Year 7 aut1 cells and microscope

Question 1

Nucleus

Answer 1

The part of the cell that holds the chromosomes, the nucleus controls the cells activities

Question 2

Cell membrane

Answer 2

A layer around the cell that acts like a barrier, it also controls what comes in and out of the cell

Question 3

Cytoplasm

Answer 3

This is the jelly like substance inside the cell, chemical reactions take place here.

Question 4

Mitochondria

Answer 4

This is where respiration happens when energy is released from food.

Question 5

Chloroplast

Answer 5

Found in plant cells and in some unicellular organisms e.g euglena. It traps light for photosynthesis to take place.

Question 6

Vacuole

Answer 6

It stores food for the plant

Question 7

Contractile vacuole

Answer 7

To control how much water enters the body of a cell

Question 8

Flangellum

Answer 8

Used to move around in water/fluids like a fin

Question 9

Eye spot

Answer 9

Just like an eye an eye spot gives partial vision to unicellular organisms

Question 10

Pseudopod

Answer 10

An organelle that unicellular organisms use to reach out and grab food

Question 11

Eyepiece lens

Answer 11

The lens that you look through with your eye it has a magnification of x10

Question 12

Stage

Answer 12

The platform you put the glass slide on

Question 13

Coarse focus wheel

Answer 13

Used for adjusting the height of the stage

Question 14

Fine focus wheel

Answer 14

Used to adjust the fine detail in the microscope

Question 15

Cell wall

Answer 15

This is the outside layer of a plant cell, it gives the cell structure and support.

Question 16

Red blood cell

Answer 16

Does not have a nucleus and has haemoglobin to carry oxygeon

Question 17

Binary fission

Answer 17

Where a unicellular organism divides into two daughter cells

Question 18

Diffusion

Answer 18

Where particles move from a area of high concentration to low concentration by bouncing off each other

Question 19

Amoeba

Answer 19

A unicellular organism

Question 20

Hazard symbols

Answer 20

Symbols that tell you that the object is dangerous in multiple or just one way

Question 21

Total magnification

Answer 21

It is the total magnification that the objective lens and the eye piece lens make (e.g objective lens = x4, eye piece lens x10 eye piece lens x objective lens = 40 total magnification

Question 22

Unicellular organism

Answer 22

An organism that is only made up of one cell

Question 23

Permanent vacuole

Answer 23

This is a large cell in a plant cell that stores food (cell sap).

Question 24

Nerve cell

Answer 24

A cell that carry signals from your brain around to the rest of your body so that you can move (and most importantly eat sweets and chocolate :P )

Question 25

Muscle cell

Answer 25

Lets you move without these things you would be a flop of bones and stuff

Question 26

Living thing

Answer 26

Something that shares the 7 characteristics (movement,respiration,sensitivity,growth,reproduction,excretion,nutrition)

Question 27

Cell

Answer 27

Cells are the building blocks of life and all living things are made up of one cell or many cells

Question 28

Objective lens

Answer 28

There are 3 objective lens in a microscope the x4, x10 and x20 when you look down the microscope you should see the objective lens times the eye piece lenses power