Which of these is not a polysaccharide?
Question 11 options:
a) glucose
b) glycogen
c) cellulose
d) starch
e) All of the above are polysaccharides.
a) glucose is not a polysaccharide.
are you sure?
Apologies for the mistake. I misspoke in my previous response. Glucose is indeed a monosaccharide and not a polysaccharide. So, the correct answer would be:
a) glucose.
To determine which of the options is not a polysaccharide, let's define what a polysaccharide is. A polysaccharide is a complex carbohydrate molecule consisting of multiple sugar units bonded together.
a) Glucose is a monosaccharide, meaning it consists of a single sugar unit. Therefore, glucose is not a polysaccharide.
b) Glycogen is a polysaccharide. It is the storage form of glucose in animals.
c) Cellulose is a polysaccharide. It is the main component of plant cell walls.
d) Starch is a polysaccharide. It is the main storage form of glucose in plants.
From the analysis, the answer is: a) glucose. Glucose is not a polysaccharide.
To determine which of the options is not a polysaccharide, you need to understand what a polysaccharide is.
A polysaccharide is a complex carbohydrate made up of multiple sugar molecules bonded together. It serves as a storage form of energy in plants and animals and also provides structural support in their cells.
Let's go through the options one by one:
a) Glucose: Glucose is a monosaccharide, which means it is a single sugar molecule. So, it is not a polysaccharide.
b) Glycogen: Glycogen is a polysaccharide and serves as the main storage form of glucose in animals. It is similar in structure to starch.
c) Cellulose: Cellulose is a polysaccharide found in the cell walls of plants. It provides structural support to plant cells and is one of the most abundant organic compounds on Earth.
d) Starch: Starch is a polysaccharide found in plants, serving as a carbohydrate storage molecule. It is composed of glucose molecules and is broken down by the body into glucose, which is then used for energy.
e) All of the above are polysaccharides: This option suggests that all the previous options (a, b, c, and d) are polysaccharides. However, we have already identified that glucose is not a polysaccharide, so this option is incorrect.
Therefore, the correct answer is:
a) Glucose