NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is Carbon so important to living things?
A
It forms molecules easily
B
It can form many shapes
C
It is in most organic molecule
D
All of these
Explanation: 

Detailed explanation-1: -Life on earth would not be possible without carbon. This is in part due to carbon’s ability to readily form bonds with other atoms, giving flexibility to the form and function that biomolecules can take, such as DNA and RNA, which are essential for the defining characteristics of life: growth and replication.

Detailed explanation-2: -Most living things on Earth are made of carbon . Living things need carbon the most in order to live, grow, and reproduce. Also, carbon is a finite resource that cycles through the Earth in many forms.

Detailed explanation-3: -Carbon’s molecular structure gives it the ability to form stable bonds with other elements, including itself, which makes it the central element of organic compounds. It makes up almost 20% of the weight of an organism, and it is essential for them to live, to grow, and to reproduce.

Detailed explanation-4: -Proteins, for example, form almost our entire bodies, and proteins on Earth are based on carbon. Nucleic acids are vitally important to animal life, and indeed also contain carbon. Carbohydrates and lipids (fats) are also major parts of the bodies of animals like us. All of these things are reliant on carbon.

Detailed explanation-5: -It makes up for 18% of the human body. Sugar, glucose, proteins etc are all made of it. Carbon in its diamond form is used in jewellery. Amorphous carbon is used to make inks and paints. Graphite is used as the lead in your pencils. One of the most important uses is carbon dating.

There is 1 question to complete.