#1 A denatured protein is? A- product of mitochondria B- mutant, unnatural prote

Question

#1 A denatured protein is?

A- product of mitochondria

B- mutant, unnatural protein

C- changed in 3D shape and functional abilities

D- confused ribosome

#2 Hand sanitizers are often effective in a inactivation of influenza viruses. What would be the explanation for this?

A- the alcohol in the hand sanitizer denatures the nucleic acid inside the virus.

B- hand sanitizer have enough alcohol in them to dissolve the membrane surrounding the virus. This results in the inactivation of the virus.

C- the ethanol in the hand sanitizer causes the capsid protein to mutate

D- the alcohol in the hand sanitizer gets the virus so drunk it cannot infect a cell

#3 Nosocomial infections are acquired ____

A- from farm animals

B- in a hospital

C- in schools

D- at home

E- by credit card

#4 An antibiotic that is effective against strep throat ( caused by the gram-positive streptococcus pyogenes) and the plague (caused by the gram negative Yersinia pestis) would be considered to be:

A- wonder drug

B- broad spectrum antibiotic

C- a broad spectrum antifungal compound

D- a narrow spectrum anti fungal compound

#5 Light of ultraviolet wavelengths may cause you to develop tanned skin, but also,

A- causes decreased blood pressure

B- denatures the proteins of the bacteria on your skin

C- causes bacteria on the skin to rapidly expand their populations

D- damages your dna, as well that of microbes, potentially causing lethal mutations

E- causes a rapid expansion of viruses on skin cells.

#6 What instrument (piece of equipment) is used to sterilize things in a hospital and by what method is it killing things?

A- an inceration oven uses intense heat to sterilize things

B- an autoclave uses steam and pressure to sterilize things

C- a drying oven uses low heat for long periods of time to sterilize things

D- an autoclave uses poisonous gases to sterilize things

Explanation / Answer

1-C) changed in 3D shape and functional abilities.

A is wrong because product of mitochondria is mitochondrial protein not denatured protein.

B is wrong because mutant and unnatural proteins are not denatured proteins

D is wrong because it is irrelevant.

2- B) hand sanitizer have enough alcohol in them to dissolve the membrane surrounding the virus, this results in inactivation of virus.

A is wrong because alcohol do not denatured the nucleic acid.

C is wrong because alcohol is not protease so it can't harm capsid protein.

D is wrong because it is irrelevant.

3-B) in a hospital.

Nosocomial infections are those infections that are acquired or gained from the hospital.

4-B) broad spectrum antibiotic

Narrow spectrum antibiotic work for only a family of fungus and here in question gram positive and gram. Negative both are affected so this is an example of the broad spectrum antibiotic.

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