Cells
Reproductive Systems
Nutrient Transport
Gas Exchange
Miscellaneous
100
Define 'cell'
Basic unit of life
100
What are the male and female reproductive cells in the body?
ovum (egg) and sperm
100
Which blood vessel carries blood TOWARDS the heart?
Arteries, veins or capillaries?
Veins
100
Identify the two (2) gases that are exchanged in plants and humans
Oxygen and carbon dioxde
100
Which planet in our solar system is known as the "Red Planet"?
Mars
200
A type of cell that has one specific function is called a:
specialised cell
200
What is part D called?
Stigma
200
Explain why veins have valves.
1 mark - low pressure
1 mark - stops backflow
200
Which specialised cell carries oxygen?
Red blood cell
200
Name the 7 continents
- Australia
- Africa
- Asia
- Europe
- North America
- South America
- Antarctica
300
Name two (2) specialised cells
Could include:
1) Red blood cell
2) Sperm
3) Ova (egg)
4) Guard cell
5) Root cells
300
What is the function of the urethra?
Let urine out of the body (both) and sperm (males)
300
Name the four chambers of the heart and state which chamber would have the thickest walls.
Left and right atrium
Left and right ventricles
Thickest is left ventricle
300
What is the job of a guard cell?
In leaves, it opens and closes to let oxygen out and carbon dioxide in for photosynthesis
300
What are three core ingredients for pasta?
- Flour
- Egg / water
- Salt
400
Arrange the following from smallest to largest:
- Organ systems
- organisms
- cells
- organs
- tissues
cells > tissues > organs > organ systems > organisms
400
Explain how plants reproduce.
1 - Pollination
1 - Pollen is carried
1 - by wind or bees
1 - from the anther to the stigma of the same or another flower
400
Name the two (2) structures that carry water and sugars in plants.
Xylem - water from the roots
Phloem - Sugars back down from the leaves
400
Describe the process of respiration in humans.
______ + ____________ > ________ + _______
oxygen + sugars > carbon dioxide +water
400
What percentage of the earth is covered iin trees
30%