What is a lawn of bacteria?     an uneven layer of bacteria covering an entire surface     an uneven layer of bacteria covering only part of a surface     a uniform, even layer of bacteria covering an entire surface     a uniform, even layer of bacteria covering part of a surface

Microbe that causes Disease Environment in which the microbe thrives How to break the environmental chain and control the spread of the disease Salmonella - bacterium that causes salmonellosis Intestines of people and animals- lives in raw eggs poultry,and meat   Borrelia burgdorferi-bacterium that causes Lyme disease Lives in deer ticks   Group A Streptococcus- bacterium that causes '' strep'' infections Lives in the mucus from the nose or throat of an infected person   Giardia- protozoan that causes giardiasis Lives in feces of infected people and animals. Spread by contact with contaminnated water.   Rabies virus Lives in the saliva of infected animals.Spread when an infected animal bites another animal or person.   Here is table of Disease Causing Microbes . What ways you can think to control the spread the disease ?

Which of the following are ways in which forming a biofilm can make a bacterial infection more difficult to fight off or treat? Choose all that apply. Bacteria in biofilms can cause the immune system to attack human cells Bacteria in biofilms can have increased antibiotic resistance Bacteria in biofilms can no longer move Bacteria in biofilms are difficult for white blood cells to engulf

Your right-handed TA has pressed her hands onto agar plates.  There are four plates total--left hand palm, left hand top, right hand palm, right hand top.  They are incubated for growth. Which one of the four plates would you expect to contain the most diverse bacteria?  Why? What factors contribute to differences you might see between the plates?   Which two plates would you expect to be the most similar to each other?  Why?

Can all bacteria be cultured? Why/why not.

Which of the following would be most likely to help a microbe survive human stomach acid to cause an infection in the intestines? O Peptidoglycan cell walls Endospores Capsules Pili

You are working for the CDC studying outbreaks of foodborne infectious disease. Your latest case is an incidence of food poisoning in a fast food restaurant. 5 people have been hospitalized for food poisoning, so you are working with that hospital to identify the source of the outbreak. Hospital clinicians have taken samples from each of the 5 patients for culturing. Each bacterial culture grew one likely microbe, each labelled P1, P2, P3, P4, and P5. All 5 isolates appear to have the same colony morphology on the plates, and all appear to be Gram-negative rods 1 micron wide and 3 microns long under the microscope. In addition, all 5 isolates appear to perform the same on an API 20E test strip that tests bacteria for 20 biochemical abilities. No other testing has been done yet. How would you best describe your set of isolates at this moment? O Each isolate is the same strain, of a different species O Each isolate is a different strain, of different species O Each isolate is a different…

A is a sticky layer of polysaccharide or protein surrounding a bacterial cell, for the purpose of adhesion to a surface or to prevent dehydration. capsule slime layer peptidoglycan layer more than one of the above

In order to assimilate nitrogen or sulfur, A microbe must first convert it into an oxidized form A microbe must first convert it into a reduced form A microbe must first fix it from a gaseous form A microbe must first neutralize it

What is the proper term to describe the shape of the bacteria in this picture? Cocci Bacillus O Vibrio Spirillum Pleomorphic