How Much Do You Know About Human Biology?

It's with us when we're born, it's there when we die, and we use it constantly - it's the human body, and it's quite incredible. How well do you know the body you use all day? Take our quiz and find out!
 
1 of 12
Hint
Which organ in the human body weighs 2% of the body weight but uses 20% of its energy resources?
The Kidneys
The Brain
The Heart
The Liver
 
2 of 12
Hint
How many blood types are there (including positive and negative)?
Four
Six
Twelve
Eight
 
3 of 12
Hint
Which of these statements about the human cell is correct?
Our DNA changes from cell to cell, no two are alike
Our DNA contains our chromosomes
The nucleus of the cell contains our DNA
Our DNA contains the nucleus of the cell
 
4 of 12
Hint
True or False: We have FIVE senses
True. They are touch, taste, smell, vision and hearing
False. We have at least four more senses
 
5 of 12
A person who suffers from myopia...
Can't see far objects clearly
Can't see close objects clearly
Can't see color
Can't see anything clearly at all
 
6 of 12
When does the brain work hardest?
When we're awake
When we're asleep
 
7 of 12
Hint
Over 50% of the brain's cortex is used only to process information from this sense.
Vision
Touch
Smell
Hearing
 
8 of 12
Which of these is NOT a sign you have a liver problem?
Swelling
A rash on the legs
Skin and eyes turning yellow
Abdominal pain
 
9 of 12
Hint
There are three types of muscles: Smooth muscles, Cardiac muscles and...
Skin Muscles
Spine Muscles
Blood Muscles
Skeletal Muscles
 
10 of 12
Hint
What is the ratio between human cells and bacteria in the human body?
There are twice as many bacteria
There are 50 times as many human cells
There are twice as many human cells
There are 10 times as many bacteria
 
11 of 12
Hint
Which of these is another name for white blood cells?
Leukocytes
Stem Cells
Platelets
Macrophages
 
12 of 12
Hint
When you crack your knuckles, the sound you hear comes from...
Joints stretching and then quickly returning to their place
The sliding of bones against one another
Gas bubbles bursting in our joints
Pulling out a finger bone from its place and then popping it back
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