Homework Answers
1. ANSWER - c.
EXPLANATION - E. coli is a mesophile. It have the ability to live in between 20°C to 45°C. Therefore, at 4°C, no growth will occur. So, the graph will be a straight line.
2. ANSWER - b.
EXPLANATION - Phsychrotrophs best grown betwenn the temperature of 0–15 °C. So, Listeria monocytogenes have the ability to tolerate the temperature of 4 °C . So, the graph is b.
3. ANSWER - a.
EXPLANATION - The bacterium is isolated from deep ocean floor. It is a phsychrophilic bacteria. It is adapted to grow in between 2–4 °C . Therefore, it will grow under 4 °C . So, the graph will exponential (a).
Add Answer to:
Escherichia coli is a mesophile. When placing inside a refrigerator (4°C), which line in the below...
The growth rate of Escherichia coli, a common bacterium found in the human intestine
Growth of Bacteria The growth rate of Escherichia coli, a common bacterium found in the human intestine, is proportional to its size. Under ideal laboratory conditions, when this bacterium is grown in a nutrient broth medium, the number of cells in a culture doubles approximately every 20 min. (a) If the initial population is 20, determine the function Q(t) that expresses the growth of the number of cells of this bacterium as a function of time t (in minutes). (b) How long would...
4.) Among the following six statements given below which two best account for the results obtained...
4.) Among the following six statements given below which two best account for the results obtained by the researchers who produced Figure 1? 1. Low glucose conditions caused mutations that made individual E. coli cells better suited to these conditions 2. Daughter cells acquired the ability to tolerate low-glucose conditions as they received enzymes and membrane components that had been modified by their mother cell. 3. The initial E. coli population may have included some cells whose genes favored their...
Part A Which of the following statements accurately describes bacterial cell walls? In bacteria with acid-tast...
Part A Which of the following statements accurately describes bacterial cell walls? In bacteria with acid-tast cell walls, the carboxylic acid in the walls forms a layer outside a thin layer of hydrophilic polypeptides. The cell walls of gram-negative bacteria contain many more layers of peptidoglycan than those of gram-positive bacteria. In gram-negative bacteria, the thin layer of peptidoglycan is surrounded by an outer membrane made of phospholipids, lipopolysaccharides, and proteins Gram-negative bacterial cell walls contain teichoic acids, whereas the...
I need help answering the following microbiology questions. 1. The three tubes in the image to...
I need help answering the following microbiology
questions.
1. The three tubes in the image to the right contain glucose and the pH indicator phenol red. The middle and left tubes were inoculated with bacteria, and the right tube was left uninoculated as a control. Which of the tubes show evidence of heterolactic fermentation? a. Left tube Gas b. Middle tube c. Right tube d. None of the three tubes Yellow Red Red 2. Which of the three tubes in...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein is active only when it is activated, but not inhibited, by its upstream signaling molecules. Activation and inhibition are indicated by normal and blunt arrows, respectively. Assume that the transcription regulator can be activated by either the binding protein or the kinase that are immediately upstream of the transcription factor. Under which of the following conditions will the expression of target:gene "X" be induced?...
microbiology help TOT Zoo Add Page Insert Table Chart Text Shape Media Comment These questions will...
microbiology help
TOT Zoo Add Page Insert Table Chart Text Shape Media Comment These questions will serve in lieu of a lab report for Exercise 15, 16, and 17 You will find the answer to these questions in the background, procedure, results and interpretation sections of manual Exercise 15, 16, and 17, videos, Actions of Selective and Differential Media Chart, and the Principle/Theory article in homework section.) General Questions 1. What is the purpose (function) of selective media? (How does...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
LAR STUDY GUM Exercises 76, 77, 78, 79,719, 7.11.8.19.2.0.7.0 1. Define niche A ecological envi B...
LAR STUDY GUM Exercises 76, 77, 78, 79,719, 7.11.8.19.2.0.7.0 1. Define niche A ecological envi B by-product of microbial metabolic activities C icorial growth D host-preste relationship E None of the above 2.Microbes muy compete ayust the environment tempera requirements in order to compete for nutrients A True B. False , c.) to the prima A B The pathogenesis of disease can move son of issues by extracellule enzymes or physical blocking of capillaries due to unlimited microbial greneth True...
