WorksheetsLipids, Proteins & DNA and RNA Molecules
Total questions: 10
Worksheet time: 8mins
Which of the following is produced from a condensation reaction during protein synthesis?
Fat
Water
Dipeptide
Maltose
Which of the following is a purine?
Cytosine
Guanine
Thymine
Uracil
The two strands of polynucleotides in a DNA molecule are held together by
(a)
Triglycerides are formed from the condensation of
three molecules of glycerol and one molecule of fatty acid.
three molecules of fatty acids and one molecule of glycerol.
three molecules of fatty acids and three molecules of glycerol.
one molecule of glycerol and one molecule of fatty acid.
The phosphate group in phospholipids is
Polar and hydrophilic.
Non polar and hydrophobic.
Ionized in water.
Uncharged.
The 20 different amino acids found in polypeptides exhibit different chemical and physical properties because of different
Carboxyl group attached to an α-carbon.
Amino groups attached to an α- carbon.
Side chain.
α-carbon.
The phosphodiester linkage in DNA or RNA is formed between
two bases.
two sugars.
a sugar and a base.
a sugar and a phosphate group.
Which of these is a difference between DNA and RNA?
RNA is double stranded while DNA is single stranded.
DNA is found in the nucleus while RNA is never found in the nucleus.
In DNA, adenine pairs with guanine while in RNA adenine pairs with thymine.
DNA contains thymine while RNA contains uracil.
Which of the following components create nucleotides?
A nitrogenous base and a phosphate group.
A nitrogenous base and a pentose sugar.
A nitrogenous base, a phosphate group and a pentose sugar.
A pentose sugar and a purine or pyrimidine.
State the type of lipids for this molecule.
(a)
