Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 11MC
A Gram-negative cell is moving uric acid across the cytoplasmic membrane against its chemical gradient. Which of the following statements is true?
- a. The exterior of the cell is probably electrically negative compared to the interior of the cell.
- b. The acid probably moves by a passive means such as facilitated diffusion.
- c. The acid moves by an active process such as active transport.
- d. The movement of the acid requires phagocytosis.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
a. Define diffusion. Is diffusion a passive or an active process? Explain how solute moves in this way.
b. Use your knowledge of diffusion to explain what happened over time when you observed a crystal of methylene blue dropped into a beaker of water. Be sure to use equilibrium in your explanation.
c. Explain your observations over time after a drop of methylene blue and a drop of potassium permanganate were placed in the agar. What factors affect the rate of diffusion?
d. What are tissues? Name the four major types of tissues in the human body.
e. Name the three primary germ layers. Name the primary germ layers from which epithelial tissues and connective tissues develop.
f. List general characteristics that all epithelial tissues have in common.
g. Name the functions of epithelial tissue. Which type of epithelial tissue is found in areas that need protection?
h. Know how to identify simple squamous epithelium, simple cuboidal epithelium, simple columnar…
Statement 1: The direction of diffusion of a solute across a membrane is determined by its
concentration gradient and always moves toward equilibrium.
Statement 2: In passive transport, solutes move down the gradient from a region of low
concentration to a region of high concentration.
A
Both statements are true.
Both statements are false.
C) Statement 1 is true. Statement 2 is false.
Statement 1 is false. Statement 2 is true.
Which of the following techniques can be applied to fractionate intracellular compartments?
a.
Subcellular fractionation & density gradient equilibrium centrifugation
b.
Density gradient equilibrium centrifugation & ion exchange chromatography
c.
Subcellular fractionation, density gradient equilibrium centrifugation & ion exchange chromatography
d.
Subcellular fractionation & ion exchange chromatography
Chapter 3 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 3 - Prob. 1TMWCh. 3 - In 1985, an Israeli scientist discovered the...Ch. 3 - Why is a pilus a type of fimbria, but a flagellum...Ch. 3 - Why is the microbe illustrated in Figure 3.2 more...Ch. 3 - When the bacterium Escherichia coli is grown in a...Ch. 3 - Prob. 6TMWCh. 3 - Why do scientists consider bacterial and archaeal...Ch. 3 - Why did scientists in the 19th and early 20th...Ch. 3 - Why do some scientists consider archaea, which are...Ch. 3 - Why are eukaryotic glycocalyces covalently bound...
Ch. 3 - Many antimicrobial drugs target bacterial cell...Ch. 3 - Colchicine is a drug that inhibits microtubule...Ch. 3 - A cell may allow a large or charged chemical to...Ch. 3 - Which of the following statements concerning...Ch. 3 - A 9 + 2 arrangement of microtubules is seen in...Ch. 3 - Which of the following is most associated with...Ch. 3 - Which of the following is not associated with...Ch. 3 - Which of the following is true of Svedbergs? a....Ch. 3 - Which of the following statements is true? a. The...Ch. 3 - Prob. 8MCCh. 3 - Bacterial flagella are ______________. a. anchored...Ch. 3 - Prob. 10MCCh. 3 - A Gram-negative cell is moving uric acid across...Ch. 3 - Gram-positive bacteria _______________. a. have a...Ch. 3 - Endospores ________________. a. are reproductive...Ch. 3 - Prob. 14MCCh. 3 - Dipicolinic acid is an important component of...Ch. 3 - Match the structures on the left with the...Ch. 3 - Match the term on the left with its description on...Ch. 3 - Label the structures of the following prokaryotic...Ch. 3 - Label each type of flagellar arrangement.Ch. 3 - A scientist who is studying passive movement of...Ch. 3 - Describe (or draw) an example of diffusion down a...Ch. 3 - Sketch, name, and describe three flagellar...Ch. 3 - Prob. 3SACh. 3 - The term fluid mosaic has been used in describing...Ch. 3 - A local newspaper writer has contacted you, an...Ch. 3 - Prob. 6SACh. 3 - Compare bacterial cells and algal cells, giving at...Ch. 3 - Contrast a cell of Streptococcus pyogenes (a...Ch. 3 - Differentiate among pili, fimbriae, and cilia,...Ch. 3 - Prob. 10SACh. 3 - Prob. 11SACh. 3 - Prob. 12SACh. 3 - What is the function of glycocalyces and fimbriae...Ch. 3 - Prob. 14SACh. 3 - Compare and contrast three types of passive...Ch. 3 - Prob. 16SACh. 3 - Prob. 17SACh. 3 - Prob. 18SACh. 3 - Prob. 1CTCh. 3 - Methylene blue binds to DNA. What structures in a...Ch. 3 - Prob. 3CTCh. 3 - Prob. 4CTCh. 3 - A researcher carefully inserts an electrode into...Ch. 3 - Prob. 6CTCh. 3 - An electron micrograph of a newly discovered cell...Ch. 3 - An entry in a recent scientific journal reports...Ch. 3 - Prob. 9CTCh. 3 - Prob. 10CTCh. 3 - Prob. 11CTCh. 3 - Prob. 12CTCh. 3 - Prob. 13CTCh. 3 - Prob. 14CTCh. 3 - Using the following terms, fill in the following...
