Chapter 3- Cells

Question 1

Microscope

Answer 1

An instrument for viewing small objects

Question 2

Cells

Answer 2

The building blocks of living things

Question 3

Nucleus

Answer 3

The central part of the cell made up of atoms and neutrons

Question 4

Chromosomes

Answer 4

tiny, thread like structure inside the nucleus of a cell. They contain DNA which carries genetic information.

Question 5

DNA

Answer 5

The chemical substance found in all living things which tells you their genetic information.

Question 6

Mitosis

Answer 6

The type of cell division where two daughter cells have the same amount of chromosomes as the parent nucleus.

Question 7

Clones

Answer 7

Identical copy of something

Question 8

Cytokinesis

Answer 8

cell division where the liquid and material of a parental cell is split to create two daughter cells

Question 9

Infectious diseases

Answer 9

Disease which can be transferred from one organism to another

Question 10

Non-infectious diseases

Answer 10

Diseases which cannot be transferred from one organism to another.

Question 11

Antibiotics

Answer 11

Substances taken from micro organisms used to kill bacteria in the body.

Question 12

Disinfectants

Answer 12

Substances used to kill bacteria on non living objects

Question 13

Antiseptics

Answer 13

Mild disinfectant used on the body to kill microbes

Question 14

Bacteriacidal

Answer 14

An antiseptic that can only kill bacteria

Question 15

Bacteriostatic

Answer 15

an antiseptic that only stops bacteria from growing or dividing

Question 16

Light microscopes

Answer 16

A microscope which can magnify things up to 1500 times

Question 17

Electron microscope

Answer 17

A microscope which can magnify things up to a million times

Question 18

Monocular

Answer 18

Describes a microscope which is used to see things only with one eye.

Question 19

Binocular

Answer 19

A microscope with two eye pieces.

Question 20

Stereo

Answer 20

Describes a microscope where the specimen is viewed with both eyes

Question 21

Magnification

Answer 21

The amount of times the image of object has been enlarged using a lens

Question 22

Unicellular

Answer 22

Describes and organism with only one cell

Question 23

Multicellular

Answer 23

Describes an organism with more than one cell

Question 24

Micrometer

Answer 24

A length of one millionth of a meter

Question 25

Nanometer

Answer 25

A unit of measurement equal to one billionth of a meter

Question 26

Phloem

Answer 26

A type of tissue which transports sugars to other parts of the plant

Question 27

Translocation

Answer 27

The transport of materials e.g water

Question 28

Xylem Vessels

Answer 28

Pipelines for the flow of water up plants

Question 29

Lignin

Answer 29

A hard substance in the walls of dead xylem cells that make up the tube carrying water up plants.