Describe methods that a cell may use to adapt to heavy metal contaminated sites. Define halophile. What is a compatible solute? What are they used for? Describe the industrial uses of Dunaliella? Describe what issues cell harvesting presents on an industrial scale. Explain what stress proteins are and how they are related to the ability of cells to live in extreme environments.

Describe the properties that enhance the resistance of endospores to the processes that usually kill the vegetative cell.

Is  Bacillus cereus negative or positive for growing in high salt concentrations?

What are the answers to the following?

Describe the colony morphology if Neisseria Gonorrhoeae if it is grown in agar plates in the laboratory

Q 1 a) The bacterial slime layer is generally made of polysaccharides (called glycocalyx) and might be irregular over the surface of cells. Whereas capsules have a unique proteinaceous structure and are uniform over the cell.  True  False b) Which of the following describe the reason we use differential media  Allows certain microbes to grow Brings out visible differences among microorganisms based on their specific functions We use this media when we don't want some bacteria to grow in our plates None of the above is correct c) Only a minority of all microorganisms are pathogenic or cause food spoilage True False d) In an agar plate, each -----------   represents a --------------- bin the original sample. Cell, Colony Colony, Cell Cell, Generation Hour, Generation time

If the generation time of Bacillus cereus is 28 minutes, how many cells of B. cereus will there be after an 90 minutes?

Pseudomonas aeruginosa might contribute to denitrification under which conditions? In an anaerobic environment with no carbon/energy source In an anaerobic environment with a carbon/energy source In an aerobic environment with a carbon/energy source In an aerobic environment with no carbon/energy source

Which of the following types of antimicrobial drugs make microbes more susceptible to osmotic pressure? 1) drugs that inhibit nucleic acid synthesis O 2) drugs that inhibit metabolic pathways 3) drugs that inhibit cell wall synthesis 4) drugs that block a pathogen's recognition of its host 5) drugs that inhibit protein synthesis

Microaerophiles A) O do not require oxygen for growth B) O are the same as facultative anaerobes C) O have the same oxygen reguirements as aerotolerant anaerobes D) O completely lack enzymes protecting them from the damaging effects of oxygen. E O None of the above are correct