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Science year 7 > Organisms > Flashcards

Organisms Flashcards

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Biology 101 flashcards
1
Q

amoeba

A

A uni-cellular organism.

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2
Q

antagonistic muscle pair

A

A pair of muscles working in unison to create movement at a joint – as one muscle contracts, the other relaxes.

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3
Q

bone

A

A tissue that forms a hard structure, used to protect organs and for movement.

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4
Q

Bone marrow

A

Tissue found inside some bones where new blood cells are made.

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5
Q

Cartilage

A

Smooth tissue found at the end of bones. This reduces friction between them preventing rubbing.

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6
Q

cell

A

The smallest functional unit of a living organism. It contains parts to carry out life processes.

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7
Q

cell membrane

A

The cell component that surrounds the cell and controls movement of substances in and out.

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8
Q

cell wall

A

The cell component that surrounds the cell and strengthens it. In plant cells it is made of cellulose.

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9
Q

chloroplast

A

The plant cell component that absorbs light so the plant can make food by photosynthesis.

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10
Q

circulatory system

A

Organ system that transports substances around the body.

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11
Q

concentration

A

A measure of the number of particles in a given volume.

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12
Q

cytoplasm

A

Jelly-like substance (found in cells) where most chemical processes happen.

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13
Q

digestive system

A

Organ system that breaks down and then absorbs food molecules.

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14
Q

flagellum/ flagella

A

A tail-like structure that allows euglenas to move.

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15
Q

immune system

A

The organ system that protects the body against infections.

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16
Q

joints

A

Parts of the skeleton where bones meet.

17
Q

leaf cell

A

The plant cells that contain chloroplasts, where photosynthesis takes place.

18
Q

ligaments

A

Connect bones in joints.

19
Q

microscope

A

An optical instrument used to magnify objects, so small details can be seen clearly.

20
Q

mitochondria

A

Part of the cell where food molecules are broken down during the process of respiration, enabling energy transfer.

21
Q

multi-cellular (organism)

A

Living things made up of many types of cell.

22
Q

muscular skeletal system

A

The organ system in which muscles and bones work together to cause movement and support the body.

23
Q

nerve cell

A

An animal cell that transmits electrical impulses around the body.

24
Q

nucleus

A

The cell component that contains genetic material (DNA), which controls the cell’s activities.

25
Q

organ

A

Group of different tissues working together to carry out a function.

26
Q

organ system

A

A group of organs working together to perform a function.

27
Q

red blood cell

A

An animal cell that transports oxygen around the body.

28
Q

reproductive system

A

The organ systems that produce sperm and eggs, also where the fetus develops.

29
Q

respiration

A

A chemical reaction where food and oxygen are converted into water and carbon dioxide, enabling energy transfer.

30
Q

respiratory system

A

The organ system that replaces oxygen and removes carbon dioxide from blood.

31
Q

root hair cell

A

A plant cell that takes in water and minerals from the soil.

32
Q

skeleton

A

All the bones in an organism.

33
Q

specialised cell

A

A cell whose shape and structure enable it to perform a particular function.

34
Q

sperm cell

A

A cell containing male genetic material.

35
Q

structural adaptations (of cells)

A

Special features to help a cell carry out its functions.

36
Q

tendons

A

Connect muscles to bones.

37
Q

tissue

A

Group of cells of one type, working together to perform a function.

38
Q

uni-cellular (organism)

A

Living things made up of one cell.

39
Q

vacuole

A

The cell component that contains liquid, and can be used by plants to keep the cell rigid and store substances.

Science year 7 (6 decks)

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