NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which bio-molecule is NEVER broken down by the body for energy?
A
Proteins
B
Carbohydrates
C
Nucleic Acids
D
Lipids
Explanation: 

Detailed explanation-1: -Nucleic acids do not provide the bulk energy for an organism, so they are not nutrients.

Detailed explanation-2: -Simple carbohydrates: Various forms of sugar, such as fructose (fruit sugar) and sucrose (table sugar), are simple carbohydrates. They are small molecules, so they can be broken down and absorbed by the body quickly and are the quickest source of energy.

Detailed explanation-3: -Among biomolecules, nucleic acids, namely DNA and RNA, have the unique function of storing an organism’s genetic code-the sequence of nucleotides that determines the amino acid sequence of proteins, which are of critical importance to life on Earth.

Detailed explanation-4: -Macromolecules : Example Question #3 Cellulose is a polysaccharide in which the monomers are linked by a beta linkage. This linkage requires a specialized enzyme that is not found in human beings. As a result, humans cannot break down cellulose.

Detailed explanation-5: -Energy-rich molecules such as glycogen and triglycerides store energy in the form of covalent chemical bonds. Cells synthesize such molecules and store them for later release of the energy.

There is 1 question to complete.