Organisms and reactions

Question 1

State the first level of organisation in a multi-cellular organism.

Answer 1

Cells

Question 2

State one example of an animal tissue

Answer 2

Nervous tissue

where nerve cells work together to transmit messages around the body

Question 3

State one example of an organ

Answer 3

Heart

pumps blood

Question 4

State one example of an organ system

Answer 4

Reproductive system

produces sperm and egg cells for the production of new organisms, also where the feats develops

Question 5

State one example of a multi cellular organism

Answer 5

Humans

Question 6

State what a bone is

Answer 6

A living tissue which stores white blood cells and red blood cells

Question 7

What is a skeleton

Answer 7

All bones connect to form the muscular skeletal system.

Question 8

State four functions of the skeleton

Answer 8

Supports the body
Protects vital organs
Help the body move
Make blood cells

Question 9

Name the tissue that causes your skeleton to move

Answer 9

Muscles

Question 10

Name the tissue tat produces red and white blood cells

Answer 10

Bone marrow

Question 11

State where joints are found

Answer 11

When two or more bones join together.

Question 12

Name two types of hinge joint

Answer 12

Knee and elbow

Question 13

State the unit of force

Answer 13

Newton’s

Question 14

State why muscle is a tissue

Answer 14

Lots of muscle cells work together to cause movement.

Question 15

Name three groups of muscles in the body used for movement

Answer 15

Triceps- 
straighten the arm
Abdominals-
Move the torso to breathe
Calf muscles- pull the heel up and point the toes

Question 16

State what happens to the length of a muscle when it contracts

Answer 16

Short

Question 17

Name four key components found in an animal cell

Answer 17

Nucleus
Cell membrane
Cytoplasm
Mitochondria

Question 18

State the function of mitochondria

Answer 18

Where respiration happens. Energy transfers for the organism

Question 19

Name the cell components that are only found in plant cells

Answer 19

Cell wall
vacuole
chloroplasts

Question 20

What is found inside a vacuole

Answer 20

Cell sap

Keeps the cell firm

Question 21

Write down what specialised cell means

Answer 21

A cell that has structural adaptations to carry out a particular job

Question 22

State the function of a nerve cell

Answer 22

Carrying messages around the body

Question 23

Name the component, normally found in animal cells, that is missing in a red blood cell.

Answer 23

They have no nucleus

Question 24

Name two features that help a sperm cell to do its job

Answer 24

Streamline head
Helps swimming
Tail
To propel itself forward

Question 25

State two features that tell you that a leaf cell comes from a plant, not an animal.

Answer 25

Chloroplasts carry out photosynthesis | Vacuole helps keep the cell firm

Question 26

Describe what a salt is

Answer 26

When an acid chemically reacts with metal compounds or an acid with metal elements.

Question 27

Name the salt made when sodium hydroxide reacts with hydrochloric acid

Answer 27

Sodium chloride | and water

Question 28

State what an element is

Answer 28

A substance that only contains one type of atom.

Question 29

State what the periodic table is

Answer 29

It lists and groups elements together

Question 30

Describe six properties of a typical non-metal element

Answer 30

``` Brittle (breaks easily) Dull Poor conductor of heat Poor conductor of electricity Low density (light for its size) Low melting point ```

Question 31

Describe three physical properties of a typical metal

Answer 31

Malleable Shiny Good conductor of heat