Cells
Cells
Homeostasis
Rates of reaction
Skills
100
What are all living organisms made up from
Cells
100
What is the magnification equation?
Magnification = image/actual
100
What is a hormone?
A chemical substance that travels around the body in the blood.
100
Define rate of reaction
The rate of a reaction is a measure of how quickly a reactant is used up, or a product is formed.
100
What is the independent variable?
The thing that you change.
250
What type of cell is this?
Sperm cell
250
What organelle is used for photosynthesis
Chloroplasts
250
What are the three neurones called in the nervous system?
Sensory, Relay, Motor
250
Name two factors that can affect rate of reaction?
Concentration, temperature, pressure, surface area
250
What was the independent variable in this investigation?
The type of surface
500
What three organelles do plant cells have, that animal cells do not
Vacuole, cell wall and chloroplasts
500
Name another eukaryote other than animal
plant
500
What is the endocrine system?
A system of glands that secrete hormones
500
What must particles do in order to react?
Collide successfully
500
What was the dependent variable in this investigation?
Reaction time/distance on ruler
750
What is the function of a vacuole?
Stores cell sap
750
How is a bed blood cell adapted
large surface area
750
Where is insulin produced?
Pancreas
750
What is a catalyst?
A substance that is used to increase the rate of reaction
750
How can we make our results more reliable?
Carry out repeats
1000
Which organelle is smaller? Mitochondria or ribosomes?
Ribosomes
1000
What colour are chlorplasts
green
1000
What is a synapse?
The gap between two neurones
1000
Define activation energy.
The minimum amount of energy needed for a reaction to take place.
1000
What chemical did we use in this investigation
Sodium Thiosulphate