32 Questions
Which of the following is the composition of proteins?
Amino acids
What is not a function of lipids?
Determining different blood groups
Is protein considered a polymer?
True
Which macromolecule is involved in the synthesis of oxy and deoxy ribose sugars used in building RNA and DNA structure?
Carbohydrates
Which protein structure consists of folded proteins and more than one subunit?
Quaternary structures
Which of the following is not a branched amino acid?
Tyrosine
What type of bond holds amino acids together in a polypeptide chain?
Peptide bond
All of the following are the functions of proteins Except
Formation of steroidal hormones as Cortisol and Sex hormones.
Coagulated proteins are example for secondary derived proteins:
False
What is the primary function of myosin protein?
Muscle contraction
Which of the following is an example of a semi-essential amino acid?
Histidine
Antibodies can be classified as
Conjugated proteins
The primary derived proteins are soluble in water:
False
Insulin is an example of:
Hormonal proteins
Collagens and elastins are examples for globular proteins:
False
All of the following are the functions of carbohydrate Except
Formation of steroidal hormones as Cortisol and Sex hormones.
What is the empirical formula for carbohydrates when n = 5?
C5H10O5
Which group distinguishes monosaccharides as either polyhydroxyaldehydes or polyhydroxyketones?
Keto group
What is the classification of compounds composed of C, H, and O with the empirical formula (CH2O)n?
Carbohydrates
Which category of carbohydrates includes trioses, tetroses, pentoses, and hexoses?
Monosaccharides
Which sugar is the simplest of the aldoses?
Glyceraldehyde
What determines whether a sugar belongs to the D or L series?
The orientation of the hydroxyl and hydrogen groups
Which sugar naturally occurs in the L form?
Arabinose
What confers optical activity on a compound with asymmetric carbon atoms?
The presence of an asymmetric carbon atoms
What produces epimers in monosaccharides?
Variations in configuration of carbon atoms 2, 3, or 4
Which monosaccharide is the naturally occurring form of fructose?
Glucose
What are epimer carbons related to in monosaccharides?
-OH and -H groups on carbon atoms 2, 3, or 4
Which sugar is not classified as an aldose sugar?
Fructose
Which compound is attached to 4 different groups and is present in all monosaccharides except dihydroxyacetone?
-CH2OH group
"D-glyceraldehyde" is an example of which type of monosaccharide?
Aldotriose
What determines whether a sugar belongs to the D or L series?
Comparison with glycerose (glyceraldehyde).
Which sugar naturally occurs in the L form and is found in glycoproteins?
Arabinose
Test your knowledge of biochemistry with this quiz about proteins and lipids. Answer questions about the composition of proteins, the functions of lipids, and the nature of proteins as polymers.
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