Cells and Body Systems

Question 1

Microscope

Answer 1

Instrument used to see objects which are too small to be seen with the eye

Question 2

Focus

Answer 2

Used to sharpen the image seen in a microscope

Question 3

Eyepiece

Answer 3

Lens at the top of the microscope which magnifies by 10X

Question 4

Stage

Answer 4

Platform which holds the specimen

Question 5

Objective lens

Answer 5

One of 3 lenses which magnify by 4, 10 or 20X

Question 6

Slide

Answer 6

Glass rectangle to hold the specimen

Question 7

Cover slip

Answer 7

Small glass square which covers the specimen

Question 8

Stain

Answer 8

Used so that a specimen can be seen more clearly

Question 9

Iodine

Answer 9

Used so that a specimen can be seen more clearly

Question 10

Methylene blue

Answer 10

Stain used for animal cells

Question 11

Nucleus

Answer 11

Contains DNA which controls the cell activities

Question 12

Cytoplasm

Answer 12

The site of chemical reactions

Question 13

Cell membrane

Answer 13

Controls what substances go in and out of a cell

Question 14

Vacuole

Answer 14

Stores dissolved salts and sugars

Question 15

Cell wall

Answer 15

Supports the cell and helps it keep its shape

Question 16

Chloroplast

Answer 16

Where sugars are made in the cell by photosynthesis

Question 17

Micrometre

Answer 17

1/1000th of a mm (1mm = 1000 µm)

Question 18

Structure

Answer 18

Describes what a part of a cell is like

Question 19

Function

Answer 19

Describes the job that a structure does

Question 20

Specialised

Answer 20

Adapted for a particular function

Question 21

Multi-cellular

Answer 21

Made of many cells

Question 22

Tissue

Answer 22

A group of specialised cells

Question 23

Organ

Answer 23

A structure containing different types of tissue

Question 24

Organ system

Answer 24

A group of organs working together

Question 25

Digestive system

Answer 25

Breaks down food and absorbs nutrients

Question 26

Circulatory system

Answer 26

Circulates blood, which carries materials around the body

Question 27

Respiratory system

Answer 27

Used for exchange of gases with the environment