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Questions and Answers
Which type of receptor has a catalytic domain on the cytoplasmic side?
Which type of receptor has a catalytic domain on the cytoplasmic side?
- G Protein–Linked Receptor
- Protein Kinase Receptor (correct)
- Membrane receptor
- Ion channel receptor
What type of receptors change shape when a ligand binds?
What type of receptors change shape when a ligand binds?
- Ion channel receptor
- G Protein–Linked Receptor (correct)
- Membrane receptor
- Intracellular receptor
What type of ligands can diffuse across the membrane to bind with intracellular receptors?
What type of ligands can diffuse across the membrane to bind with intracellular receptors?
- Negatively charged
- Small or nonpolar (correct)
- Large or polar
- Hydrophilic
What is the function of ion channel receptors upon binding with acetylcholine?
What is the function of ion channel receptors upon binding with acetylcholine?
Signal activation of a specific receptor leads to a cellular response mediated by a:
Signal activation of a specific receptor leads to a cellular response mediated by a:
What is required for a cell to respond to a signal?
What is required for a cell to respond to a signal?
What type of signaling requires direct contact between the signaling and responding cell?
What type of signaling requires direct contact between the signaling and responding cell?
What is the role of the membrane in a cell’s response to environmental signals?
What is the role of the membrane in a cell’s response to environmental signals?
What does allosteric regulation involve in a signal transduction pathway?
What does allosteric regulation involve in a signal transduction pathway?
What is the purpose of a signal transduction pathway?
What is the purpose of a signal transduction pathway?
What is the enzyme responsible for RNA synthesis during transcription?
What is the enzyme responsible for RNA synthesis during transcription?
Which type of RNA polymerase is responsible for the synthesis of mRNA, snRNA, and miRNA in eukaryotic cells?
Which type of RNA polymerase is responsible for the synthesis of mRNA, snRNA, and miRNA in eukaryotic cells?
How many subunits make up the core enzyme of prokaryotic RNA polymerase responsible for elongation during transcription?
How many subunits make up the core enzyme of prokaryotic RNA polymerase responsible for elongation during transcription?
What is the function of the promoter sequence in prokaryotic transcription?
What is the function of the promoter sequence in prokaryotic transcription?
What happens after the synthesis of 10 RNA nucleotides during the elongation phase of prokaryotic transcription?
What happens after the synthesis of 10 RNA nucleotides during the elongation phase of prokaryotic transcription?
What is the role of TFIIF in elongation of eukaryotic mRNA?
What is the role of TFIIF in elongation of eukaryotic mRNA?
What is the function of the 5' cap added to pre-mRNA during maturation?
What is the function of the 5' cap added to pre-mRNA during maturation?
What is the significance of the poly-A tail added to the 3' end of mRNA?
What is the significance of the poly-A tail added to the 3' end of mRNA?
What are introns and exons in the context of mRNA processing?
What are introns and exons in the context of mRNA processing?
What is the role of enhancers in gene regulation?
What is the role of enhancers in gene regulation?
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