Biology: Concepts and Investigations
3rd Edition
ISBN: 9780073525549
Author: Mariëlle Hoefnagels Dr.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 3.7, Problem 1MC
Summary Introduction
To explain:
The reason that researchers determine how both magnetism and oxygen guide bacteria for movements.
Concept introduction:
Bacteria are small unicellular prokaryotic organisms without a predefined nucleus and the presence of a single chromosome inside the cytoplasm called as nucleoid. There are respiratory mesosomes present for respiration and ribosomes for the synthesis of proteins. They have flagella for locomotion and motility in fluids.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What is the endosymbiotic theory? Discuss two lines of evidence that support the theory.
In the experiment by Bernard Davis, bacterial F+cells and F- cells were growing while separated by a filter. Filter pores allowed the passage of the liquid medium but not the bacteria cells. As a result:
1) prototype colonies grew well on minimal medium
2) F+ cells were converted to F- cells despite the physical separation
3)F- cells were converted F+ cells despite the physical separation
4)F+ cells were not converted to F- cells because of the physical separation
5) F- cells were not converted to F+ cells because of the physical separation
6)there was no growth of prototypes on minimal medium
What benefit do magnetic bacteria accrue from havingmagnetosomes?
Chapter 3 Solutions
Biology: Concepts and Investigations
Ch. 3.1 - Why are cells, not atoms, the basic units of life?Ch. 3.1 - How have microscopes advanced the study of cells?Ch. 3.1 - What are the original components of the cell...Ch. 3.1 - Prob. 4MCCh. 3.1 - Which molecules and structures occur in all cells?Ch. 3.1 - Describe adaptations that increase the ratio of...Ch. 3.2 - How do prokaryotic cells differ from eukaryotic...Ch. 3.2 - Prob. 2MCCh. 3.2 - What is the relationship between cells and...Ch. 3.2 - Prob. 4MC
Ch. 3.3 - Prob. 1MCCh. 3.3 - How does the chemical structure of phospholipids...Ch. 3.3 - Where in the cell do phospholipid bilayers occur?Ch. 3.3 - Prob. 4MCCh. 3.3 - Prob. 5MCCh. 3.4 - Prob. 1MCCh. 3.4 - Prob. 2MCCh. 3.4 - What is the function of the nucleus and its...Ch. 3.4 - Prob. 4MCCh. 3.4 - Which organelle houses the reactions that extract...Ch. 3.4 - Prob. 5MCCh. 3.4 - Prob. 7MCCh. 3.5 - Prob. 1MCCh. 3.5 - Prob. 2MCCh. 3.5 - Prob. 3MCCh. 3.6 - Prob. 1MCCh. 3.6 - Prob. 2MCCh. 3.6 - Prob. 3MCCh. 3.6 - Prob. 4MCCh. 3.7 - Prob. 1MCCh. 3.7 - Prob. 2MCCh. 3 - Prob. 1MCQCh. 3 - One property that distinguishes cells in domain...Ch. 3 - Prob. 3MCQCh. 3 - Which of the following organelles are associated...Ch. 3 - Within a single cell, which of the following is...Ch. 3 - Prob. 6MCQCh. 3 - Prob. 7MCQCh. 3 - Prob. 1WIOCh. 3 - List the features that all cells share; then name...Ch. 3 - If a eukaryotic cell is like a house, how is a...Ch. 3 - Prob. 4WIOCh. 3 - Prob. 5WIOCh. 3 - Rank the following in order from smallest to...Ch. 3 - Which cell in figure 3.31 has the highest ratio of...Ch. 3 - What advantages does compartmentalization confer...Ch. 3 - Prob. 9WIOCh. 3 - 10. Emulsifiers are common food additives. A...Ch. 3 - Prob. 11WIOCh. 3 - Prob. 12WIOCh. 3 - Prob. 13WIOCh. 3 - How does the cytoskeleton interact with other...Ch. 3 - Prob. 15WIOCh. 3 - Prob. 16WIOCh. 3 - How might you connect the terms proteins and...Ch. 3 - Add the three main components of the cytoskeleton...Ch. 3 - Prob. 3PITCh. 3 - Prob. 4PITCh. 3 - Adel chloroplast, lysosome, and vacuole to this...Ch. 3 - Prob. 6PIT
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
