Medicines of Tomorrow

Question 1

Examples of good bacteria?

Answer 1

E. Coli
Lactobacillus

Question 2

Difference between gram-positive and gram-negative?

Answer 2

Gram-positive have no outer lipid membrane and a thick peptidoglycan layer. Stain purple
Gram-negative have an outer membrane and a thinner peptidoglycan layer. Stain red

Question 3

Three reasons bacteria are essential to us?

Answer 3

Protect us from pathogens on skin
Help alert immune response
Break down food in digestive system

Question 4

What is the Therapeutic index?

Answer 4

A measurement on the relative safety of a drug. A ratio between the therapeutic effect and toxic dose

Question 5

What is the Kirby-Bauer disk diffusion test?

Answer 5

A susceptibility test to measure the sensitivity of bacteria to an antibiotic by determining the zone of inhibition on a growth media

Question 6

Why would you add an acidic compound to do a liquid-liquid extraction?

Answer 6

To protonate a base, making it move into the aqueous layer

Question 7

Why would you add a basic compound to a liquid-liquid extraction?

Answer 7

To deprotonate an acid and make it move into the aqueous layer

Question 8

1-octanol, polar or non-polar?

CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-OH

Answer 8

Non-polar

Polar end not large enough to counteract non-polar end

Question 9

Chemical shift value 3 - 5?

Answer 9

Halogens

Question 10

Chemical shift value 7?

Answer 10

Aromatics

Question 11

Chemical shift value 9 - 12?

Answer 11

Carboxyl or Aldehydes