Biology B2 1.6 Organ systems

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What is an organ system?
A group of organs working together.
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What is the digestive system in humans adapted to do?
Exchange substances with the environment.
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What are stems, roots and leaves?
Plant organs.
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In what way must the food you eat be changed and why?
It must be changed from insoluble molecules into soluble molecules so that they can be absorbed into the blood.
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What is responsible for changing the food you eat from insoluble molecules into soluble molecules?
The digestive system.
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What is the digestive system?
A muscular tube which includes: glands, such as the pancreas and salivary glands; stomach and small intestine; liver; small intestine; large intestine.
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What do the salivary glands produce?
Digestive juices.
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What occurs in the small intestines?
Digestion, it is where the absorption of soluble food occurs.
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What does the liver produce?
Bile.
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What occurs in the large intestine?
Water is absorbed from the undigested food, producing faeces.
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Where is soluble food absorbed?
In the small intestine.
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**TO AVOID LOSING MARKS MAKE SURE YOU KNOW ALL THE KEY WORDS IN THIS CHAPTER BECAUSE THESE BIOLOGICAL TERMS ARE IMPORTANT FOR MOST OF THE TOPIC IN THE UNIT**
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Card 2

Front

What is the digestive system in humans adapted to do?

Back

Exchange substances with the environment.

Card 3

Front

What are stems, roots and leaves?

Back

Preview of the front of card 3

Card 4

Front

In what way must the food you eat be changed and why?

Back

Preview of the front of card 4

Card 5

Front

What is responsible for changing the food you eat from insoluble molecules into soluble molecules?

Back

Preview of the front of card 5
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