One of the following is the correct sequence of carbohydrates in the order of increasing complexity of chemical structure-
(a) Sucrose , starch ,oligosaccharide, maltose , triose
(b) Triose , maltose , Sucrose, starch, oligosaccharide
(c) Triose , glucose ,maltose , oligsaccharide ,starch
(d) Oligosaccharide, triose , starch, sucrose , maltose

Options

A. Sucrose , starch ,Oligosaccharide,maltose , triose
B. Triose , maltose , Sucrose, starch,Oligosaccharide,
C. Triose , glucose ,maltose , oligsaccharide ,starch
D. Oligosaccharide, triose , starch , sttarch , sucrose , maltose

Answer

To determine the correct sequence of carbohydrates in order of increasing complexity of chemical structure, we need to understand the classification of carbohydrates:

1. **Monosaccharides**: These are the simplest form of carbohydrates, consisting of single sugar units. Examples include triose (3 carbon atoms) and glucose (6 carbon atoms).

2. **Disaccharides**: These are formed by the combination of two monosaccharides. Examples include maltose (formed from two glucose units) and sucrose (formed from glucose and fructose).

3. **Oligosaccharides**: These consist of a few (typically 3-10) monosaccharide units linked together.

4. **Polysaccharides**: These are complex carbohydrates made up of many monosaccharide units. Examples include starch and cellulose.

Now, let's analyze the options given in the question:

(a) **Sucrose, starch, oligosaccharide, maltose, triose**: This sequence is mixed up and does not follow the increasing order of complexity.

(b) **Triose, maltose, sucrose, starch, oligosaccharide**: This sequence starts with a monosaccharide (triose), followed by disaccharides (maltose and sucrose), and ends with polysaccharides (starch and oligosaccharide). However, oligosaccharides should come before polysaccharides in complexity.

(c) **Triose, glucose, maltose, oligosaccharide, starch**: This sequence starts with a monosaccharide (triose), followed by another monosaccharide (glucose), then a disaccharide (maltose), followed by oligosaccharides, and finally a polysaccharide (starch). This is the correct sequence as it follows the increasing order of complexity.

(d) **Oligosaccharide, triose, starch, sucrose, maltose**: This sequence is also mixed up and does not follow the increasing order of complexity.

Based on the analysis, the correct answer is:

**(c) Triose, glucose, maltose, oligosaccharide, starch**