BIOL 2053 Lecture Notes - Lecture 2: Phospholipid, Bacilli, Hydrolysis

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cyanreindeer497

19 Sep 2018

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Bacterial cell shape types: cocci always spherical , in chains or oysters can be, bacilli. : rod shaped: vibrio si comma - shaped bacteria, spirit la : spiral shaped i like a type ofpasta. Spirochaetes : spirals that and can are flexible squeeze tighter or looser. + mycelia long filaments called hypae networks arranged in branching. They need their to take in nutrients metabolic activities very fast small size. Their to support really helps with this . Contains rna and creates proteins . complex and the plasma membrane covers. Contains all genetic material sing ) long tail to move through the env stick. Used to onto surfaces it use they don"t for movement. Maintains cell environment at a constant contains transport systems t receptor proteins . Has both hydrophobia i inside ) ends . and hydrophilic f outside : contains membrane proteins : peripheral t attire edge of cell integral central.

Related Questions

21- All living things have 1 of 2 possible cell types. What are these two cell types and how is one type

distinguished from the other. Living organisms can be classified into 3 domains. What are the 3 domains.

22. Be familiar with the terms that describe the shape and arrangement of bacteria.

23. Be familiar with bacterial cell structure and function, including the external components of the cell, the

cell wall, the cell membrane, and internal structures.

24. What distinguishes a Gram-positive bacterium from a Gram-negative bacterium.

25. Microbial growth.

a. What are the physical requirements for growth.

b. What are the chemical requirements for growth.

c. How can bacteria be classified based on their oxygen requirements, temperature preferences, and pH preferences.

d. Bacterial cells divide by a process called binary fission.

e. What are the 4 phases of a typical bacterial growth curve.How does one measure bacterial growth.

26. Metabolism

a. catabolism versus anabolism

b. What are enzymes and how do they work.

c. What is an oxidation and what is a reduction.

d. fermentation versus respiration; What are the stages/steps of respiration/fermentation.

e. aerobic respiration versus anaerobic respiration

f. What is (are) the terminal electron acceptor(s) in fermentation and in aerobic and anaerobic respiration.

harlequingnu888

If someone can please help me, I have answers for this assignment. I just want to make sure they are correct...

1. A 12-year-old male whose family recently emigrated from eastern Europe presents to the emergency room with a fever of 103.5F, a swollen neck, difficulty breathing, and grayish-white membranes in the oropharynx. Cultures were taken from the pharynx and the bacteria were found to be Gram-positive rods with metachromatic granules. The toxin produced by this bacterium has which of the following mechanism of action?

A. Pertussis toxin inhibits the G protein Gai via ADP Ribosylation

B. Overactivates guanylate cyclase

C. Inactivates the 60S ribosomal subunit

D. Inactivates elongation factor 2

E. Cleaves SNARE proteins

2. A 6-year-old male who recently immigrated to the United States from Asia is admitted to the hospital with dyspnea. Physical exam reveals a gray pseudomembrane in the patient's oropharynx along with lymphadenopathy. The patient develops myocarditis and expires on hospital day 5. Which of the following would have prevented this patient's initial infection?

A. Increased CD4+ T cell count

B. Secretory IgA against viral proteins

C. Increased IgM preventing bacterial invasion

D. Circulating IgG against AB exotoxin

E. Improved IgE release from mast cells

3. A 3-year-old male is brought to the ER with a sore throat and fever. Examination of the pharynx reveals a dark, inflammatory exudate. Cysteine-tellurite agar culture produces black, iridescent colonies. Microscopic features of the causal organism most likely include which of the following?

A. Serpentine growth patterns

B. Metachromic granules

C. Lancet-shape

D. Long, branching filaments

E. Kidney-bean shaped rod

4.What treatment would you recommend for the above patients who did not expire?

A. Erythromycin and/or Penicillin

B. Kanamycin

C. Ampicillin

D. Fluid and Bedrest

turquoisekangaroo303

1.Place the following in order from largest to smallest:

1. nitrogenous base

2. chromosome

3. nucleus

4. gene

5. nucleotide

2.Plasmids used for recombinant DNA work typically contain a gene for resistance to some type of antibiotic. The reason for this:

a.Helps you select out bacterial cells that have taken up the plasmid by

incubating them in the presence of the antibiotic

b.Helps make sure your culture doesnât get contaminated with viruses or fungi

c.Helps protect biotechnology lab workers from becoming infected with the bacteria

d.Helps make new types of antibiotic-resistant bacteria that will causewidespread disease and give the biotechnology industry new drugs to manufacture

3.Put these events in the correct sequence:

1-translation

2-mRNA splicing

3-transcription

4.A human protein product requires modifications in the endoplasmic reticulum and Golgi. Which of the following is true?

a.Bacteria will be able to produce this product, since they contain an endoplasmic reticulum and Golgi.

b.Bacteria will not be able to produce this product properly, because they lack an endoplasmic reticulum and Golgi.

c.This product should be produced in a virus, which is the least expensiveeukaryote that can be grown.

d.No cell type can produce this protein, so the company needs to move on to a different product.

BIOL 2053 Lecture Notes - Lecture 2: Phospholipid, Bacilli, Hydrolysis

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