What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 4, Problem 8SA
Summary Introduction
To analyze:
Why osmosis and simple and facilitated diffusion are classified as passive transport.
Introduction:
Passive transport of molecules requires no energy.
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Define and provide an example for each of the following: simple diffusion, facilitated diffusion, osmosis, passive transport and active transport.
What do diffusion, facilitated diffusion, and osmosis have in common? In what way do they differ?
What are some examples of diffusion, osmosis, facilitated diffusion and active transport?
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What Is Life? A Guide to Biology with Physiology
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- Which of the following methods of transport is being used to transfer the substance into the cell in the accompanying graph? a. diffusion down a concentration gradient b. osmosis c. facilitated diffusion d. active transport e. vesicular transport f. It is impossible to tell with the information provided.arrow_forwardDistinguish between the following pairs of terms: a. diffusion; osmosis b. passive transport; active transport c. endocytosis; exocytosisarrow_forwardWhy does osmosis occur?arrow_forward
- The principal force driving movement in diffusion is______. a. temperature b. particle size c. concentration gradient d. membrane surface areaarrow_forwardWhich plasma membrane component can be either found on its surface or embedded in the membrane structure? a. protein b. cholesterol c. carbohydrate d. phospholipidarrow_forwardA transport protein requires ATP to pump sodium ions across a membrane. This is a case of ______. a. passive transport b. active transport c. facilitated diffusion d. a and carrow_forward
- What do diffusion and osmosis have in common? How are they different from active transport? In the nervous system, where can you find examples of each of these?arrow_forwardHow does Active transport differ from facilitated diffusion?arrow_forwardwhat is simple and facilitated diffusion?arrow_forward
- What type of processes (active or passive) are diffusion and osmosis? What are the 3 major characteristicsof these types of processes (active or passive)arrow_forwardHow are facilitated diffusion and active transport similar and different?arrow_forwardhow are simple diffusion and facilitated diffusion similar? how are they different? how are facilitated diffusion and active transport similar? how are they different?arrow_forward
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