The Blood System

How much blood do we have in our bodies?

• 4 litres
• 5 litres
• 6 litres
• 7 litres

When we donate blood how much do we typically donate?

• 100 ml
• 300 ml
• 500 ml
• 750 ml

Red blood cells carry oxygen

• True
• False

There are more white blood cells than red blood cells

• True
• False

High blood pressure is typically caused by

• plaque build up in the arteries
• blood flowing at a lower speed
• a heart that is weak
• arteries that are too wide

Tags

NGSS.HS-LS1-3

The proteins in red blood cells are called

• protoblasts
• rhyzodes
• neucleotides
• antigens

There are two types of antigens - A and B

• True
• False

O blood type 

• contains little oxygen
• is not a blood type
• contains excessive oxygen
• has no antigens

Which of these is NOT a blood type

• A
• AB
• B
• BB

White Blood Cells fight off infection and germs

• True
• False

Tags

NGSS.HS-LS1-3