Two compounds which highlight characteristic of plants but not of animals-(a) glucose and cellulose
(b) cellulose and starch(c) starch and pyruvic acid
(d) pyrivic acid and glucose.
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Homopolysaccharide: These molecules are made up of only one type of monosaccharides. A general theme for them is derived from the kind of monosaccharide units they have. A homopolysaccharide made up of only glucose molecules is named Glucans. One with only galactose molecules earns the name Galactus. In this given topic we will be focussing only on Glucans.
Heteropolysaccharide: These are polysaccharide molecules consisting of more than one type of monosaccharides.
Now let us focus on the three main polysaccharides commonly found in nature. They are the ones that we see every day in our day to day lives.
Starch
(Source: Wikipedia)
Starch is an element present in all photosynthetic plants. We generally find starch in the plant’s roots and seeds. All plants when they synthesize glucose, the extra glucose is stored in the form of starch.
Starch is a glucan, meaning it only consists of glucose molecules all linked together. The general molecular formula for starch is ( C6H10O5)n. The ‘n’ denotes the number of molecules linked together.
We find starch in the seeds of plants as granules. On heating these granules in the water we form a colloidal suspension. We obtain two components from this process. These two components are Amylose and Amylopectin.
Amylose
Amylose themselves are also polysaccharides.
Constitute about 10-20 % of a starch molecule
They are made up of D-glucose units that connect with each other with the help of a α-glycosidic linkage.
One glucose unit connects to another glucose unit from the one-four position i.e. { α (1-40 }
Amylose has the same basic structure of maltose, multiplied by ‘n’ number of times.
In a basic amylose structure, there are almost 1000 upwards glucose molecules forming a link
Although they are a big molecule they are very compact in size because they form an alpha-helical structure.
Amylose molecules exist in form of a
Heteropolysaccharide: These are polysaccharide molecules consisting of more than one type of monosaccharides.
Now let us focus on the three main polysaccharides commonly found in nature. They are the ones that we see every day in our day to day lives.
Starch
(Source: Wikipedia)
Starch is an element present in all photosynthetic plants. We generally find starch in the plant’s roots and seeds. All plants when they synthesize glucose, the extra glucose is stored in the form of starch.
Starch is a glucan, meaning it only consists of glucose molecules all linked together. The general molecular formula for starch is ( C6H10O5)n. The ‘n’ denotes the number of molecules linked together.
We find starch in the seeds of plants as granules. On heating these granules in the water we form a colloidal suspension. We obtain two components from this process. These two components are Amylose and Amylopectin.
Amylose
Amylose themselves are also polysaccharides.
Constitute about 10-20 % of a starch molecule
They are made up of D-glucose units that connect with each other with the help of a α-glycosidic linkage.
One glucose unit connects to another glucose unit from the one-four position i.e. { α (1-40 }
Amylose has the same basic structure of maltose, multiplied by ‘n’ number of times.
In a basic amylose structure, there are almost 1000 upwards glucose molecules forming a link
Although they are a big molecule they are very compact in size because they form an alpha-helical structure.
Amylose molecules exist in form of a
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⭕️Option B : cellulose and starch✔️
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