Murein - Study guides, Revision notes & Summaries

Mic 102 Quizzes Questions with Correct Answers What is a function of a prokaryotic cell membrane? a. Lipid synthesis b. Protein secretion c. Respiratory electron transport d. Osmotic barrier e. All of these are true - Answer-E. All of these are true Which of the following cell components would not be found on a gram-positive, circular-shaped bacterium? a. Outer membrane b. Teichoic acids c. S layer d. Flagellum e. Murein - Answer-A. Outer membrane Which structure can give mor...

Mic 102 Quizzes Questions with Correct Answers What is a function of a prokaryotic cell membrane? a. Lipid synthesis b. Protein secretion c. Respiratory electron transport d. Osmotic barrier e. All of these are true - Answer-E. All of these are true Which of the following cell components would not be found on a gram-positive, circular- shaped bacterium? a. Outer membrane b. Teichoic acids c. S layer d. Flagellum e. Murein - Answer-A. Outer membrane Which structure can give more ...

B-lactam resistance - Lactamases - enzymes that cleave beta lactam structure usually between carbon and nitrogen - makes it no longer a structural mimic and transpeptidase keeps cross-linking peptide side chains Antimicrobial Agents - Agents that kill microorganisms or inhibit their growth -cidal agents kill -static agents inhibit growth Household cleaners are disinfectants 14 out of 20 burn patients get pseudomonas infections from stainless steel tub cleaned with a quat.. why? - Quats d...

Select the appropriate type of microscopy to perform for a given specimen and experimental question. CORRECT ANSWER viruses-->nanometers e. coli-->micrometers yeast-->micrometers period (on a page)-->millimeters types of microscopy -light: x1000-x2000 mag can't see in much detail, need to stain to see more -TEM: x500,000 mag (exterior; living) -SEM: x500,000 mag (really small; internal struct; dead) labeling techniques -staining: can clearly see struct, kills the cell -...

2023 AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] Please write clearly in block capitals. Centre number Surname Forename(s) Candidate signature Candidate number I declare this is my own work. AS BIOLOGY Paper 1 Monday 15 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. ...

What are the different types of microscopy and staining and when are they used? CORRECT ANSWER Types of microscopy include: light microscopy- used primarily to get an idea of the form of the bacteria, used in combination with staining to get an idea of Gram positive and Gram negative protein. Green fluorescent is used to observe cell occurrences like binary fission and movement of proteins. Electron microscopy is very detailed at getting an idea of what is occurring inside and outside of the ce...

The length of abacterium such as Escherichia coliis approximately CORRECT ANSWER 1 μm = 0.001 mm Lactobacillusspp. are classified in phylum CORRECT ANSWER Firmicutes According to the endosymbiotic theory CORRECT ANSWER chloroplasts evolved from members of phylum Cyanobacteria ______ identifies what genes are expressed in a community. CORRECT ANSWER Metatranscriptomics The most abundant phyla in the human gut microbiome are CORRECT ANSWER Bacteroidetes and Firmicutes ______ is a c...

What is not a function of a prokaryotic cell membrane? (A) Protein synthesis (B) Protein secretion (C) Respiratory electron transport (D) Osmotic barrier (E) Lipid synthesis correct answers (A) Protein synthesis Which of the following cell components would not be found on a gram-positive, circular shaped bacterium? (A) Murein (B) Teichoic Acids (C) S layer (D) Flagellum (E) Outer Membrane correct answers (E) Outer Membrane Which structure provides resistance to desiccation? ...

Mic 102 Quizzes Questions with Correct Answers What is a function of a prokaryotic cell membrane? a. Lipid synthesis b. Protein secretion c. Respiratory electron transport d. Osmotic barrier e. All of these are true - Answer-E. All of these are true Which of the following cell components would not be found on a gram-positive, circularshaped bacterium? a. Outer membrane b. Teichoic acids c. S layer d. Flagellum e. Murein - Answer-A. Outer membrane Which structure can give more ri...

What is a function of a prokaryotic cell membrane? a. Lipid synthesis b. Protein secretion c. Respiratory electron transport d. Osmotic barrier e. All of these are true correct answers E. All of these are true Which of the following cell components would not be found on a gram-positive, circular-shaped bacterium? a. Outer membrane b. Teichoic acids c. S layer d. Flagellum e. Murein correct answers A. Outer membrane Which structure can give more rigidity to the cell wall? a. Pili...