LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following elements are NOT considered a main component of living things?
A
Hydrogen
B
Helium
C
Carbon
D
Sulfur
Explanation: 

Detailed explanation-1: -Zinc is not an element common to all living organisms. The six elements common to all living organisms are: Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus and Sulfur.

Detailed explanation-2: -Scientists believe that about 25 of the known elements are essential to life. Just four of these – carbon (C), oxygen (O), hydrogen (H) and nitrogen (N) – make up about 96% of the human body.

Detailed explanation-3: -Uranium is the element which is not essential for life to originate and flourish on a planet.

Detailed explanation-4: -Carbon, hydrogen, oxygen, and nitrogen are the most important elements. Small quantities of other elements are necessary for life. Carbon is the most abundant element in living matter.

There is 1 question to complete.