WorksheetsCHEMICAL ELEMENTS IN A HUMAN BODY
Total questions: 9
Worksheet time: 3mins
Name
Class
Date
1.
Most of human body is composed of ...
a)
Hydrogen
b)
Carbon
c)
Water
d)
Calcium
2.
This element is not from "big 7" elements list:
a)
Carbon
b)
Iron
c)
Calcium
d)
Phosphorus
3.
Where in a human body you can't find oxygen?
a)
carbohydrates
b)
proteins
c)
fats
d)
oxygen can be found everywhere in a human body
4.
Organic compounds are made of carbon
a)
True
b)
False
5.
There is no nitrogen in a
a)
DNA
b)
proteins
c)
water
d)
nucleic acids
6.
Calcium is one of the main building blocks for our
..... and .......
a)
teeth
b)
muscles
c)
skin
d)
bones
7.
Phosphorus can be found in
a)
ATP molecule
b)
bones
c)
teeth
d)
blood
8.
This element plays the main role in carrying nerve
impulses and in keeping blood pressure.
a)
Oxygen
b)
Hydrogen
c)
Potassium
d)
Carbon
9.
Where in the body are most of the iron located?
a)
blood
b)
bones
c)
teeth
d)
muscles
100 %