Please need help answering question A the pages of background information are posted thanks Read page...
Please need help answering question A the pages of background
information are posted thanks
Read page 196-197 and figure 6.20. regarding Meselson and
Stahl’s experiment regarding DNA replication. And Answer the
following question
If you are using this radioactive technique in mouse cells,
what would happen in each phase of G1, S, G2, mitosis and meiosis
assuming that you are grown cells in 15N medium for many
generations and cells in G1are then switched to 14N medium?
G1
S
G2...
Write a c++ program in that file to perform a “Search and Replace All” operation. This...
Write a c++ program in that file to perform a “Search and Replace All” operation. This operation consists of performing a case-sensitive search for all occurrences of an arbitrary sequence of characters within a file and substituting another arbitrary sequence in place of them. Please note: One of the biggest problems some students have with this exercise occurs simply because they don’t read the command line information in the course document titled “Using the Compiler’s IDE”. Your program: 1. must...
4.) Among the following six statements given below which two best account for the results obtained by the researchers who produced Figure 1? 1. Low glucose conditions caused mutations that made individual E. coli cells better suited to these conditions 2. Daughter cells acquired the ability to tolerate low-glucose conditions as they received enzymes and membrane components that had been modified by their mother cell. 3. The initial E. coli population may have included some cells whose genes favored their...
Part A Which of the following statements accurately describes bacterial cell walls? In bacteria with acid-tast cell walls, the carboxylic acid in the walls forms a layer outside a thin layer of hydrophilic polypeptides. The cell walls of gram-negative bacteria contain many more layers of peptidoglycan than those of gram-positive bacteria. In gram-negative bacteria, the thin layer of peptidoglycan is surrounded by an outer membrane made of phospholipids, lipopolysaccharides, and proteins Gram-negative bacterial cell walls contain teichoic acids, whereas the...
I need help answering the following microbiology
questions.
1. The three tubes in the image to the right contain glucose and the pH indicator phenol red. The middle and left tubes were inoculated with bacteria, and the right tube was left uninoculated as a control. Which of the tubes show evidence of heterolactic fermentation? a. Left tube Gas b. Middle tube c. Right tube d. None of the three tubes Yellow Red Red 2. Which of the three tubes in...
32. Study the signaling pathway illustrated below, which involves two different receptors. Assume that a protein is active only when it is activated, but not inhibited, by its upstream signaling molecules. Activation and inhibition are indicated by normal and blunt arrows, respectively. Assume that the transcription regulator can be activated by either the binding protein or the kinase that are immediately upstream of the transcription factor. Under which of the following conditions will the expression of target:gene "X" be induced?...
microbiology help
TOT Zoo Add Page Insert Table Chart Text Shape Media Comment These questions will serve in lieu of a lab report for Exercise 15, 16, and 17 You will find the answer to these questions in the background, procedure, results and interpretation sections of manual Exercise 15, 16, and 17, videos, Actions of Selective and Differential Media Chart, and the Principle/Theory article in homework section.) General Questions 1. What is the purpose (function) of selective media? (How does...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
LAR STUDY GUM Exercises 76, 77, 78, 79,719, 7.11.8.19.2.0.7.0 1. Define niche A ecological envi B by-product of microbial metabolic activities C icorial growth D host-preste relationship E None of the above 2.Microbes muy compete ayust the environment tempera requirements in order to compete for nutrients A True B. False , c.) to the prima A B The pathogenesis of disease can move son of issues by extracellule enzymes or physical blocking of capillaries due to unlimited microbial greneth True...
Please need help answering question A the pages of background
information are posted thanks
Read page 196-197 and figure 6.20. regarding Meselson and
Stahl’s experiment regarding DNA replication. And Answer the
following question
If you are using this radioactive technique in mouse cells,
what would happen in each phase of G1, S, G2, mitosis and meiosis
assuming that you are grown cells in 15N medium for many
generations and cells in G1are then switched to 14N medium?
G1
S
G2...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago