Cells

Question 1

What does the nucleus of a cell contain?

Answer 1

The genetic information of the cell

Question 2

What happens in the cytoplasm?

Answer 2

Many chemical reactions take place

Question 3

What does the cell membrane do?

Answer 3

Keeps the cell together and controls what goes in and out of the cell

Question 4

What happens in the mitochondria?

Answer 4

Energy is released by respiration

Question 5

What happens in the ribosomes?

Answer 5

Proteins are made

Question 6

What type of cell has a cell wall?

Answer 6

A plant cell

Question 7

What does the cell wall do?

Answer 7

Supports the cell

Question 8

What type of cell contains a vacuole?

Answer 8

A plant cell

Question 9

What is a vacuole?

Answer 9

A storage space filled with sap

Question 10

What type of cell contains chloroplasts?

Answer 10

A plant cell

Question 11

What are chloroplasts?

Answer 11

Green discs that allow the plant to make food by photosynthesis

Question 12

What are prokaryotes?

Answer 12

Single-celled organisms

Question 13

Give an example of a prokaryote

Answer 13

Bacteria

Question 14

What are eukaryotes?

Answer 14

Organisms made of eukaryotic cells

Question 15

Give two examples of eukaryotes

Answer 15

Animals and plants

Question 16

What is a stem cell?

Answer 16

An undifferentiated cell, which can differentiate into many different types of cell

Question 17

What is a specialised cell?

Answer 17

A cell, which performs a specific function

Question 18

What is differentiation?

Answer 18

The process by which a cell becomes specialised for its job

Question 19

Give three examples of specialised cells

Answer 19

e.g. nerve cells, sperm cells, muscle cells, root hair cells

Question 20

What are cell organelles?

Answer 20

The components within cells

Question 21

Give two examples of cell organelles

Answer 21

Nucleus and ribosome

Question 22

What are plasmids?

Answer 22

Small rings of DNA found in bacteria cells

Question 23

What is the purpose of magnification?

Answer 23

To make things look bigger

Question 24

What is the equation for magnification?

Answer 24

Magnification = Image size / Real size

Question 25

What is resolution?

Answer 25

The ability to distinguish between two points

Question 26

What does high resolution give?

Answer 26

A sharper image

Question 27

Name four things found in both animal and plant cells

Answer 27

Cell membrane, cytoplasm, nucleus, ribosomes and mitochondria

Question 28

What do sperm cells carry?

Answer 28

Half the genetic information

Question 29

Give one characteristic of a sperm cell and why it's useful

Answer 29

Tails to swim towards the egg

Question 30

What are red blood cells adapted to do?

Answer 30

Carry oxygen to cells and carbon dioxide away from them

Question 31

How long can a nerve cell be?

Answer 31

Upto 2m

Question 32

Why are nerve cells so long?

Answer 32

To carry messages around the body

Question 33

What can muscle cells do and why?

Answer 33

Change their length to help us move

Question 34

What do root hair cells have and why?

Answer 34

A bigger surface area to take in water from the soil

Question 35

What do palisade cells contain and why?

Answer 35

Chloroplasts to help the plant make food by photosynthesis

Question 36

Where are ciliated epithelial cells found?

Answer 36

In the tubes leading to the lungs and in the oviduct

Question 37

What is the oviduct?

Answer 37

The fallopian tube

Question 38

What do the hairs (cilia) on a ciliated epithelial cell do?

Answer 38

They move dirt out of the lungs and help to move eggs along the oviduct

Question 39

What type of cell is a prokaryotic cell?

Answer 39

A bacterial cell

Question 40

Name eight organelles in a bacterial cell.

Answer 40

Plasmids, mitochondria, ribosomes, flagellum, chromosomes, slime capsule, cell wall and cell membrane