood. liver, makes bile. pancrease, produces protease, amylase and lypase.
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can you Name 2 factors that affect the rate of diffusion?
concentration, the higher the concentration the faster the rate of reaction. surface area, the greater the surface area the faster the reaction.
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How is the small intestine adapted for diffusion?
it is folded to increase surface area. only one cell thick to decrease distance.
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What is difference between the concentration in two different places known as?
concentration gradient, the steeper the line, the greater the concentration gradient.
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How is lung tissue adapted for diffusion?
alveolus have a large surface area to increase rate of diffusion. quick exchange of nutrients and oxygen due to a good blood supply.
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Other cards in this set

Card 2

Front

What is an organ made from?

Back

organs are made from a group of tissues. for example the stomach that conatins muscuar tissue, and glandular tissue.

Card 3

Front

What is an organ system made from?

Back

Preview of the front of card 3

Card 4

Front

can you name four organs in the digestive system and their functions?

Back

Preview of the front of card 4

Card 5

Front

can you Name 2 factors that affect the rate of diffusion?

Back

Preview of the front of card 5
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