17 Questions
What is the process associated with the formation and budding of vesicles from the plasma membrane?
Exocytosis
Name the three different mechanisms involved in the uptake of fluid and macromolecules during endocytosis.
Pinocytosis, Phagocytosis, Receptor-mediated endocytosis
What is pinocytosis?
Nonspecific ingestion of fluid and small protein molecules via small vesicles
What type of process is pinocytosis?
Constitutive process
What is involved in pinocytotic vesicle scission?
Mechanoenzymes
What is the process called when a plasma membrane sends out pseudopodia to engulf large particles into phagosomes?
Phagocytosis
What type of endocytosis is generally a receptor-mediated process?
Phagocytosis
What is required in actin-dependent endocytosis for pseudopodial extension?
Depolymerization and repolymerization of actin filaments
What is the process that brings molecules and other substances into the cell?
Endocytosis
What kind of materials are internalized in phagocytosis without involvement of antibodies and Fc receptors?
Nonbiologic materials and cellular debris
What are the two major forms of vesicular transport?
Endocytosis and Exocytosis
What process allows specific molecules to enter the cell?
Receptor-mediated endocytosis
Which form of endocytosis involves the cell engulfing solid particles or large molecules?
Phagocytosis
What are the smooth-surfaced vesicles shown in the electron micrograph indicative of?
Pinocytotic vesicles
What is the process where the cell takes in fluid and solutes into small vesicles?
Pinocytosis
In which process does the cell release substances from vesicles to the outside environment?
Exocytosis
What type of transport involves an expenditure of energy to move substances against their concentration gradient?
Active transport
Test your knowledge on cellular processes such as exocytosis and endocytosis. Learn about the formation and release of vesicles from the plasma membrane in exocytosis, and the uptake of substances through different mechanisms like pinocytosis and phagocytosis in endocytosis.
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