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fructose is known___ _
Fructose is known as a ketohexose because it contains six carbon atoms and a ketone group. The term 'hexose' refers to the six carbon atoms, and 'keto' indicates the presence of a ketone group.
which substance is insoluble in water?
Starch is insoluble in water. It is a polysaccharide composed of glucose monomers and has a complex structure that does not dissolve easily in water.
in structure of amylopectin $ \alpha-D+glucose units are joined by C1-0-C4linkage, but some \alpha -D+ $ glucose units are joined by linkage
In amylopectin, most of the glucose units are linked by α(1→4) glycosidic bonds. However, branching occurs at every 24 to 30 glucose units with α(1→6) glycosidic bonds. This means some α-D-glucose units are joined by C1-O-C6 linkage.
cellulose consist of long chain of __ _
in cellulose 2 monosaccharide molecule are joined by _ linkage
In cellulose, two β-D-glucose molecules are joined by β(1→4) glycosidic bonds. This means that the linkage between the glucose units is a C1-O-C4 bond. This specific linkage allows the formation of straight chains that can hydrogen bond with each other, providing strength and stability to the cellulose fibers.
structure of all $ \alpha $ -amino acid posses amino group
All \alpha-amino acids possess a primary amino group (\text{NH}_2) except for proline, which has a secondary amino group. Therefore, the correct answer is primary.
proline amino acid contains amino group
Proline is unique among the standard amino acids because it contains a secondary amino group. In proline, the amino group is part of a five-membered ring, making it secondary. Therefore, the correct answer is secondary.
essential amino acid is
Valine, histidine, and methionine are all essential amino acids, meaning they must be obtained through diet as the body cannot synthesize them. Therefore, the correct answer is all.
some amino acids are known as none essential aminoacid because
Non-essential amino acids are termed 'non-essential' because they can be synthesized by the human body. Unlike essential amino acids, which must be obtained through diet, non-essential amino acids do not need to be consumed through food as the body can produce them from other compounds. This is why option o2 is correct.
amino acid contains
Amino acids contain both an amino group (-NH2) and a carboxyl group (-COOH). These functional groups are critical for the structure and function of amino acids in proteins. Hence, option o4, which includes both groups, is the correct answer.
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