Answer
Verified
432k+ views
Hint: A ketose is a monosaccharide containing one ketone group per molecule.Monosaccharides, also called simple sugar, are the simplest form of sugar and the most basic units of carbohydrates.
Complete step by step answer:
A monosaccharide is the most basic form of carbohydrates. Monosaccharides can be combined through glycosidic bonds to form larger carbohydrates, known as oligosaccharides or polysaccharides. An oligosaccharide with only two monosaccharides is known as a disaccharide. When more than 20 monosaccharides are combined with glycosidic bonds, a oligosaccharide becomes a polysaccharide. Some polysaccharides, like cellulose, contain thousands of monosaccharides. A monosaccharide is a type of monomer, or molecule that can combine with like molecules to create a large polymer.
A ketose is a monosaccharide containing one ketone group per molecule.
Optical activity of an organic compound: Optical rotation, also known as polarization rotation or circular birefringence, is the rotation of the orientation of the plane of polarization about the optical axis of linearly polarised light as it travels through certain materials. Optical activity occurs only in chiral materials, those lacking microscopic mirror symmetry.The rotation of the plane of polarization may be either clockwise, to the right ( — d-rotary), or to the left (— l-rotary) depending on which stereoisomer is present (or dominant).
The simplest ketose is dihydroxyacetone, which has only three carbon atoms, and it is the only one with no optical activity.
Thus, the first member of ketose sugar is Ketotriose. It is also called 1,3-dihydroxypropan-2-one.
So, the correct answer is “Option A”.
Note: Ketose sugar is monosaccharide, not polysaccharide. Ketotriose is DHA, which helps for the brain development of kids.
Complete step by step answer:
A monosaccharide is the most basic form of carbohydrates. Monosaccharides can be combined through glycosidic bonds to form larger carbohydrates, known as oligosaccharides or polysaccharides. An oligosaccharide with only two monosaccharides is known as a disaccharide. When more than 20 monosaccharides are combined with glycosidic bonds, a oligosaccharide becomes a polysaccharide. Some polysaccharides, like cellulose, contain thousands of monosaccharides. A monosaccharide is a type of monomer, or molecule that can combine with like molecules to create a large polymer.
A ketose is a monosaccharide containing one ketone group per molecule.
Optical activity of an organic compound: Optical rotation, also known as polarization rotation or circular birefringence, is the rotation of the orientation of the plane of polarization about the optical axis of linearly polarised light as it travels through certain materials. Optical activity occurs only in chiral materials, those lacking microscopic mirror symmetry.The rotation of the plane of polarization may be either clockwise, to the right ( — d-rotary), or to the left (— l-rotary) depending on which stereoisomer is present (or dominant).
The simplest ketose is dihydroxyacetone, which has only three carbon atoms, and it is the only one with no optical activity.
Thus, the first member of ketose sugar is Ketotriose. It is also called 1,3-dihydroxypropan-2-one.
So, the correct answer is “Option A”.
Note: Ketose sugar is monosaccharide, not polysaccharide. Ketotriose is DHA, which helps for the brain development of kids.
Recently Updated Pages
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Advantages and disadvantages of science
10 examples of friction in our daily life
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
10 examples of evaporation in daily life with explanations
One cusec is equal to how many liters class 8 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Difference Between Plant Cell and Animal Cell
How do you graph the function fx 4x class 9 maths CBSE