Skip to content
CramShare
FreePractice exam

Micro Exam 5 Portage Learning Questions with 100% Correct Answers

HEAL100 Health Care — exam and revision material · Other

Updated today

Health Care exam material, 5 pages. Originally published on StudyMerit.

Pages
5
Academic year
2025/2026
Language
English

What’s included

Preview 2 of 5 pages

See the first 2 pages exactly as they appear in the document.

Read page 1 as text

Portage Microbiology Exam #5 With 100% Correct Answers 2023 Define the concept of universal precautions (short answer) - Correct Answer - Universal precautions means any and all samples, whether known or unknown, are to be treated as potentially hazardous (or pathogenic) materials List at lease 3 observations a researcher would be sure to note while assessing and unknown microbial sample (short answer) - Correct Answer - Need to note: 1. Size and shape 2. Any observable motility 3. Gram status (positive or negative) While observing an unknown sample of limited amounts, a researcher must determine the following observations: 1) the presence of any motility and 2) its Gram status using the same sample - the liquid sample cannot be divided. Which would you dete rmine first and why? (short answer) - Correct Answer - You must determine motility before determining Gram status. Motility requires a wet mount, while gram staining requires heat fixing the sample. If one were to begin with the gram stain, the heat fixation process would kill the organism, making any observations regarding motility impossible. The correct approach would be to place the liquid culture on a glass slide and determine its motility status. Next, the same liquid culture can be heat fixed and gram stained. A facultative anaerobe is a microorganism capable of growth under what conditions? (short answer) - Correct Answer - A facultative anaerobe is capable of growth under aerobic (with oxygen) and anaerobic (without oxygen) conditions True or False: T he Lancefield groups are used to subdivide antigenic groups of alpha - hemolytic Streptococcus - Correct Answer - False. The Lancefield groups are used to subdivide beta - hemolytic strep The distinctions for Lancefield subgroups lie in its: (select all that ap ply) A. Catalase activity B. Carbohydrate composition of antigens C. Hemolytic activity D. All of the above - Correct Answer - B. Carbohydrate composition of antigens Rheumatic fever displays _____ hemolytic activity and occurs when _____ if left untreated - Correct Answer - Beta: strep. Pharyngitis True or False: Under most circumstances, staphylococcus can be found in ~80% of human population where it remains non - symptomatic - Correct Answer - False. Staphylococcus in only found (non - symptomatic) in ~30% of t he human population

Read page 2 as text

Define commensal bacteria (short answer) (know term and definition first) - Correct Answer - The bacterium neither harms nor benefits from the host from which it obtains nutrients How can staphylococcus be differentially tested? (short answer) - Correct Answer - Staphylococcus species are capable of growth in the presence of bile salts Symptoms of folliculitis - Correct Answer - Pus - filled lesions on skin or hair Symptoms of scalded - skin syndrome - Correct Answer - Ruptured - pustules; treate d with penicilin Symptoms of Impetigo - Correct Answer - Childhood skin disease near mouth/nose Symptoms of conjuctivitis - Correct Answer - Infections of thin, transparent scieral tissue Symptoms of ophthalmia neonatorum - Correct Answer - Infection occurs at time of birth True or False: the causative agent of conjunctivitis can be either bacterial or viral - Correct Answer - True. There are bacterial (staph) and viral forms of conjunctivitis, both resulting in the inflammation of the conjunctiva and 'pink ey e' True or False: Tuberculosis is best identified by a gram stain - Correct Answer - False. Mycobacterium show poor Gram staining and show be screened via an acid - fast stain True or False: You can become infected with TB simply by sharing a drink with some one who is currently infected with TB - Correct Answer - False. As per the CDC guidelines, simply shaking someone's hand, sharing a drink, or even kissing someone cannot spread TB Identify the disease based on the following (select all that apply): It is a small, acid - fast rod usually remaining asymptomatic for up to 20 years. It affects the skin, nerves, upper respiratory tract and eyes of infected individuals A. Tuberculosis B. Leprosy C. Scalded - skin syndrome D. Hansen's disease E. Bacterial conjunctiviti s - Correct Answer - B & D (Hansen's disease is another name for leprosy) True or False: Only directly ingesting the pre - formed clostridium toxin (neither the bacteria nor its spores) will cause disease in adults - Correct Answer - True While visiting his grandparents, a 10 - year old child has green beans for dinner that were harvested from his grandparents' garden and canned the previous year. Severe illness

That’s the free preview

You’ve read 2 of 5 pages. The whole document is yours with a free account, and it stays in your library.

Others on this course also opened

Free

With a free account