Human Biology: Concepts and Current Issues - With Access (Custom)
15th Edition
ISBN: 9781323045237
Author: Johnson
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 2TY
Which of the following would be most likely to enter a cell by diffusion directly through the phospholipid bilayer?
a. potassium ions
b. steroid hormone
c. hydrogen ions
d. glucose
e. sodium ions
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Which of the following can enter the cell by diffusion through the plasma membrane?
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For the following modes of transport for membranes, tell whether the flow is with or against chemical potenial. Meaning +deltaG or -deltag
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Chapter 3 Solutions
Human Biology: Concepts and Current Issues - With Access (Custom)
Ch. 3 -
1. What is your opinion on this controversy? What...Ch. 3 - Prob. 2QCCh. 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 would be most likely to...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...
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- The tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a. phosphate groups; hydrophobic b. fatty acid groups; hydrophilic c. phosphate groups; hydrophilic d. fatty acid groups; hydrophobicarrow_forwardChoose which substances cannot pass through the phospholipid bilayer of the plasma membrane. A. Gasses B. Charged molecules C. Hydrophobic molecules D. Lions E. Water F. ATParrow_forwardWhich of the following can most easily pass through the phospholipid bilayer of the cell plasma membrane without the involvement of proteins? A. small non-polar molecules B. small polar molecules C. large non-polar molecules D. large polar moleculesarrow_forward
- Which of the following membrane transport proteins would you expect to be the most selective at conducting substances into the eukaryotic cell cytoplasm (although not the most rapid)? A. the bicarbonate ion channel B. the chloride ion channel C. the fructose carrier protein D. the sodium ion channel E. the potassium ion channelarrow_forwardWhich of the following is always at the same concentration inside and outside the cell? a. potassium ions b. water c. hydrogen ions d. glucose e. sodium ionsarrow_forwardThe process of “active transport" through a membrane may be described by which of the following? A. the movement of ions and small molecules away from regions where they are in high concentration. B. the use of energy from ATP to move ions and small molecules into regions where they are in lower concentration. C. the plasma membrane engulfs the substance and moves it through the membrane. D. the use of energy from ATP to move ions and small molecules against their concentration gradient.arrow_forward
- Practitioners of naturopathic medicine often use “essential oils” such as lavender oil. (Note that essential refers to their essence or scent and does not imply that these substances are necessary for health.) One of the components of lavender oil is shown below. Based on its structure, could this molecule diffuse through the cell membrane of a skin cell after the oil was applied to the skin surface?arrow_forwardCells transport sodium ions out of the cell against the sodium concentration gradient. This is an example of: a. facilitated diffusion b. simple diffusion c. diffusion via channel proteins d. endocytosis e. active transportarrow_forwardMembrane proteins perform the following functions EXCEPT one. Which One? A. form the glycocalyx B. act as receptor proteins C. form pores to allow the passage of small solutes D. behave as enzymes.arrow_forward
- Membrane proteins play the following roles: Select one: a. All of the answers b. Enzymes c. Cell communication d. Transportarrow_forwardWhich of the following types of proteins allow materials to move into, or out of, the cell?a. receptor proteins b. junction proteins c. enzymatic proteinsd. channel proteinsarrow_forwardWhich of the following is incorrect regarding facilitated diffusion?a. It is a passive process.b. It allows the movement of molecules from areas of lowconcentration to areas of high concentration.c. It may use either channel or carrier proteins.d. It allows the rapid transport of glucose across the membrane.arrow_forward
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