Cells

Question 1

Name the 7 characteristics of life

Answer 1

Nutrition
Respiration
Excretion
Growth
Response
Reproduction
Movement

Question 2

Cells are….

Answer 2

A basic unit of life

Question 3

Tissues

Answer 3

A group of similar cells carrying out the same function

Question 4

Organs

Answer 4

A group of different tissues working together to carry out the same function

Question 5

Organ system

Answer 5

A group of organs working together to carry out the same function

Question 6

Organism

Answer 6

A plant or animal which is made up of cells, organs and organ systems

Question 7

Nucleus

Answer 7

Contains the genetic material that controls what cells do
(Chromosomes or genes)

Question 8

Cell membrane

Answer 8

Holds the cell together and controls what passes in and out of the cell

Question 9

Cell wall

Answer 9

A rigid coat of cellulose that gives the plant cell its shape and support and strengthens the cell

Question 10

Cytoplasm

Answer 10

A jelly like sub substance where chemical reactions take place
(eg. Breaking down of nutrients for energy)

Question 11

Large vacuole

Answer 11

Stores food and waste products such as salts and sugars

Question 12

Mitochondrion

Answer 12

Place where energy is released from nutrients by respiration

Question 13

Chloroplast

Answer 13

Were photosynthesis occurs as it contains chlorophyll, a green pigment that traps the light energy from the Sun

Question 14

Ribosomes

Answer 14

Make proteins

Question 15

Muscle cells

Answer 15

Are long and flat and can expand and contract to help move bones

Question 16

Root hair cells

Answer 16

In plant cells, have long narrow projections so that they can fit through soil particles to reach water

Question 17

What do we use to dye a plant cell?

Answer 17

Iodine - highlights specific structures in cell
(Nucleus, cell wall)

Question 18

What do you we used to die an animal cell?

Answer 18

Methylene blue - highlights specific structures in cell
(Nucleus, cell membrane)

Question 19

What is a stem cell?

Answer 19

A single cell that can replicate itself or differentiate into many cell types

Question 20

Where are stem cells found?

Answer 20

In the tissue of the embryos, the umbiblical cord, the placenta

Question 21

Where are adult stem cells found?

Answer 21

In some tissues in the body

Question 22

The cells in an embryo are known as

Answer 22

Stem cells

Question 23

Where do cells come from?

Answer 23

Pre-existing cells

Question 24

What are all living things made up of?

Answer 24

Cells

Question 25

What are unicellular organisms?

Answer 25

Some plants and animals that are made up of only one cell