What is the function of proteins (Biomolecules)?

Appeared in: UPUMS Nsg officer-2023

Explanation

Proteins are fundamental biomolecules referred to as the "building blocks" of the body.
Their primary role is structural development, repair, and maintenance of all body tissues, including muscles, skin, and organs.
This function is crucial for growth during childhood and for the continuous renewal of cells throughout life.

Option B: Maintenance of body temperature is not the primary function of proteins.
Option C: Proteins are not the primary hereditary material.
Option D: Proteins are not involved in the synthesis of waxes.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Primary function of proteins as a major biomolecule as background academic context rather than a clinical decision trigger.
A patient's protein status, often measured by serum albumin levels, is a critical indicator of nutritional health. Low albumin can impair wound healing and increase susceptibility to infection.
In conditions like severe burns or major surgery, the body's protein requirements increase significantly to support tissue repair and a robust immune response.
What if? If a patient has chronic kidney disease, their protein intake is often restricted. This is because the kidneys struggle to filter the waste products of protein metabolism (like urea), and a high protein load can worsen kidney damage.

How to Approach the Question

This is a factual recall question testing basic knowledge of biochemistry.
First, identify the key term in the question stem: 'function of proteins'.
Recall the fundamental roles of the four major classes of biomolecules. Proteins are primarily known for their structural and repair functions ('building blocks').
Evaluate each option based on this core knowledge. 'Build new cells for growth & renew damaged tissue' directly aligns with the primary role of proteins.
Systematically eliminate the other options by correctly associating their functions: temperature maintenance (lipids/fats), hereditary factor (nucleic acids), and synthesis of wax (lipids).

Concept Tested & Keywords

QRCcJsrWXPtrBmPpwIXmqK

E6 Nutrition Monika Sharma 3e p. 88-90

E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 144-146

Practise the full UPUMS Nsg officer-2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.