Cells and the Microscope

Question 1

How many steps are involved in using a microscope?

Answer 1

8

Question 2

Name the steps involved in using a microscope

Answer 2

1. Clean the lens 2. Make sure the lowest power objective lens is over the stage. 3. Switch on the light.
2. Put a drop of water in the middle of the slide. 5. Place a sample in the drop of water. 6. Lower the coverslip at a 45 degree angle to get rid of air bubbles. 7. Focus on the sample with the lowest power objective lens and sketch what is seen. 8. Move to the next power objective lens and sketch what is seen.

Question 3

what is an organism made up of?

Answer 3

cells tissues organs system organism

Question 4

what is another name for a living thing?

Answer 4

an organism

Question 5

Why does an organism grow?

Answer 5

because cell division happens where an organism splits in two and so on.

Question 6

what is a cell made up of?

Answer 6

Cell membrane – allows substances to pass in and out of the cell
•Cytoplasm – watery fluid that gives support to the cell
•Nucleus – controls the cells activities
•Vacuole – storage of food, water, wastes
•Cell wall (only in plant cell) – gives strength to the cell
•Chloroplasts (only in plant cell) – contains chlorophyll to help make food

Question 7

Cell membrane function

Answer 7

allows substances to pass in and out of the cell

Question 8

cytoplasm function

Answer 8

Cytoplasm – watery fluid that gives support to the cell

Question 9

nucleus function

Answer 9

Nucleus – controls the cells activities

Question 10

vacuole function

Answer 10

Vacuole – storage of food, water, wastes

Question 11

cell wall function

Answer 11

Cell wall (only in plant cell) – gives strength to the cell

Question 12

chloroplasts function

Answer 12

Chloroplasts (only in plant cell) – contains chlorophyll to help make food

Question 13

what are chloroplasts

Answer 13

.

Question 14

what is a cell wall

Answer 14

.

Question 15

what is a vacuole

Answer 15

.

Question 16

what is a nucleus

Answer 16

.

Question 17

what is cytoplasm

Answer 17

.

Question 18

what is a cell membrane

Answer 18

.

Question 19

what is a cell

Answer 19

.

Question 20

what do all cells have

Answer 20

.

Question 21

what do plants cells have

Answer 21

.

Question 22

what is a microscope?

Answer 22

.

Question 23

what are the four main parts of a microscope

Answer 23

.

Question 24

what is the difference between a plant and an animal cell

Answer 24

.

Question 25

draw cells and a microscope

Answer 25

.

Question 26

how do you calculate magnification

Answer 26

.

Question 27

how do you prepare and examine something under a microscope

Answer 27

.

Question 28

name some different types of cells and their functions

Answer 28

.

Question 29

what is the function of an eyepiece

Answer 29

.

Question 30

what is the function of focus knobs

Answer 30

.

Question 31

what is the function of the stage

Answer 31

.

Question 32

what is the function of the objective lens

Answer 32

.

Question 33

what is a system

Answer 33

.

Question 34

what is an organ

Answer 34

.

Question 35

what is a tissue

Answer 35

.

Question 36

what is growth

Answer 36

.

Question 37

what is iodine

Answer 37

.

Question 38

what is a coverslip

Answer 38

.

Question 39

how do cells grow

Answer 39

by dividing

Question 40

know other labels on a microscope.

Answer 40

.

Question 41

What do each of the two new cells contain?

Answer 41

one of the two identical nuclei

Question 42

what happens to the nucleus when a cell divides?

Answer 42

it divides into two seperate nuclei

Question 43

how are cells organised and how do they work?

Answer 43

Each cell co-operates with other similar cells. Groups of similar cells then combine together to co-operate with each other.

Question 44

what do plants and animals contain?

Answer 44

many different types of cells

Question 45

give an example of two different types of animal cells.

Answer 45

red blood cells and the cells on the inside of your mouth

Question 46

give an example of two different types of plant cells.

Answer 46

the cells on the outside of a root of a plant and the green cells in a leaf

Question 47

name the things that make cells similar?

Answer 47

colour, size, shape or structure

Question 48

what does a tissue contain?

Answer 48

large numbers of similar cells

Question 49

what is an organ made of

Answer 49

.

Question 50

what is a system made of

Answer 50

.

Question 51

groups of large numbers of similar cells that carry out different functions form...

Answer 51

different tissues

Question 52

name different types of tissues and their function

Answer 52

Red blood carries oxygen. | Muscle contracts to allow movement.

Question 53

give an example of an organ and the type/s of tissue/s it is made of

Answer 53

heart | muscle tissue and it has a good blood supply

Question 54

give examples of animal organs

Answer 54

heart, lungs, brain, kidneys

Question 55

give examples of plant organs

Answer 55

leaves roots and flowers

Question 56

give an example of a system

Answer 56

the eyes, ears, skin, nose and tongue are organs that join together to form the sensory system

Question 57

what is an organism

Answer 57

a living thing ie. a human or a tree

Question 58

what is the function of the nosepiece

Answer 58

to rotate to allow the use of the different lenses located on the nosepiece

Question 59

what is the function of the mirror

Answer 59

to reflect light up through the object

Question 60

what is the function of... the coarse focus knob the fine focus knob

Answer 60

= to bring the object roughly into focus | = allows for precise focusing (not on all microscopes)

Question 61

what do systems work together to do?

Answer 61

to allow the organism to function properly and stay alive

Question 62

what do some microscopes have instead of a mirror

Answer 62

a light

Question 63

what does magnification mean

Answer 63

how many times bigger the object appears when seen through a microscope

Question 64

how do microscopes work

Answer 64

by passing light through a thin slice of an object

Question 65

why is the microscope focused

Answer 65

to give a clear view of an object

Question 66

what does contolling the amount of light shining through the object also help to do?

Answer 66

form a clear view

Question 67

name to ways of forming a clear view using a microscope

Answer 67

contolling the amount of light shining through the object and focusing in on the object

Question 68

what does the eyepiece lens usually have marked on it | give an example

Answer 68

the magnification | x10 = it magnifies the object ten times

Question 69

each objective lens gives a different...

Answer 69

magnification

Question 70

what type of lens do you start an experiment using?

Answer 70

the lowest magnification lenses