EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Textbook Question
Chapter 3, Problem 4CR
Define passive transport and name the three passive transport methods that are used to transport different molecules across the plasma membrane.
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1) You are studying a transport protein. It appears to bind temporarily to the molecule to be transported. During normal transport, no energy is expended. The addition of a particular molecule that closely resembles the normally transported molecule inhibits transport. An increase in the concentration of the normally transported molecule in the presence of a constant concentration of the inhibitor increases the rate of transport. What kind of transport is described?
2) What are peripheral membrane proteins?
Describe the passive processes of membrane transport, including simple diffusion, facilitated diffusion, and osmosis.
Describe the different types of membrane transport. Which require energy, and which are passive?
Chapter 3 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
Ch. 3 -
1. What is your opinion on this controversy? What...Ch. 3 - Suppose that you held frozen embryos at a private...Ch. 3 - Prob. 1CRCh. 3 - Prob. 2CRCh. 3 - Describe how phospholipids are oriented in the...Ch. 3 - Define passive transport and name the three...Ch. 3 - Compare and contrast endocytosis and exocytosis.Ch. 3 - Describe the activity of the sodium-potassium pump...Ch. 3 - Prob. 7CRCh. 3 - Prob. 8CR
Ch. 3 -
9. What are the four stages of ATP production...Ch. 3 -
10. Describe what happens to a cell’s ability to...Ch. 3 -
1. Which of the following adaptations would...Ch. 3 - Which of the following is always at the same...Ch. 3 - Prob. 3TYCh. 3 - Red blood cells placed in distilled water will: a....Ch. 3 - Which organelles are most active during vigorous...Ch. 3 - Phagocytic white blood cells engulf and digest...Ch. 3 - Prob. 7TYCh. 3 -
8. Which organelles would be active in liver...Ch. 3 - Prob. 9TYCh. 3 -
10. Which of the following is/are the most...Ch. 3 - Prob. 11TYCh. 3 - Prob. 12TYCh. 3 -
13. In which stage of cell respiration does...Ch. 3 - Which of the following is/are recycled during...Ch. 3 - Most of the ATP produced during cell respiration...Ch. 3 - Imagine that you are shown two cells under the...Ch. 3 - The sodium-potassium pump is a large protein...Ch. 3 - Mitochondria resemble a bacterial cell in a number...Ch. 3 - Prob. 4AWKCh. 3 - Recently, a young man from Derby in the United...Ch. 3 - You have been selected to serve on a jury for a...Ch. 3 - Although normal physiological processes produce...
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- Define cell membrane transport and membrane selectivity. Explain why the plasma membrane is selectively permeable. List and discuss which molecules can and cannot cross the membrane and explain why. Discuss why some molecules can cross directly while others require transport proteins.arrow_forwardWhat factors affect the degree of membrane fluidity?arrow_forwardDescribe the difference between carrier proteins and channel proteins. What is required for the passive transport of molecules through these membrane proteins?arrow_forward
- For osmosis and the different types of diffusion, describe the mechanism by which movement occurs, the energy requirements, and the types of molecules that movearrow_forwardProvide the major types of transport that move substances across the cell membrane.arrow_forwardDescribe the two types of passive transport. Explain what kind of proteins are required for each type of passive transport and highlight the similarities and differences of these proteins.arrow_forward
- Identify whether each method of membrane transport is passive or active by dragging the label to the correct boxarrow_forwardName three factors that affect the rate facilitated diffusion across a membrane.arrow_forwardWhat would happen in each of the following cases where something related to intracellular transport is altered? Assume in each case that the protein involved is a soluble protein, not a membrane protein. State where each protein would be located and explain each of your answers. You add a signal sequence (for the Golgi) to the N-terminal end of a normally cytosolic protein. You change the hydrophobic amino acids in an ER signal sequence into other, hydrophobic, amino acids.arrow_forward
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