Organisms and reactions Flashcards

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1
Q

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

A

Cells

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2
Q

State one example of an animal tissue

A

Nervous tissue

where nerve cells work together to transmit messages around the body

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3
Q

State one example of an organ

A

Heart

pumps blood

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4
Q

State one example of an organ system

A

Reproductive system

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

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5
Q

State one example of a multi cellular organism

A

Humans

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6
Q

State what a bone is

A

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

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7
Q

What is a skeleton

A

All bones connect to form the muscular skeletal system.

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8
Q

State four functions of the skeleton

A

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

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9
Q

Name the tissue that causes your skeleton to move

A

Muscles

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10
Q

Name the tissue tat produces red and white blood cells

A

Bone marrow

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11
Q

State where joints are found

A

When two or more bones join together.

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12
Q

Name two types of hinge joint

A

Knee and elbow

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13
Q

State the unit of force

A

Newton’s

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14
Q

State why muscle is a tissue

A

Lots of muscle cells work together to cause movement.

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15
Q

Name three groups of muscles in the body used for movement

A
Triceps- 
straighten the arm
Abdominals-
Move the torso to breathe
Calf muscles- pull the heel up and point the toes
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16
Q

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

A

Short

17
Q

Name four key components found in an animal cell

A

Nucleus
Cell membrane
Cytoplasm
Mitochondria

18
Q

State the function of mitochondria

A

Where respiration happens. Energy transfers for the organism

19
Q

Name the cell components that are only found in plant cells

A

Cell wall
vacuole
chloroplasts

20
Q

What is found inside a vacuole

A

Cell sap

Keeps the cell firm

21
Q

Write down what specialised cell means

A

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

22
Q

State the function of a nerve cell

A

Carrying messages around the body

23
Q

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

A

They have no nucleus

24
Q

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

A

Streamline head
Helps swimming
Tail
To propel itself forward

25
Q

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

A

Chloroplasts carry out photosynthesis

Vacuole helps keep the cell firm

26
Q

Describe what a salt is

A

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

27
Q

Name the salt made when sodium hydroxide reacts with hydrochloric acid

A

Sodium chloride

and water

28
Q

State what an element is

A

A substance that only contains one type of atom.

29
Q

State what the periodic table is

A

It lists and groups elements together

30
Q

Describe six properties of a typical non-metal element

A
Brittle (breaks easily)
Dull
Poor conductor of heat
Poor conductor of electricity
Low density (light for its size)
Low melting point
31
Q

Describe three physical properties of a typical metal

A

Malleable
Shiny
Good conductor of heat