ANATOMY+PHYS VOL 1(CHP 1-17) >CUSTOM<
9th Edition
ISBN: 9781307677706
Author: SALADIN
Publisher: MCG/CREATE
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Chapter 3, Problem 2TYR
Summary Introduction
Introduction:
All living organisms are made up of cells and its products. Cells are regarded as the simplest unit (structural and functional) of life. Cellular membrane, nucleus, and cytoplasm are the three major components of a cell. Cellular membrane, which surrounds the entire cell, is composed of phospholipids and proteins. The nucleus is bound by a nuclear membrane, and it possesses the genetic material of the cell. The cytoplasm consists of organelles, cytoskeleton (filaments and tubules), and inclusion bodies. The protoplasm denotes all living materials that are present in the cell enclosed by the cellular membrane (inside and outside the nucleus).
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Membrane 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.
Below are three statements - two of which are truths and one is a lie. Which of the following statements is a lie?
Select one:
a.The primary active transport uses external chemical energy.
b.The sodium-potassium pump which is an example of primary active transport is considered as the most important pump.
c. In primary active transport, the energy is derived secondarily from energy that has been stored in the form of ionic concentration differences between the two sides of a membrane.
If the concentration of a solute is the same both inside and outside the cell, what might you expect with regard to its transport by a membrane protein?
A. Since there is no concentration gradient, no transport either in or out of the cell is possible.
B. The transport protein has been saturated.
C. The solute must be phosphorylated with a phosphate group from ATP before further transport can occur.
D. Movement of the solute across the membrane could occur and cause accumulated on one side of the membrane by an active transport protein.
The concerted model of allosteric regulation is different from the sequential model, because:
A. The concerted model is used to explain homotropic effects
B. The sequential model is used to explain heterotropic effects
C. Both A and B
D. Neither A nor B
Chapter 3 Solutions
ANATOMY+PHYS VOL 1(CHP 1-17) >CUSTOM<
Ch. 3.1 - What are the base principles of the cell theory?Ch. 3.1 - What does it mean to say a cell is squamous,...Ch. 3.1 - Why can cells not grow to unlimited size?Ch. 3.1 - What is the difference between cytoplasm and...Ch. 3.1 - Define intracellular fluid (ICF) and extracellular...Ch. 3.1 - Prob. 1AYLOCh. 3.1 - Basic tenets of the cell theoryCh. 3.1 - The nine common cell shapesCh. 3.1 - Prob. 4AYLOCh. 3.1 - Prob. 5AYLO
Ch. 3.1 - Basic structural components of a cellCh. 3.1 - Prob. 7AYLOCh. 3.2 - Prob. 6BYGOCh. 3.2 - Prob. 7BYGOCh. 3.2 - Prob. 8BYGOCh. 3.2 - Prob. 9BYGOCh. 3.2 - Prob. 10BYGOCh. 3.2 - Prob. 11BYGOCh. 3.2 - Prob. 12BYGOCh. 3.2 - The molecules of the plasma membrane and how they...Ch. 3.2 - Prob. 2AYLOCh. 3.2 - Prob. 3AYLOCh. 3.2 - Prob. 4AYLOCh. 3.2 - Prob. 5AYLOCh. 3.2 - Prob. 6AYLOCh. 3.2 - Prob. 7AYLOCh. 3.2 - Prob. 8AYLOCh. 3.2 - Prob. 9AYLOCh. 3.2 - Structure and function of pseudopodsCh. 3.3 - Prob. 13BYGOCh. 3.3 - Prob. 14BYGOCh. 3.3 - Prob. 15BYGOCh. 3.3 - Prob. 16BYGOCh. 3.3 - Prob. 17BYGOCh. 3.3 - Prob. 18BYGOCh. 3.3 - Prob. 19BYGOCh. 3.3 - Prob. 20BYGOCh. 3.3 - Prob. 21BYGOCh. 3.3 - Prob. 1AYLOCh. 3.3 - Prob. 2AYLOCh. 3.3 - Prob. 3AYLOCh. 3.3 - Prob. 4AYLOCh. 3.3 - Prob. 5AYLOCh. 3.3 - Prob. 6AYLOCh. 3.3 - Prob. 7AYLOCh. 3.3 - Prob. 8AYLOCh. 3.3 - Prob. 9AYLOCh. 3.3 - Prob. 10AYLOCh. 3.3 - Prob. 11AYLOCh. 3.3 - Prob. 12AYLOCh. 3.3 - Prob. 13AYLOCh. 3.3 - Prob. 14AYLOCh. 3.3 - Of the preceding mechanisms of transport, which...Ch. 3.4 - Prob. 22BYGOCh. 3.4 - Briefly state how each of the following cell...Ch. 3.4 - Prob. 24BYGOCh. 3.4 - Prob. 25BYGOCh. 3.4 - Prob. 26BYGOCh. 3.4 - Prob. 1AYLOCh. 3.4 - Prob. 2AYLOCh. 3.4 - Prob. 3AYLOCh. 3.4 - Prob. 4AYLOCh. 3.4 - General structure of the endoplasmic reticulum...Ch. 3.4 - Prob. 6AYLOCh. 3.4 - Prob. 7AYLOCh. 3.4 - Prob. 8AYLOCh. 3.4 - Prob. 9AYLOCh. 3.4 - Prob. 10AYLOCh. 3.4 - Structures and functions of centrioles, the...Ch. 3.4 - Prob. 12AYLOCh. 3 - The clear, structureless gel in a cell is its a....Ch. 3 - Prob. 2TYRCh. 3 - Which of the following processes could occur only...Ch. 3 - Prob. 4TYRCh. 3 - Prob. 5TYRCh. 3 - Membrane carriers resemble enzymes except for tie...Ch. 3 - The cotransport of glucose derives energy from a....Ch. 3 - Prob. 8TYRCh. 