BIOL 2070 FINAL EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
what are the different intracellular compartments
- Membrane enclosed organelles
- Protein sorting
- Vesicular transport
- Secretory pathways
- Endocytic pathways
Phagocytosis
A type of endocytosis in which a cell engulfs large particles or whole cells
How does vesicular transport work?
- Transport Vesicles Carry Soluble Proteins and Membrane Between Compartments
- Vesicle Budding Is Driven by the Assembly of a Protein Coat
- Vesicle Docking Depends on Tethers and SNAREs
Exocytosis
a vesicle fuses with the plasma membrane, releasing its content to the cell's
surroundings
Endocytosis
extracellular materials are captured by vesicles that bud inward from the plasma
membrane and are carried into the cell.
clathrin
, a protein that plays a major role in the formation of coated vesicles
secretion
Secretory proteins are released from the cell by exocytosis
• There are two pathways
- The Constitutive exocytosis pathway provides a steady stream of proteins and lipids to
the plasma membrane and cell exterior—no signal sequence is required
- The Regulated exocytosis pathway operates in secretory cells— large amounts of
required substance is stored in vesicles and released in response to an extracellular
signal
Pinocytosis
A type of endocytosis in which the cell ingests extracellular fluid and its dissolved
solutes.
receptor-mediated endocytosis
The movement of specific molecules into a cell by the inward budding of membranous
vesicles containing proteins with receptor sites specific to the molecules being taken in;
enables a cell to acquire bulk quantities of specific substances.
calcium signalling
the use of calcium ions (Ca2+) to communicate and drive intracellular processes often
as a step in signal transduction.
scaffold proteins
organize groups of intracellular signaling molecules into signaling complexes
What are G-protein coupled receptors?
COMPLETE SOLUTIONS VERIFIED
what are the different intracellular compartments
- Membrane enclosed organelles
- Protein sorting
- Vesicular transport
- Secretory pathways
- Endocytic pathways
Phagocytosis
A type of endocytosis in which a cell engulfs large particles or whole cells
How does vesicular transport work?
- Transport Vesicles Carry Soluble Proteins and Membrane Between Compartments
- Vesicle Budding Is Driven by the Assembly of a Protein Coat
- Vesicle Docking Depends on Tethers and SNAREs
Exocytosis
a vesicle fuses with the plasma membrane, releasing its content to the cell's
surroundings
Endocytosis
extracellular materials are captured by vesicles that bud inward from the plasma
membrane and are carried into the cell.
clathrin
, a protein that plays a major role in the formation of coated vesicles
secretion
Secretory proteins are released from the cell by exocytosis
• There are two pathways
- The Constitutive exocytosis pathway provides a steady stream of proteins and lipids to
the plasma membrane and cell exterior—no signal sequence is required
- The Regulated exocytosis pathway operates in secretory cells— large amounts of
required substance is stored in vesicles and released in response to an extracellular
signal
Pinocytosis
A type of endocytosis in which the cell ingests extracellular fluid and its dissolved
solutes.
receptor-mediated endocytosis
The movement of specific molecules into a cell by the inward budding of membranous
vesicles containing proteins with receptor sites specific to the molecules being taken in;
enables a cell to acquire bulk quantities of specific substances.
calcium signalling
the use of calcium ions (Ca2+) to communicate and drive intracellular processes often
as a step in signal transduction.
scaffold proteins
organize groups of intracellular signaling molecules into signaling complexes
What are G-protein coupled receptors?
