Ex. If this is the growth curve of an E. coli culture at the sub-optimal growth temperature of 30°C, predict the growthcurve of an E. coli culture grown at the optimal growthtemperature of 37°C (all other conditions the same). Explain.Log (cells/ml)TimeEx. If this is the growth curve of E. coli growing in minimalmedium with 20 mM glucose (the limiting nutrient), predictthe growth curve for E. coli grown in minimal medium with40 mM glucose (all other conditions the same). Explain.Log (cells/ml)Time 3. The cell membrane (abbreviated CM due to space constraints) and cytoplasm of part of the indicated types ofbacterial cells is shown below. Sketch and label the following structures (if present) on the appropriate cellmembrane(s): cell wall, outer membrane, periplasm, LPS, teichoic acid, mycolic acid, porin. (Hint: refer to theclose-up, cross-section Cell Envelope diagrams in the Cells Powerpoint or reading.)CMCytoplasmGram negativeCMCytoplasmGram positiveCMCytoplasmAcid-fast

The microbial growth curve also known as the bacterial growth curve is used to describe the…

Ex. If this is the growth curve of an E. coli culture at the sub- optimal growth temperature of 30°C, predict the growth curve of an E. coli culture grown at the optimal growth temperature of 37°C (all other conditions the same). Explain. Log (cells/ml) Time Ex. If this is the growth curve of E. coli growing in minimal medium with 20 mM glucose (the limiting nutrient), predict the growth curve for E. coli grown in minimal medium with 40 mM glucose (all other conditions the same). Explain. Log (cells/ml) Time

Ex. If this is the growth curve of an E. coli culture at the sub- optimal growth temperature of 30°C, predict the growth curve of an E. coli culture grown at the optimal growth temperature of 37°C (all other conditions the same). Explain. Log (cells/ml) Time Ex. If this is the growth curve of E. coli growing in minimal medium with 20 mM glucose (the limiting nutrient), predict the growth curve for E. coli grown in minimal medium with 40 mM glucose (all other conditions the same). Explain. Log (cells/ml) Time

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter22: Prokaryotes: Bacteria And Archaea

Section: Chapter Questions

Problem 2VCQ: Figure 22.16 Which of the following statements is true? Gram-positive bacteria have a single cell...

See similar textbooks

Similar questions

Describe the cross - section side view of a Gram - negative cell . Clearly state where the following would be located or write the letters in order of appearance from the outside to the inside . If any of these structures are not present , make sure to leave them out . A ) peptidoglycan ; ( B ) periplasm ; ( C ) porin ; ( D ) LPS ; ( E ) teichoic acids ; ( F ) plasma membrane : ( G ) outer membrane : ( H ) nucleoid
3. Туре of Cell: Explanation:
1-A-What function do cilia and flagella share? B-For each cell type below, state A) a noteworthy structural characteristic you observed in the microscope and B) the function that structure provides/allows Red blood cell A) ______________________________________________________________ B) ______________________________________________________________ lining cell from airway A) _______________________________________________________________ B) _______________________________________________________________ skeletal muscle cell Please answer asap
I am doing my microbiology homework and I need help with these questions: 1) List the structures ALL bacteria possess. 2) Identify three structures SOME but not all bacteria possess. 5) Describe the structure and function of three different structures found outside of the bacterial cytoplasmic membrane. 6) Differentiate between the two main types of bacterial envelope structures. 7) Why are Gram-positive cell walls stronger than Gram-negative cell walls? 8) Name a substance in the envelope of SOME bacteria that can cause severe symptoms in humans. 9) Describe the causes of sporogenesis and germination 10) Compare and contrast the major features of archaea, bacteria and eukaryotes by completing the table below. Characteristic Bacteria Archaea Eukarya Chromosome Type of Ribosomes Protein Synthesis Similar to Eukarya Sterols In Membrane Membrane-bound Organelles Peptidoglycan in Cell wall
-------- 1. Prokaryotic organisms like bacteria use the flagella for movement. What is the basic structure of a flagellum 2. Motile bacteria have different numbers and arrangements of flagella. What are they? Cite their differences.
Figure 22.16 Which of the following statements is true? Gram-positive bacteria have a single cell wall anchored to the cell membrane by lipoteichoic acid. Pori ns allow entry of substances into both Gram-positive and Gram-negative bacteria. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. Gram-negative bacteria have a cell wall made of peptidoglycan, whereas Gram positive bacteria have a cell wall made of lipoteichoic acid.
Staphylococcus aureus bacteria can cause various diseases, and many strains exhibit antibiotic resistance. After exposure and colonization, these bacteria can produce hyaluronidase, various exotoxins, and a capsule. Some of the diseases they can cause are: Pneumonia Bone/joint infection Cutaneous soft-tissue infection Prepare a simple diagram that shows how staphylococcal infection can occur in these different cell types. Label key structures in your diagram. Add a brief caption that identifies three microbial mechanisms of pathogenicity pertaining to staphylococcal disease.
Explain the following terms lysozyme (bacteria), cellulase (plant cells), chitinase (fungus).
1. What is host resistance in bacteria? 2. What is gram staining technique? 3. Difference between lysosomes and peroxisomes. 4. What are microtubules in cell? 5. Define endoplasmic reticulum, mitochondria, cytoskeleton, ribosomes, vesicles, golgi apparatus, chloroplasts, vacuole, pili and fimbriae, transcription, plasma membrane, cytoplasm, DNA 6. Meaning of primitive cells.
Find and label the cell wall, cytoplasm, vacuole bounded by tonoplast, nucleus (if visible) of this plasmolyzed cell.
Gram-negative bacteria are surrounded by two membrane bilayers separated by a space termed the periplasm. The periplasm is a multipurpose compartment separate from the cytoplasm. The periplasm has a distinct oxidizing environment that allow certain key protein structural features to be formed. Can you identify an amino acid(s) that would be affected by this oxidizing environment? How would it be affected, and what structural features would be sensitive to this environment? Can you discuss the implications of this from a standpoint of recombinant protein expression?
14. Explain why Mycoplasma and Mycobacterium are atypical cells and diseases caused by each 13.List several antibiotics and a natural protein that specifically targets peptidoglycan; define MRSA* 16.Describe the structure and function of the bacterial membrane and why it is selective permeability