Knowledge Booster
Learn more about
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
- Using the principles of osmosis, explain why movement of Na + through a plasma membrane is followed by movement of water. Use this concept to explain the rationale on which oral rehydration therapy is based.arrow_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_forward1) We measured weights before and after soaking a potato in water of different salinities to demonstrate osmosis. There are many other types of membrane transport (as we learned from the Amoeba Sisters!), each with their role in maintaining homeostasis and providing energy, communication, and waste removal for the cell. So why dwell on osmosis? There are some practical bigger- picture things to consider. Choose one of the following scenarios. Describe the scenario. Describe the chain of events terms of tonicity_and movement of water into or out of cells represented by the scenario. Describe the predicted outcomes for the cells/organisms involved. What happens when you dry brine a turkey before cooking? ● • What happens to organisms in soil near salted roads when snow melt and rains occur? Why is sugar considered a good preservative? What is the challenge of heavy rains along the Mississippi River for organisms in the Gulf of Mexico? ● • What happens to fruit when you add sugar? ●arrow_forward
- Which 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_forwardActive transport must function continuously because_______. a. plasma membranes wear out b. cells must be in constant motion c. facilitated transport opposes active transport d. diffusion is constantly moving the solutes in the other directionarrow_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_forward
- Which of the following types of transporters would be utilized to move two different types of molecules across the cell membrane in the same direction? a. Uniporter b. Symporter/Cotransporter c. Antiporter d. Chemiporter e. Protoporterarrow_forwardDefine the following terms: a. semipermeable membrane b. hypotonic c. hypertonic d. crenation e. hemolysisarrow_forwardThis graph shows facilitated diffusion of a compound across a cytoplasmic membrane and into a cell. As the external concentration of the compound is increased, the rate of uptake increases until it reaches a point where it slows and then begins to plateau. This is not the case with passive diffusion, where the rate of uptake continually increases as the solute concentration increases. Why does the rate of uptake slow and then eventually plateau with facilitated diffusion?arrow_forward
- For bacteria to infect cells, it produces an extracellular protease that destroys tissue structure particularly transmembrane proteins. The bacteria are grown in culture so that the protease can be isolated. Then the culture is centrifuged. In which sample would the protease be most likely found? A. Precipitate containing whole bacteria B. Cell-free filtrate; that is, the supernatant C. The lysate of the whole culture D. Lysed bacteria only E. All of thesearrow_forwardWhich of the following statements about "leak channels" in the plasma mem- brane is correct? A. Proteins that form these channels bind to solutes to allow them to pass into the cell. B. They are passageways formed by proteins to allow water and ions to move passively through the membrane. C. They allow small ions and molecules to move between adjacent cells. D. They are formed by glycoprotein and proteoglycans to allow hormones to enter cells.arrow_forwardThe primary function of the kidney is to exchange molecules across a membrane between the blood and the urine. One type of kidney cell has a basic rectangular shape, except for a single surface, which is lined with tiny, finger-like projections that extend into the surrounding extracellular space. Which of the following best explains the advantage these projections provide the cell? The projections increase the selectivity of the membrane because the small size of the projections limits the number of transport proteins that can be embedded in the membrane. The projections increase the volume of the cell without affecting the surface area, which increases the metabolic needs of the cell. The projections increase the surface area–to-volume ratio of the cell, which allows for more efficient nutrient exchange with the environment. The projections increase the speed at which an individual molecule can move,…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license