Matter & Cells

Question 1

What is volume?

Answer 1

Volume is the amount of space an object occupies

Question 2

What is mass?

Answer 2

Mass is the number of particles making up an object

Question 3

What are the 3 states in matter?

Answer 3

1) Solid State
2) Liquid State
3) Gas State

Question 4

What are the different types of particles that makes up the three common states?

Answer 4

Atoms, molecules, ions

Question 5

Define the term ‘Evaporation’

Answer 5

The procsss by which a liquid changes to a vapour or gas at temperatures below its boiling point.

Question 6

Melting Point

Answer 6

The temperature at which a solid changes to liquid.

Question 7

Boiling Point

Answer 7

The temperature at which a liquid changes to a gas.

Question 8

Freezing point

Answer 8

The temperature at which a liquid changes to a solid.

Question 9

Function of Cell Membrane

Answer 9

Controls what substances enter and leave the cell.

Question 10

Function of Cytoplasm

Answer 10

Supports the organelles. The site of many chemical reactions.

Question 11

Function of Nucleus

Answer 11

Controls the characteristics and functioning of the cell

Question 12

Function of Mitochondrion

Answer 12

Where respiration occurs to release energy for the cell

Question 13

Function of Ribosome

Answer 13

Where proteins are produced

Question 14

Function of Vacuole

Answer 14

Stores food, cell secretions and cell waste. Supports the plant when turgid

Question 15

Function of Cell Wall

Answer 15

Supports and protects the cell and gives it shape

Question 16

Function of Chloroplast

Answer 16

Where photosynthesis occurs to produce food for the plant.

Question 17

Define the term ‘Diffusion’

Answer 17

Overall movement of particles from an area of high water concentration to an area of low water concentration until there is equal distribution of particles

Question 18

Define the term ‘Osmosis’

Answer 18

The movement of water molecules through a partially permeable membrane from an area of high water concentration to an area of low concentration

Question 19

Define the term ‘Matter’

Answer 19

Matter is anything that has mass and volume

Question 20

Cell

Answer 20

The basic structure and functional unit of all living organisms

Question 21

Plasma

Answer 21

An ionised gas consisting of negatively charged electrons and positively charged ions which posess very large amounts of kinetic energy

Question 22

When is a plasma formed?

Answer 22

When a gas is heated strongly enough that the atoms in it lose electrons

Question 23

Microbe / Microorganisms

Answer 23

Extremely small organisms that include viruses, bacteria and some fungi

Question 24

Active Transport

Answer 24

The movement of particles through membranes against a concentration gradient using energy released in respiration

Question 25

Importance of Diffusion in living Organisms

Answer 25

Oxygen
Carbon dioxide