Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
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17) Which of the following contains a-1,6-
branches?
A) amylose
B) glycogen
cellulose
D) sucrose
E) maltose
4
23. Oleic acid is
A) an 18-carbon
saturated fatty acid.
an 18-carbon
monounsaturated fatty
acid.
a polyunsaturated fatty
acid.
a 20-carbon
monounsaturated fatty
acid.
24. Palmitate has 16 carbon atoms with 1
A2 double bonds
B3 double bonds
C.One double bond
D.None of these
25. Phospholipid contains
Abydrophilic heads and hydrophobic tails
Blong water-soluble carbon chains
C.positively charged functional groups
Dboth (b) and (c)
26. Which of the following form between
glycerol and fatty acids to form triglycerides?
A) hydrogen bonds
B) disulfide linkages
C) peptide bonds
Binsoluble in water
Csoluble in water at elevated temperature
D.partially soluble in water
NAME
D) glycosidic linkages
E) ester linkage
e. glycogen-disaccharide
& cellulose-polysaccharide
27. Which of the following pairs is incorrect?
& sucrose-disaccharide
b. starch-polysaccharide
28. The type of transport that carries chloride
ions through integral proteins in the cell
membrane is
30. What is the function of the cholesterol
in the cell membrand?
A) to produce a barrier
B) to add strength and rigidity to the cell
wall
facilitated
transport.
passive transport.
diffusion.
active transport.
Retake
29. The lipid bilayer of a cell is
composed of
glycerophospholipids.
proteins.
cholesterol.
D) all of these
C) none of the above
31. Circle the steroid that would be most
soluble in water](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F969d0590-18da-4596-aeb4-c13d1ade9083%2Ff2bacc16-684d-4b41-bab3-d1eff264efcf%2Fec99o2k_processed.jpeg&w=3840&q=75)
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