Microbiology

Microbiology Midterm Exam

Microbiology Virology Basics Practise Questions Where do all viruses live? ** Answ** Inside the cell (Intracellular pathogens) Viruses can survive _____ but replicate ____ ____ cells ** Answ** Outside; ONLY inside Outside the human cell, viruses are referred to as ** Answ** Virions Different structure types of viruses ** Answ** -Capsid

Irene Gold Microbiology Board Review Questions and Answers 2024 ________________ = true nucleus, organelles. E.g human cells, Protozoa like Giardia and amoeba ** Answ** Eukaryotes ______________ = no true nucleus, no organelles (e.g. No mitochondria) E.g. Bacteria ** Answ** Prokaryotes How are organisms classified/organized? ** Answ** Family and genus How are oraganisms named? ** Answ** genus and species

Microbiology FINAL Review-Jersey College Exam 1 (100% correct and graded A+)

What are Bacteria? -Viruses are small as well but viruses are not independently living -Smallest, most versatile independently living cells known -Visible only with the aid of microscope -Prokaryotes; no membrane bound organelles Nature of Bacteria -In the body, out-number human cells 10:1 *Many are pathogens but do not cause disease -Human genome includes 22,000 protein-coding genes. -Human microbiome contributes ~8 million protein-coding genes -Bacteria essential for our surviv...

What is the difference between selective and differential media? Selective media allows only certain bacteria to grow on the plate and differential media allows you to visualize differences between bacteria based on differences in growth patterns or colonial morphology What was the colonial appearance of Enterobacter aerogenes on the EMB plate? clear with a pigmented center Did Shigella flexneri grow on the SS agar? yes What was the colonial appearance of Escherichia coli grown on the SS a...

Why is PCR a valuable technique? PCR stimulates transcription of genes (DNA). PCR creates large amounts of DNA from minute source quantities. PCR separates DNA from crude mixtures of other biomolecules. PCR harvests small quantities of DNA. PCR creates large amounts of DNA from minute source quantities. Which of the following best describes the purpose of primers in PCR? To provide a template for free nucleotides To separate double-stranded DNA into single strands To provide a struc...

A big reason as to why HIV thus far cannot be cured is that it? a. Is a retrovirus b. Contains a viral envelope c. Contains integrase d. Contains a protease c. contains integrase An infectious particle with an RNA genome and no capsid is known as a... viroid Which of the following is NOT a reason why antiviral agents are hard to develop? a. Because virus genomes are so small, there are relatively few molecules that can be used as drug targets. b. Antiviral agents usually have severe si...

What is the common cause of yeast infections? a. Aspergillus b. Candida albicans c. Histoplasma d. Penicillium b. Candida albicans Which fungus causes the most common life-threatening infection in AIDS patients? a. Aspergillus b. Candida c. Rhizopus d. Pneumocystis d. Pneumocystis All of the following are fungi EXCEPT a. molds. b. yeasts. c. Paramecium. d. Penicillium. c. Paramecium. What term refers to fungal infections deep within the body? a. systemic mycoses b. cu...

Which of the following is true regarding the bacterial plasma membrane only, and not the archaeal plasma membrane? The bacterial plasma membrane only occurs as a bilayer. Choose the true statement(s) about prokaryotic external appendages. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer. Pili allow for adhesion, movement, and aid in gene transfer through conjugation. Flagella allow for motility. The glycocalyx promotes adhe...