3 - Most cellular membranes are made by a. the...Ch. 3 - Prob. 10TYRCh. 3 - Prob. 11TYRCh. 3 - Prob. 12TYRCh. 3 - Prob. 13TYRCh. 3 - Prob. 14TYRCh. 3 - Prob. 15TYRCh. 3 - Prob. 16TYRCh. 3 - Prob. 17TYRCh. 3 - Prob. 18TYRCh. 3 - Prob. 19TYRCh. 3 - Prob. 20TYRCh. 3 - Prob. 1BYMVCh. 3 - chromato-Ch. 3 - Prob. 3BYMVCh. 3 - Prob. 4BYMVCh. 3 - Prob. 5BYMVCh. 3 - Prob. 6BYMVCh. 3 - Prob. 7BYMVCh. 3 - Prob. 8BYMVCh. 3 - Prob. 9BYMVCh. 3 - Prob. 10BYMVCh. 3 - Prob. 1WWTSCh. 3 - Prob. 2WWTSCh. 3 - Prob. 3WWTSCh. 3 - Prob. 4WWTSCh. 3 - Prob. 5WWTSCh. 3 - Prob. 6WWTSCh. 3 - Prob. 7WWTSCh. 3 - Prob. 8WWTSCh. 3 - Prob. 9WWTSCh. 3 - Prob. 10WWTSCh. 3 - If someone bought a saltwater fish in a pet shop...Ch. 3 - Prob. 2TYCCh. 3 - Prob. 3TYCCh. 3 - It is often said, even in some textbooks, that...Ch. 3 - Prob. 5TYC
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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 of the following statements is/are true about transport proteins?I. They carry out biochemical functions that remove nutrients in a cell.II. They are proteins which have high specificity to a single kind of molecule.III. They function to accumulate solutes against the concentration gradient.IV. They are highly regulated in a cell.arrow_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_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
- Active transport is different from passive transport because a. no additional energy is required. b. molecules move from low concentration to high concentration. c. ions are involved. d. proteins are involved. e. water is moved across the membrane.arrow_forwardBelow are three statements - two of which are truths and one is a lie. Which of the following statements is a lie? Select one: a. Both primary and secondary transport moves solutes against their concentration gradients. b. The primary active transport prepares the conditions of the membrane gradient by making the extracellular membrane slightly more negative than the intracellular membrane. c. The primary active transport uses ATP while secondary active transport helps replenish ATP.arrow_forwardWhich of the following is the driving force for facilitated diffusion? a. GTP-GDP exchange b. Phosphorylation c. ADP Hydrolysis d. concentration gradient e. ATP Hydrolysisarrow_forward
- Which of the statements about diffusion are true? Select all that apply. A. Solutes diffuse from a region of higher concentration to a region of lower concentration. B. Negatively charged solutes diffuse toward regions of positive charge. C. Positively charged solutes diffuse toward regions of positive charge. D. Solutes diffuse from regions of low concentration to regions of high concentration. E. Lower temperatures will slow rates of diffusion.arrow_forwardThe sodium–potassium pumpa. helps establish an electrochemical gradient across the membrane.b. concentrates sodium on the outside of the membrane.c. uses a carrier protein and chemical energy.d. is present in the plasma membrane.e. All of these are correct.arrow_forwardWhat variable(s) influence(s) whether a nonpolar molecule can move across a membrane by passive diffusion? a. The structure of the phospholipids bilayer b. The difference in concentration of the molecule across the membrane c. The presence of transport proteins in the membrane d. All of the choices are correct.arrow_forward
- Which of the following presents the correct sequence of steps involved in the short-distance transport of solutes across plasma membrane? A. A-D-B-C B. D-B-A-C C. B-A-C-D D. A-B-C-Darrow_forwardIon channels are formed by a particular kind of membrane protein that allows the passage of a specific ion (or ions) under certain conditions. This type of protein is most likely a(n) a. peripheral membrane protein with additional hydrophobic domains b. integral membrane protein with a transmembrane domain c. a cholesterol-like molecule that is positioned in the phospholipid bilayer d. membrane phospholipid with hydrophilic head group e. soluble enzyme anchored to a scaffolding protein on the cytoplasmic side of the plasma membranearrow_forwardWhich of these statements about facilitated diffusion is true?a. In facilitated diffusion, net movement is down the concentrationgradient.b. Facilitated diffusion requires the expenditure of energy.c. Facilitated diffusion does not require a carrier protein.d. Facilitated diffusion moves materials through ion pumps.e. Facilitated diffusion moves materials in vesicles.arrow_forward
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