- 1) The inactivation of Staphylococcus aureus was studied in pomegranate juice heated at 75°- 95°C. The slopes for the inactivation of this bacteria were calculated from the linear lines in semi-log graphical paper. The slope values were presented in Table 1. a) Determine the temperature change needed to inactivate this bacteria by 90%. b) Temperature change to inactivate Bacillus cereus in pomegranate juice by 90% at the same temperature range was 29°F. At 75°-95°C temperature range, which bacteria will be more affected by the temperature changes? Commend on your answer in one sentence Table 1- Slope values for the inactivation of Staphylococcus aureus in pomegranate juice heated at various temperature Temp. (°C) 75 80 85 95 -Slope x 10² (min-¹) 2.222 3.704 5.000 13.158arrow_forwardWhy did the researchers choose one plant mitochondrion and fivebacterial species to include in the comparison matrix?arrow_forwardIn a reproduction of an experiment famously performed by Louis Pasteur, you cultured yeast in the absence of oxygen (anaerobic growth) and measured (1) the rate of cell division, (2) the rate of glucose consumption, and (3) the intracellular ATP:ADP ratio. You then moved the cells to an incubator containing normal atmosphere (i.e., 21% oxygen), completed a second set of measurements, and made the following observations: The rate of cell division increased considerably after the addition of oxygen (aerobic growth) Glucose consumption dropped dramatically after the addition of oxygen Intracellular ATP:ADP ratios increased significantly (from 2:1 in the absence of oxygen to 10:1 in the presence of oxygen) Explain how the mitochondria in the yeast contribute to the dramatic drop in glucose utilization and increase in ATP concentrations in the presence of oxygen.arrow_forward
- Describe the classic experiments of Steward, Gurdon, and Wilmut.arrow_forwardYou got an opportunity to join a professor lab who is working in-vivo model and specifically looking at the dysregulation of mitochondria in liver. He asked you to isolate mitochondria from a Rat liver and placed in an assay medium. Based on the knowledge you gain in this course so far, please answer the following questions: a) Which technique will you use to isolate mitochondria? b) What happens to the pH of the medium when the medium is kept anaerobic? c) What happens when O2-saturated saline is added to the mixture?arrow_forwardThe Bread Mold model used by Beadle and Tatum was selected for which of the following reasons?arrow_forward
- All questions a) What is the hypothesis of Griffith’s experiment? b) Why did mouse No. 3 survived? c) Why did mouse No. 4 died? d) If Griffith had injected a fifth mouse with a combination of heat-killed R strain bacteria and heat-killed S strain bacteria, would the mouse have died? Give your reason.arrow_forwardWhat are bacteria? what is bacterial culture? how to grow bacteria and why? why are there so many bacteria on the keyboard?arrow_forwardWhich of the following is true of the gel electrophoresis shown? A) the power source has not been turned on yet. B) the three wells contained the same DNA molecules. C) well #1 had fewer molecules of DNA than well #2 or #3 D) well #3 had more different sized molecules of DNA than well #1 or #2 Which of the following statements is TRUE about the band of molecules labeled X ( close to where it says positive electrode). A) it contains DNA fragments that are shorter than the ones in any of the other bands. B) it contains fewer DNA molecules than any of the other bands from lane 3. C) it contains more negatively charged particles than any other band on the gel. D) it contains fewer genes than any of the other bands on the gel.arrow_forward
- During the Lederberg and Tatum experiment, theresearchers compared the growth of mutant strains under twoscenarios: mixed strains or unmixed strains. When the unmixedstrains were plated on the experimental growth medium, whywere no colonies observed to grow? When the mixed strainswere plated on the experimental growth medium, 10 colonieswere observed. What was the significance of these colonies?arrow_forwardWhat is the origin of Masseter?arrow_forwardResults from a Kirby Bauer antibiotic assay on a Gram-negative bacterial culture are described as follows: A) the bacterium is resistant to penicillin, an antibiotic that targets synthesis of the peptidoglycan cell wall and B) the bacterium is resistant to tetracycline, an antibiotic that targets the small subunit of the ribosome, inhibiting protein synthesis. Which of the results represents intrinsic resistant and which represents acquired resistants?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning