Glucose is a source of energy. Which one of the following types of molecule is Glucose ?

Glucose is a simple carbohydrate, specifically classified as a monosaccharide or simple sugar [5]. It is an organic compound with the molecular formula C6H12O6, consisting of six carbon atoms and an aldehyde group, which also classifies it as an aldohexose [7]. In biological systems, glucose serves as a primary and instant source of energy [2]. During the process of cellular respiration, glucose is broken down to produce energy in the form of ATP [6]. In plants, it is synthesized through photosynthesis and can be stored as complex carbohydrates like starch [4]. In humans, carbohydrates from food are broken down into glucose during digestion, which then enters the bloodstream to be transported to various tissues for energy production or stored as glycogen in the liver [6].

Sources

1. [5] https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/glucose
2. [7] https://www.sciencedirect.com/topics/medicine-and-dentistry/glucose
3. [2] Science-Class VII . NCERT(Revised ed 2025) > Chapter 10: Life Processes in Plants > 10.2.3 Photosynthesis: in a nutshell > p. 146
4. [3] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > What you have learnt > p. 99
5. [6] https://www.ncbi.nlm.nih.gov/books/NBK545201/
6. [4] Science-Class VII . NCERT(Revised ed 2025) > Chapter 10: Life Processes in Plants > In a Nutshell > p. 150
7. [1] Science , class X (NCERT 2025 ed.) > Chapter 1: Chemical Reactions and Equations > QUESTIONS > p. 7