Bundle For MICR221 EXAM QUESTIONS WITH CERTIFIED ANSWERS

MICR 221 TESTED QUESTIONS WITH ALL REVISED ANSWERS – UPDATED!! What is commensalism - Answer-a symbiotic relationship in which one organism benefits and the other is neither helped nor harmed What is mutualism - Answer-a symbiotic relationship in which both organisms benefit What is pathoge...

MICR221 EXAMINATION QUESTIONS WITH ALL CORRECT ANSWERS AB toxins - Answer-A has toxic enzymatic activity and B binds to receptors on host cells so A can be internalised by endocytosis botulinum toxin - Answer-blocks release of acteylcholine from stimulatory motor neurons so no muscle contractio...

MICR221 EXAM QUESTIONS WITH REVISED ANSWERS Commensal/Mutualistic bacteria of the GI tract - Answer-Lactobacillus, Bacteriodes, Bifidobacterium, Clostridium, Escherichia, Enterococcus Anaerobes in large intestine - Answer-Bacteriodes, Bifidobacterium, and Clostridium Bacteria adapted to stom...

MICR 221 EXAM QUESTIONS WITH ANSWERS ALL REVISED AND UPDATED Pneumonic plague - Answer-lung infection, can spread from human to human. When people cough, tiny droplets move through the air, Plague - Answer-1st use of quarantine, not very useful. killed one third of European population. First ...

MICR221 TESTED QUESTIONS WITH ANSWERS ALL CORRECT what transport system traps substrate through the movement of phosphate through a cascade complex - Answer-phosphotransferase what transport family uses ATP to move substrate in and out of the cell - Answer-ATP binding casette family why can ...

MICR 221 TEST QUESTIONS WITH REVISED ANSWERS what happens in the investment phase - Answer-ATP used to phosphorylate sugar 6C sugar ring broken into two 3C chains What happens in the payoff phase - Answer-oxidations and removal of phosphate produced ATP and NADH Net Products of glycolysis...

MICR221 MIDTERM TEST QUESTIONS WITH ALL ANSWERS VERIFIED Extracellular Polysaccharide - Answer-Capsule! - not every bacteria -often lost in lab - ex. slime found in lungs of CF patients (pseudomonas aerginosa) is due to capsule - this is why antibiotics don't really work - can't get through ...

MICR221 EXAM QUESTIONS WITH CERTIFIED ANSWERS What are the two classes of transport proteins - Answer-B-barrel and a-helicle bundle How do Amphiphatic Transport proteins get their name - Answer-They need to function in hydrophobic conditions (bilipid layer) and have a hydrophilic core for tra...

MICR 221 MIDTERM TEST QUESTIONS WITH ANSWERS ALL UPDATED! What are trace elements? - Answer-very little in media since they are present in sufficient amounts as contaminants of the major things being added to the media, cofactors for key enzymes, copper, cobalt, manganese, zinc, nickel How is th...

MICR221 EXAM QUESTIONS WITH COMPLETE SOLUTIONS Define death of microorganisms - Answer-Loss of ability to multiply under any known conditions Define sterilisation - Answer-Complete removal or destruction of all microorganisms from inanimate objects. Non-selective physical and chemical methods...