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Energy for life: Diet & Digestion + Circulation Flashcards

(17 cards)

1
Q

example of a carb?

A

pasta, bread

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2
Q

example of a protein?

A

meat, egg

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3
Q

example of a lipid?

A

butter, fat

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4
Q

what is a vitamin?

A

fruit

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5
Q

what is a mineral?

A

vegetables

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6
Q

example of fibre?

A

whole-grain cereal

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7
Q

how is food moved through the gut by peristalsis?

A

When food is swallowed, the muscles in the esophagus contract, creating a wave-like movement that pushes the food down towards the stomach.

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8
Q

what do digestive enzymes do?

A

Digestive enzymes break down starch into glucose for absorption and energy production.

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9
Q

why do we need a transport system in multicellular organisms?

A

their large size and complex structure make it hard for substances to move by diffusion alone

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10
Q

what do red blood cells do?

A

transport oxygen to lungs

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11
Q

what do white blood cells do?

A

attack viruses

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12
Q

what do platelets do?

A

build blood clots

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13
Q

what do plasma?

A

carries platelets, red blood cells and white blood cells around the body

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14
Q

why are red blood cells shaped how they are?

A

the biconcave shape has more surface area for oxygen and without a nucleus, it allows for more haemoglobin storage

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15
Q

what are the 4 main chambers of the heart?

A

right atrium, left atrium, right ventricle, left ventricle

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16
Q

what are the 4 main blood vessels in the heart?

A

vena cava, aorta, pulmonary artery, pulmonary vein

17
Q

7 main parts of the circulatory system?

A

the heart, capillaries, veins, artery’s, pulmonary circulation, liver and kidneys