WorksheetsBiology Super Starz
Total questions: 15
Worksheet time: 30mins
Which of the following terms are associated with all amino acids?
zwitterion, hydrophobic, amphoteric
zwitterion, amphoteric
amphoteric, hydrophobic
hydrophobic, amphipathic
amphipathic, amphoteric
Actin has which of the following types of protein structure?
membrane, fibrous, globular
membrane, fibrous
fibrous, globular
globular, filamentous
fibrous, filamentous
Amylose is to amylase as:
lipid is to lipase; amino acids are to peptidyl transferase; glucose is to maltase
lipid is to lipase; amino acids are to peptidyl transferase
amino acids are to peptidyl transferase; glucose is to maltase
glucose is to maltase; RNA is to restriction endonuclease
amino acids are to peptidyl transferase; RNA is to restriction endonuclease
Which of these groups are associated with amino acids?
R group; amino group; carboxylic acid group
R group, amino group
amino group; carboxylic acid group
carboxylic acid group; aldehyde group
amino group; aldehyde group
Which of the following bonds assist the stabilisation of tertiary structure?
hydrogen bonds; disulphide bridges; hydrophobic interactions
hydrogen bonds; disulphide bridges
disulphide bridges; hydrophobic interactions
hydrophobic interactions; ester bonds
disulphide bridges; ester bonds
Which of the following are true about DNA replication?
it occurs in Prokaryotes all of the time; in Eukaryotes it occurs in S phase of cell cycle; in Eukaryotes it occurs in G1 phase of cell cycle
it occurs in Prokaryotes all of the time; in Eukaryotes it occurs in S phase of cell cycle
it occurs in Prokaryotes all of the time; in Eukaryotes it occurs in G1 phase of cell cycle
in Eukaryotes it occurs in G1 phase of cell cycle; it occurs in Eukaryotes all of the time
it occurs in Prokaryotes all of the time; it occurs in Eukaryotes all of the time
In PCR why is Taq polymerase is used?
It is the only polymerase that synthesises human DNA; It does not become denatured at high temperatures; It is the only DNA polymerase that has been synthesised
It is the only polymerase that synthesises human DNA; It does not become denatured at high temperatures
It does not become denatured at high temperatures; It is the only DNA polymerase that has been synthesised
It is the only DNA polymerase that has been synthesised; It has a high optimal temperature
It does not become denatured at high temperatures; It has a high optimal temperature
Which of the following statements about the variable groups on amino acids are correct?
electrically charged side chains will only be found in the regions that interact with other molecules; Alanine is the simplest variable group; non polar side chain will form the hydrophobic regions
electrically charged side chains will only be found in the regions that interact with other molecules; Alanine is the simplest variable group
Alanine is the simplest variable group; non polar side chain will form the hydrophobic regions
non polar side chain will form the hydrophobic regions; polar side chains will be located in the part that is water soluble
Alanine is the simplest variable group; polar side chains will be located in the part that is water soluble
Which of these statements are true of DNA replication
both strands are used as template, creating two mixed strands, one old and new; DNA helicase breaks bonds between the DNA strands; both strands are used as template, creating one new molecule and one old
both strands are used as template, creating two mixed strands, one old and new; DNA helicase breaks bonds between the DNA strands
DNA helicase breaks bonds between the DNA strands; both strands are used as template, creating one new molecule and one old
both strands are used as template, creating one new molecule and one old; bits of DNA are copied throughout the helix, creating a patchwork of old and new DNA
DNA helicase breaks bonds between the DNA strands; bits of DNA are copied throughout the helix, creating a patchwork of old and new DNA
Which of the following are enzymes involved in DNA replication?
DNA ligase; DNA helicase; DNA polymerase
DNA ligase; DNA helicase
DNA helicase; DNA polymerase
DNA polymerase; RNA polymerase
DNA helicase; RNA polymerase
Phosphate groups are very important within cell signalling. Why is this?
Addition of a phosphate group can activate an inactive molecule; Removal of a phosphate group can inactivate an active molecule; Addition of a phosphate group can inactivate an active molecule
Addition of a phosphate group can activate an inactive molecule; Removal of a phosphate group can inactivate an active molecule
Removal of a phosphate group can inactivate an active molecule; Addition of a phosphate group can inactivate an active molecule
Addition of a phosphate group can inactivate an active molecule; Phosphate removal from ATP provides energy
Removal of a phosphate group can inactivate an active molecule; Phosphate removal from ATP provides energy
With reference to figure above, which of the statements are correct?
Type C is autocrine signalling; Hormones are used in type B signalling; Neurotransmitters are an example of a signalling module in type C
Type C is autocrine signalling; Hormones are used in type B signalling
Hormones are used in type B signalling; Neurotransmitters are an example of a signalling module in type C
Neurotransmitters are an example of a signalling module in type C; Type D is endocrine signalling
Hormones are used in type B signalling; Type D is endocrine signalling
The figure above shows an image of an integrin protein. Which of the following statements accurately reflect integrin’s role(s)?
anchoring the cell within the extracellular matrix; providing structural support to the cell; enabling actin filaments to move within the cell
anchoring the cell within the extracellular matrix; providing structural support to the cell
providing structural support to the cell; enabling actin filaments to move within the cell
enabling actin filaments to move within the cell; allowing the cell to move within the extracellular matrix
providing structural support to the cell; allowing the cell to move within the extracellular matrix
Which of these types of junction are used for cell communication?
Tight junctions; Plasmodesmata; Adhesion junctions
Tight junctions; Plasmodesmata
Plasmodesmata; Adhesion junctions
Adhesion junctions; Gap junctions
Plasmodesmata; Gap junctions
The figure above shows a type of cell junction. Which of the following statements relating to this structure are correct?
they create discrete areas surrounding cells to enable transfer of materials between adjacent cells; they connect one cell to another via protein filaments; they keep different parts of membranes separate from each other
they create discrete areas surrounding cells to enable transfer of materials between adjacent cells; they connect one cell to another via protein filaments
they connect one cell to another via protein filaments; they keep different parts of membranes separate from each other
they keep different parts of membranes separate from each other; they provide mechanical strength to cells that experience a lot of abrasion.
they connect one cell to another via protein filaments; they provide mechanical strength to cells that experience a lot of abrasion.
