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WorksheetsNucleic Acids and Proteins - VCAA Past Exam Qs
Total questions: 16
Worksheet time: 9mins
The primary structure of a protein is important because it
A - is the active, functional form of the protein
B - has a very specific three-dimensional shape
C - influences the way that the polypeptide folds
D - directly controls the way that proteins are transported into a cell
Which one of the following organelles has the role of synthesising proteins from their monomers?
A - Golgi apparatus
B - ribosomes
C - vesicles
D - nucleus
Which one of the following statements about proteins is correct?
A - The activity of a protein may be affected by the temperature and pH of its environment
B - the primary structure of a protein refers to it's three-dimensional shape
C - Proteins are not involved in the human immune response
D - A protein with a quaternary structure will be an enzyme
Two different cells taken from the same human were viewed using a microscope.
The diagrams show the structure of the two cells, not drawn to the same scale.
Which one of the follow is a correct conclusion to reach when comparing the two cells?
A - At any given time, the genes expressed in each cell may be different
B - All proteins in each cell will have similar tertiary structures
C - The two cells have the same proteome
D - The two cells have different genomes
The proteome is
A - the total DNA content that is present within one cell of an organism
B - a complete set of chromosomes found inside the cell of an organism
C - the entire set of proteins expressed by an organism at a given time
D - the four hierarchical levels of protein structure
The diagram represents adjacent amino acids being joined together.
The joining of adjacent amino acids
A - results in the formation of a nucleic acid
B - is an energy-releasing reaction
C - is catalysed by DNA ligase
D - is a condensation reaction
Consider the structure and functional importance of proteins.
Which one of the following statements about proteins is correct?
A - A change in the tertiary structure of a protein may result in the protein becoming biologically inactive.
B - Proteins with a quaternary structure will be more active than proteins without a quaternary structure.
C - Two different proteins with the same amino acids will have identical functions.
D - Denaturation will alter the primary structure of a protein.
The diagram represents part of a DNA molecule.
A single DNA nucleotide is shown by sub-unit(s)
A - X alone.
B - X and Y together.
C - Y and Z together.
D - X, Y and Z together.
A feature of DNA that can be seen in the diagram is
A - the anti-parallel arrangement of the two strands of nucleotides.
B - the process of semi-conservative replication.
C - its ribose sugar-phosphate backbone
D - its double-helix structure
The part of the molecule referred to as an anticodon can be found in
A - DNA
B - transfer RNA
C - ribosomal RNA
D - messenger RNA
Consider the cell diagram.
Process R is an example of
A - exocytosis
B - phagocytosis
C - pinocytosis
D - endocytosis
Protein M, made by a particular cell type, is released for use by other cells.
The site of synthesis of protein M is the
A - vesicles
B - ribosomes
C - plasma membrane
D - smooth endoplasmic reticulum
Protein M, made by a particular cell type, is released for use by other cells.
The export of protein M by these cells would involve.
A - centrioles
B - lysosomes
C - the Golgi apparatus
D - chromosomes
Which of the following identifies the function of mRNA?
A - makes up the ribosome
B - takes the DNA code out of the nucleus
C - transfers proteins out of the cell
D - brings the correct amino acid to the ribosome
DNA and RNA are both nucleic acids that contain genetic information.
Which of the following is incorrect about the two molecules?
A - DNA is double-stranded while RNA is single-stranded.
B - DNA contains the sugar deoxyribose whereas RNA contains a ribose sugar.
C - DNA contains a negatively charged phosphate group whereas RNA contains a positively charged phosphate group.
D - DNA contains the nitrogenous base thymine whereas RNA contains the base uracil.
What is the monomer that DNA is made up of?
A - Amino acids
B - Nucleotides
C - Monosaccharides
D - Fatty acid and glycerol
