EBK HUMAN ANATOMY
8th Edition
ISBN: 9780100799554
Author: Martini
Publisher: YUZU
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Chapter 2, Problem 10RFT
All of the following membrane transport mechanisms are passive processes except
(a) facilitated diffusion.
(b) vesicular transport.
(c) diffusion.
(d) osmosis.
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The distinctive properties of facilitated diffusion are:
(a) Increase the speed of diffusion of substances
(b) Transport of substances towards increasing concentration
Additional energy consumption for transport
(c)
Transfer of substance involving carriers
(d)
Integration flux of substance and ion transport
(e)
Which of the following processes requires the cell to expend metabolic energy directly (e.g., from ATP)? (a) osmosis (b) facilitated diffusion (c) all forms of carrier-mediated transport (d) active transport (e) simple diffusion
Diffusion is important in body fluids because this process tends to:(a) increase local concentration gradients. (b) eliminate local concentration gradients. (c) move substances against their concentration gradients. (d) create concentration gradients.
Chapter 2 Solutions
EBK HUMAN ANATOMY
Ch. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Prob. 2RFTCh. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Level 1 Reviewing Facts and Terms
Match each...Ch. 2 - Prob. 5RFTCh. 2 - Prob. 6RFTCh. 2 - Level 1 Reviewing Facts and Terms Match each...Ch. 2 - Match each numbered item with the most closely...Ch. 2 - Prob. 9RFTCh. 2 - All of the following membrane transport mechanisms...
Ch. 2 - Prob. 11RFTCh. 2 - Compared to the intracellular fluid, the...Ch. 2 - 13. Label the following organelles on the diagram...Ch. 2 - Prob. 14RFTCh. 2 - Prob. 15RFTCh. 2 - 16. Three major functions of the endoplasmic...Ch. 2 - 17. A selectively permeable plasma membrane
(a)...Ch. 2 - Prob. 18RFTCh. 2 - Identify the advantages a cell has because its...Ch. 2 - 2. Identify the three basic concepts that make up...Ch. 2 - 3. Identify the three passive processes by which...Ch. 2 - Compare and contrast facilitated diffusion and...Ch. 2 - Prob. 5RCCh. 2 - Prob. 6RCCh. 2 - 7. Name the stages of mitosis shown in this...Ch. 2 - Identify the four general functions of the plasma...Ch. 2 - Tell why the skin of your hands gets swollen and...Ch. 2 - Prob. 2CTCh. 2 - Experimental evidence demonstrates that in the...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which statements are consistent with the fluid-mosaic model of membranes? (a) All membrane proteins are bound to the interior of the membrane. (b) Both proteins and lipids undergo transverse (flip-flop) diffusion from the inside to the outside of the membrane. (c) Some proteins and lipids undergo lateral diffusion along the inner or outer surface of the membrane. (d) Carbohydrates are covalently bonded to the outside of the membrane. (e) The term mosaic refers to the arrangement of the lipids alone.arrow_forwardDistinguish between simple diffusion (SD), facilitated diffusion (FD), and active transport (AT) across a membrane for the following questions. (a) Which processes are energy dependent? (b) Which processes need some kind of carrier protein(s)? (c) Which processes can be saturated by substrate? (d) Which processes can establish a concentration gradient? (e) How much energy does it take to transport an uncharged substrate in, if its starting inside concentration is 10-fold greater than outside?arrow_forwardThe three fundamental classes of proteins involved in transport across membranes are: i) channelsii) pumpsiii) exchangers For each class, describe its essential features, explain how transport is accomplished and name at least one representative example.arrow_forward
- Define the terms (i) facilitated diffusion, (ii) primary active transport and (iii) secondary active transport. Identify which of these transport types the following are examples of: a) ATP/ADP translocase b) K^+ channels c) Bacteriorhodopsinarrow_forwardPlease answer this question with the simplest answer and no more than five sentencesarrow_forward14. (a) Define osmosis and diffusion. (b) Make a sketch to represent each process in (a). Label your sketch. (c) Explain why these processes are essential for cellular function. Ku Carrow_forward
- 1)What is the second type of lipid that plays a major role in the plasma membrane? This lipid does not have polar and nonpolar regions (its not amphiphilic) but plays a critical role in membrane permeability. A)Triglycerdies B) Steriod hormones c) cholesterol 2) In _______________, a single substrate/solute move from a high concentration area to a lower concentration are without the aid of any additional molecules. A) Diffusion B)Facilitated diffusion C) Cotransport 3)Channel proteins require a confirmational change in order to properly function. A) Hydrophilic B) ionic C) Polararrow_forwardThe fundamental bilayered structure of the plasma membrane is determined almost exclusively by (a) phospholipid molecules, (b) peripheral proteins, (c) cholesterol molecules, (d) integral proteins.arrow_forwardOnly typed explaination otherwise leave it Carrier proteins that bind to substances to move them through the membrane and proteins that form pores or channels to allow passage of substances through the membrane are collectively called __________. A) integral proteins B) transport proteins C) transmembrane proteins D) glycoproteinsarrow_forward
- Which answer is correct (a or b) for the question about why your hands and feet get wrinkled after staying in the bath for too long. a) the water and dissolved particles are drawn out of your skin by diffusion into the large body of water around you. b) the water is actually drawn into your skin by osmosis. explain why (a or b) is correct.arrow_forwardWhat do facilitated diffusion, primary active transport and secondary active transport have in common? a) their ability to transport molecules depends on a membrane protein b) they utilize energy in the form of ATP to move molecules c) they move small, lipophilic molecules across the membrane d) they can move molecules against a concentration gradientarrow_forward11. Which of the following would indicate that facilitated diffusion was taking place? A) A substance was moving from a region of low concentration into a region of higher concentration. B) Substances were moving against the diffusion gradient. C) A substance was slowing as it moved down its concentration gradient. D) ATP was being rapidly consumed as the substance moved. E) A substance was diffusing much faster than the physical condition indicated it should. 12. Osmosis, the diffusion of water is distinct from the diffusion of oxygen because water is a solvent. b. water is non-polar. water is a large molecule. d. oxygen is a dissolved gas. oxygen is highly polar. а. с. е. 13. Celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar stalks left in a salt solution become limp and soft. From this we can deduce that the cells of the celery stalks are A) hypertonic to both fresh water and the salt solution. B) hypotonic to both fresh water and the…arrow_forward
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