Biod 171 m - Study guides, Class notes & Summaries

What are the requirements of a fastidious microbe? A fastidious microbe is an organism with complex growth requirements and will not grow without then. Enriched medias thus contain these specific and essential nutrients required for the growth of a particular subset of microorganisms. What is the name of the process of spreading a bacterial culture onto a petri dish? Plating. Plating microbes can be done using a sterile loop, a sterile swab, or a sterilized wire loop. Each device is simpl...

What is the viral envelope, and what does the presence (or absence) of it tell you about the type of virus? The viral envelope surrounds the viral capsid and serves as an additional barrier to the external environment. The majority of animal viruses are enveloped where as plant or bacteria infecting viruses are not. You go to visit a friend who has chickenpox. While visiting what are 2 things you will be sure to avoid so that you don't also become infected? You should keep a distance esp...

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 sets in and the child is taken to the hospital. Botulism is suspected, but what form? Explain your answer. Food-borne botulism. The child is too old (> 6 months) to be considered for infant botulism and wounds were not present. The green beans were likely improperly canned and under the low- acidic, anaerobic conditio...

Define the concept of universal precautions (short answer) Universal precautions means any and all samples, whether known or unknown, are to be treated as potentially hazardous (or pathogenic) materials 2. List at lease 3 observations a researcher would be sure to note while assessing and unknown microbial sample (short answer) Need to note: 1. Size and shape 2. Any observable motility 3. Gram status (positive or negative) 3. While observing an unknown sample of limited amounts...

Microorganisms classified as _________ obtain most of their energy by converting light energy into chemical energy. Plantae Which of the following microorganisms are considered to be Eukarya? Select all that apply. Animalia Plantae Fungi Protista All of them The plasma membrane (select all that are true): A. Restricts movement of materials in and out of the cell B. Is often a triple layer comprised of lipids C. Prevents essential nutrients from escaping D. Contains hydropho...

What is different about phase contrast microscopy compared to brightfield? You are able to visualize things that would otherwise be invisible; cells are highly distinguishable True or False: A cell that is adherent, flat (thin), and unstained is easily identified using bright field microscopy False: Adherent, flat cells are almost invisible due to the limits on both resolution and contrast True or False: The distinguishing characteristic of Gram-Negative bacteria is the presence of LPS...

BIOD 171 / BIOD171 Microbiology Lab 4 Exam (Latest 2023 / 2024) Q & A Portage Learning GRADEXAM

BIOD 171 MODULE 2 EXAM PORTAGE LEARNING MICROBIO COMPLETE QUESTIONS AND ANSWERS