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Science Year 9 > Biology > Flashcards

Biology Flashcards

1
Q

Function of the Nucleus?

A

Controls the activities of the cell.

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2
Q

Function of the Chloroplast?

A

Absorbs light energy for photosynthesis.

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3
Q

Function of the Cell Wall?

A

outer layer of the cell which provides strength and protection which supports the plant.

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4
Q

Function of Cell Membrane?

A

Controls the movement of substances in and out of the cell.

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5
Q

Function of Mitochondria?

A

Where most energy is released in respiration?

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6
Q

Function of ribosomes?

A

responsible for synthesising proteins

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7
Q

Function of cytoplasm?

A

(Jelly-like substance) where most chemical reactions take place

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8
Q

Red blood cells

A

contains haemoglobin, has no nucleus, transports oxygen

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9
Q

White blood cells

A

has a nucleus, produces antibodies to fight infection

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10
Q

What are Platelets

A

involved in blood clotting to prevent and stop bleeding.

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11
Q

What is an Artery?

A

Carries oxygenated blood away from the heart

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12
Q

What is a vein?

A

Carries deoxygenated blood to the heart

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13
Q

What is a Capillary?

A

Takes waste products away from tissues, much smaller that arteries and veins

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14
Q

What are Enzymes?

A

Proteins that function as biological catalysts.

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15
Q

Why is gamma radiation tracer used instead of beta or alpha?

A

Gamma rays can pass through the skin

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16
Q

What is Respiration?

A

the release of energy from food substances into living cells

17
Q

What is Aerobic respiration?

A

When your body IS ABLE to supply the cells with the oxygen needed to break down glucose

18
Q

What is Anaerobic respiration?

A

When your body IS NOT ABLE to supply the cells with the oxygen needed to break down glucose

19
Q

What is used to measure radiation?

A

Geiger counter

20
Q

Features of living cells?

A

Cytoplasm, Enzymes, Cell membrane, Ribosomes, DNA

21
Q

Function of Stomach?

A

Digests food

22
Q

Function of small intestine?

A

Further digests food and absorbs nutrients

23
Q

Function of large intestine?

A

Absorbs water molecules from remaining undigested food

24
Q

Function of liver?

A

Produces bile

25
Q

Function of Pancreas?

A

Produces digestive enzymes

26
Q

Function of salivary glands?

A

Produces digestive juices

27
Q

What is an oesophagus?

A

muscular tube which moves ingested food to the stomach

28
Q

What are organs?

A

Group of tissues that work together to perform a special function

29
Q

What are tissues?

A

Group of cells that have similar structure that function together as a unit

Science Year 9 (3 decks)

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