Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 5.5, Problem 2SB
Summary Introduction
To review:
The difference between bulk endocytosis and receptor-mediated endocytosis.
Introduction:
When a substance or molecule is required to be transported actively in bulk inside the cell, a portion of the cell membrane folds around the desired particle and engulfs it. These membrane-enclosed sacs are known as vesicles and this process is known as endocytosis. This process requires energy in the form of ATP (adenosine triphosphate).
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Among the statements a, b and c, which is/are false?
a) Endocytosis is the formation of vacuoles by the plasma membrane for the purpose oftransport inside the cell a small content of extracellular fluid.
b) Exocytosis is the formation of vacuoles by the plasma membrane for the purpose oftransport a small amount of intracellular fluid out of the cell.
c) Pinocytosis is a form of endocytosis.
d) All of these statements are false.
e) None of these statements is false.
Exocytosis is the last step of secretion of proteins from the cell. There are two broad types of exocytosis.
a) Name the two types of exocytosis
b) Describe each type of exocytosis (i.e. how are they different from each other?)
c) Give at least one example of each type of exocytosis.
What is the sequence of events in receptor-mediated endocytosis?
Chapter 5 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 5.1 - Describe the fluid mosaic model for membrane...Ch. 5.1 - Give two examples each of integral proteins and...Ch. 5.2 - What is the difference between passive and active...Ch. 5.2 - Prob. 2SBCh. 5.3 - Prob. 1SBCh. 5.3 - Prob. 2SBCh. 5.4 - Prob. 1SBCh. 5.4 - Prob. 2SBCh. 5.5 - Prob. 1SBCh. 5.5 - Prob. 2SB
Ch. 5 - In the fluid mosaic model: plasma membrane...Ch. 5 - Which of the following statements is false?...Ch. 5 - The freeze-fracture technique demonstrated: a....Ch. 5 - A characteristic of carrier molecules in a primary...Ch. 5 - A driving ion moving through a membrane channel in...Ch. 5 - Phagocytosis illustrates which phenomenon? a....Ch. 5 - Place in order the following events of...Ch. 5 - Prob. 8TYKCh. 5 - Which of the following statements is true for the...Ch. 5 - Using the principle of diffusion, a dialysis...Ch. 5 - Discuss Concepts The bacterium Vibrio cholera...Ch. 5 - Prob. 12TYKCh. 5 - Prob. 13TYKCh. 5 - Prob. 15TYKCh. 5 - Some cancer cells are insensitive to typical...Ch. 5 - Some cancer cells are insensitive to typical...
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- What are several other examples of ligands that canundergo receptor-mediated endocytosis?arrow_forwardWhat is the sequence of events in receptor-medicated endocytosis?arrow_forwardWhich type of endocytosis involves the binding of specific substancesin the extracellular fluid to membrane proteins? What does this type oftransport enable a cell to do?arrow_forward
- Endocytosis and exocytosis are both forms of [ ACTIVE / PASSIVE ] transport that [ DO / DO NOT ] require energy. Outline an example/scenario in which a cell would need to perform a form of endocytosis. Outline an example/scenario in which a cell would need to perform exocytosis. a) Name the 3 specific types of endocytosis. b) Exocytosis is considered the opposite/reverse process as? Pls helparrow_forwardQ1: If endocytosis itself is nonspecific, how does receptor-mediated endocytosis bring only certain molecules into a cell? Q2: What sorts of molecules could be moved by endocytosis or exocytosis, but not by diffusion? Q3: How does the fluid that enters a cell via pinocytosis differ from the fluid that enters by osmosis?arrow_forwardWhat is the role that transport vesicles play in endocytosis, exocytosis, and the movement of materials between one membrane-enclosed organelle and another?arrow_forward
- How is receptor-mediated endocytosis similar to facilitateddiffusion? How is it different?arrow_forwardHow does receptor-mediated endocytosis work? What is a ligand and how does it help cells collect specific molecules from the environment?arrow_forwardReceptor mediated endocytosis requires the presence of O a) carrier proteins that move molecules across the membrane into the cytosol. b) primary active transport pumps. c) specialized proteins on the membrane surface.arrow_forward
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