B1: Levels of Organisation Flashcards

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1
Q

List 3 examples of organ systems.

A

Circulatory system

Respiratory system

Reproductive system

Skeletal system

Urinary system

Nervous system

Digestive system

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2
Q

What is the function (job) of the circulatory system?

A

Transports materials around the body in the blood.

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3
Q

Multicellular organisms have 5 levels of organisation.

List the levels in order of complexity (least complex first)

A

Cells

Tissues

Organs

Organ Systems

Organism

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4
Q

Many nerve cells joined together make a….

A

Nerve tissue

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5
Q

Identify 3 plant organs

A

Leaf - absorbs light for photosynthesis

Stem - holds plant upright

Root - anchors plant into ground and takes in water/minerals.

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6
Q

List 3 examples of specialised cells.

A

Red Blood Cell

Nerve Cell

Ciliated epithelial cell

Root hair cell

White blood cell

Muscle cell

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7
Q

What is an organ?

A

An organ is a gorup of tissues that work together to perform a certain function.

E.g. the digestive system contains many organs to digest food.

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8
Q

What is a tissue?

A

A group of similar cells working together to perform a specific function (job).

e.g. muscle tissue - contracts to allow movement.

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9
Q

What is meant by a specialised cell?

A

A cell that has adapted speciali features to carry out a specific function (job).

e.g. sperm cell has a tail to swim to the egg

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10
Q

An organism made from many cells working together is called a…

A

Multicellular Organism

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