Biology- B2

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How do we use mechanical breakdown to digest food?
To physically breakdown the food. E.g to use your teeth to breakdown food
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How do we use Chemical breakdown to digest food?
To chemically breakdown food.E.g the enzymes in the saliva.
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What route does your food travel?
Food enters mouth, teeth mechanically breaksdown food, saliva gets added to broken down food, then goes down the gullet, enzymes breaks the rest of the food down, moves into small intestine, large intestine then anus.
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What is amylase?
Amylase is a protein enzyme that catalyses (is the process of increasing the rate of a chemical reaction) hydrolysis of starch into sugars.
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Where would you find Amylase?
It is found in the saliva.
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What does Amylase do?
Begins the chemical process of digestion.
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What pH does amylase work best at?
pH5 as it broke down the quickest.
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What does red blood cells contain and what is their job?
Contains haemoglobin and carry oxygen around the body. Have no nucleus and a large surface area.
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What does white blood cells produce and what do they do?
Kill invading microbes by producing anti bodies or engulfing the microbe.
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What are platelets and what do they do?
Small bits of cells that lie around waiting for cut to happen so they can clot.
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All of the red blood cells, white blood cells, and platelets are carried around by plasma, what does it do?
Transports Carbon Dioxide and glucose as well as taking waste products to the kidneys.
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What is the mechanical breakdown of food in the oesophagus caused by?
Peristalsis
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What organ produces bile?
Liver
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Name the food groups
Fats, Fibres, Proteins, Carbohydrates, Vitamins and, Minerals
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What does the benedicts solution test for?
Glucose
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What does Amylase break down?
Starch + Carbs into sugar
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What system is the heart part of?
The circulatory system
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What components is the blood made up of?
Red blood cells, White blood Cells, Platelets and Plasma
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Name the organ systems:
Nervous system, Circulatory system, Respiratory system, Muscular system, Digestive aystem
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What is the structure of the red blood cell?
Bio- concave shape
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How are red blood cells adapted for their function?
To carry oxygen around the body and CO2
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What four things are found in plasma?
Food, CO2, Hormones, and Anti- bodies
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What are the two typed of White blood cells
phagocytes and Lymphocytes
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Name the blood vessels that carry blood around the body:
Capillaries, Arteries and Veins
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Name the organs that make up the circulatory system:
Heart, Blood Vessels
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Which gas enters the blood in the lungs?
Oxygen
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What are the 4 chambers of the heart?
Right atrium, Left atrium, Right ventricle, Left ventricle
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Other cards in this set

Card 2

Front

How do we use Chemical breakdown to digest food?

Back

To chemically breakdown food.E.g the enzymes in the saliva.

Card 3

Front

What route does your food travel?

Back

Preview of the front of card 3

Card 4

Front

What is amylase?

Back

Preview of the front of card 4

Card 5

Front

Where would you find Amylase?

Back

Preview of the front of card 5
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