Organisms

Question 1

amoeba

Answer 1

A uni-cellular organism.

Question 2

antagonistic muscle pair

Answer 2

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

Question 3

bone

Answer 3

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

Question 4

Bone marrow

Answer 4

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

Question 5

Cartilage

Answer 5

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

Question 6

cell

Answer 6

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

Question 7

cell membrane

Answer 7

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

Question 8

cell wall

Answer 8

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

Question 9

chloroplast

Answer 9

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

Question 10

circulatory system

Answer 10

Organ system that transports substances around the body.

Question 11

concentration

Answer 11

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

Question 12

cytoplasm

Answer 12

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

Question 13

digestive system

Answer 13

Organ system that breaks down and then absorbs food molecules.

Question 14

flagellum/ flagella

Answer 14

A tail-like structure that allows euglenas to move.

Question 15

immune system

Answer 15

The organ system that protects the body against infections.

Question 16

joints

Answer 16

Parts of the skeleton where bones meet.

Question 17

leaf cell

Answer 17

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

Question 18

ligaments

Answer 18

Connect bones in joints.

Question 19

microscope

Answer 19

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

Question 20

mitochondria

Answer 20

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

Question 21

multi-cellular (organism)

Answer 21

Living things made up of many types of cell.

Question 22

muscular skeletal system

Answer 22

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

Question 23

nerve cell

Answer 23

An animal cell that transmits electrical impulses around the body.

Question 24

nucleus

Answer 24

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

Question 25

organ

Answer 25

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

Question 26

organ system

Answer 26

A group of organs working together to perform a function.

Question 27

red blood cell

Answer 27

An animal cell that transports oxygen around the body.

Question 28

reproductive system

Answer 28

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

Question 29

respiration

Answer 29

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

Question 30

respiratory system

Answer 30

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

Question 31

root hair cell

Answer 31

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

Question 32

skeleton

Answer 32

All the bones in an organism.

Question 33

specialised cell

Answer 33

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

Question 34

sperm cell

Answer 34

A cell containing male genetic material.

Question 35

structural adaptations (of cells)

Answer 35

Special features to help a cell carry out its functions.

Question 36

tendons

Answer 36

Connect muscles to bones.

Question 37

tissue

Answer 37

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

Question 38

uni-cellular (organism)

Answer 38

Living things made up of one cell.

Question 39

vacuole

Answer 39

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