Chapter 12, Problem 1STP

Summary Introduction

Introduction:

Macromolecules are large molecules built from different combinations of smaller organic molecules. In Biology, Carbohydrates, Protein, Lipids, and Nucleic acids are four main macromolecules. Most of the macromolecules are termed as Polymers, which are made up of smaller units known as Monomers.

Photosynthesis is the process in which autotrophs use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.

Answer to Problem 1STP

Correct answer:

The correct answer is option (A) cellulose.

Explanation of Solution

Explanation/justification for the correct answer:

Cellulose is a carbohydrate biomolecule, which is composed of several glucose biomolecules (monomers). During photosynthesis, Glucose biomolecules are produced.

Hence cellulose is formed by the sugar produced during photosynthesis.

Explanation for incorrect answer:

Option (B) DNA(Deoxyribonucleic acid): Nucleic acids are the macromolecules that are made up of nucleotides (monomers).

Option (C) Lipid: Lipids are macromolecules made up of fatty acid and glycerol.

Option (D) Protein: They are made up of amino acids.