Edexcel AS Biology topic 1 - all areas

A quiz to test you on your SNAB topic 1 (for the unit 1 exam) knowledge!

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  • Created by: Hannah
  • Created on: 08-01-12 19:03
Why do veins have valves?
There is a less direct effect by the heart, so the valves push blood fowards towards heart by skeletal muscle contraction and prevent backflow of blood
1 of 4
What is the correct direction of blood flow?
Heart - Arteries - Arterioles - Capillaries - Venules - Veins - Heart
2 of 4
The disaccharide Lactose is formed by...
Glucose + Galactose
3 of 4
Two vessels called coronary arteries give a constant supply of blood to the heart because...
The heart requires oxygenated blood for energy to be able to contract
4 of 4

Other cards in this set

Card 2

Front

What is the correct direction of blood flow?

Back

Heart - Arteries - Arterioles - Capillaries - Venules - Veins - Heart

Card 3

Front

The disaccharide Lactose is formed by...

Back

Preview of the front of card 3

Card 4

Front

Two vessels called coronary arteries give a constant supply of blood to the heart because...

Back

Preview of the front of card 4

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