Body Systems

Question 1

What are the 7 characteristics of life

Answer 1

M r s  G R E N
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition

Question 2

Digestive system

Answer 2

Stomach intestines

Breaks down your food

Question 3

Respiratory system

Answer 3

Lungs heart

Takes in oxygen and gets rid of carbon dioxide

Question 4

Circulatory system

Answer 4

Heart lungs

Sends non oxygenated blood to the lungs and the oxygenated blood gets pumped round ur body

Question 5

Excretory system

Answer 5

Liver kidneys

Gets rid of waste products in your body

Question 6

Reproductive system

Answer 6

Testicles uterous

Makes babies

Question 7

Nervous system

Answer 7

Brain spinal cord
Receives info from skin joints and muscles 
Makes your joints move
Makes you react to things 
Remember things think things and plan

Question 8

What is in an animal cell

Answer 8

DNA chromosomes nucleus cytoplasm cell membrane nuclear membrane

Question 9

What is in a plant cell

Answer 9

Cell membrane cytoplasm nucleus DNA chromosomes vacuole

Chloroplast cell wall

Question 10

What are the differences and similarities between the 2 cells

Answer 10

Both structured the same both eukaryotic cells
Different sizes
Plant cells have more structures

Question 11

What do the structures do

Answer 11

Cell membrane is a semi-permiable membrane
Cytoplasm is the liquid part of the cells where reactions take place
Nucleus controls the cell and contains the genetic info
Chromosomes are thread like structures made of dna
Vacuole contains cell sap support
Chloroplast contains chlorophyll for photosynthesis
Cell wall made of cell sap support

Question 12

What does a red blood cell do

Answer 12

Takes oxygen around the body

Question 13

What does a root hair cell do

Answer 13

Collects water and nutrients from soil

Question 14

What does a sperm cell do

Answer 14

Cary’s an X or a Y chromosome and fertilises an egg

Question 15

What does a nerve cell do

Answer 15

They stimulate other cells

Question 16

What does a ciliated epithilium cell do

Answer 16

To sweep away foreign bodies

Question 17

What does a muscle cell do

Answer 17

Provides movement and heat to the organs

Question 18

How do u use a microscope

Answer 18

Place the slide on the stage
Turn until the shortest lens points at the hole in the stage
Arrange the lamp and mirror so that light shines through the stage
Don’t use direct sunlight
Position the objective lens just above the slide
Look down the eyepiece and start focusing
Focus by moving the lens slowly away from the slide till u get a clear pic
If u focus too close the slide might break or u could damage the objective lens
If u need to look in more deatail turn to the longest lens and refocus

Question 19

How do u prepare an onion cell slide

Answer 19

Cut a small piece of onion
Use finger nails to get the inner layer of onion
Put the piece of onion flat on the slide and add two drops of water
Gently put the cover slip onto the slide using a needle