glycolic acid collagen
Which of the statements about cmpounds or durgs associated with the skin is correct?
I need help with my bio homework. Here are the choices listed for my question.
1) vaseline (petroleum jelly) causes an increase in thickness of dermis
2) Retin A initiates cell division in the epidermis and increess collagen production
3) papaya digest the innermost epidermal layer(s) and results in cell division
4) glycolic acid removes the outer layers of the dermis and initiates cell division when used at a concentration of 5%
5) Ethocyn initates cell division in teh epidermis of the skin
I picked #4 but I wasn’t sure. Can any bio majors help me please?
Hey I spent forever trying to figure this one out too. Its a tricky one, you really have to pay attention to the wording. After I found the answer it was really obvious that #4 wasnt the correct answer because the dermis is the 2nd layer of the skin, its not included in the outer layers. The outer layer is the epidermis which consists of the stratum corneum and some other layers, Im not sure what, maybe the stratum lucidum too? I’m not too sure but anyways the answer is Ethocyn causes secretion of elastin in the dermis of the skin. (The elastin fibers are even found in the papillary dermis of the skin, so theres another clue plus a little extra info in case you didnt know 
Glycolic acid would either be used in concentrations of 20-80% by a dermatologist or in at home kits in concentrations of 10%. Glycolic acid also reacts with the upper layer of the epidermis. So I just wanted to let you know cuz when I saw your posting I thought Dr. Bizzoco found this question online and I figured it would have the answer. But thats the answer. Hope it helps! Do you by chance know the answers to these questions?
Its #5 on the final exam for fall 2002:
Which of the following minerals does not participate as a required cofactor in either of the 2 free radical deactivator enzymes?
a. magnesium
b. copper
c. selenium
d. manganese
e. zinc
and then
#10 from the same final exam:
The video shown in class before Thanksgiving recess was hosted by:
a. Mark Plotkin
b. Norman Myers
c. E.O. Wilson
d. Norman Farnsworth
e. Richard Schultes
#11 for fall 2002 final-
The second population and cultural group shown in the video before thanksgiving recess was non indian. This 2nd non indian group was native to?
a. Indonesia
b.Suriname (northeast Amazon)
c. Acre (west Amazon)
d. Puerto Rico
e. Africa
And then finally-
#13 for final fall 2002-
The video host proposes saving rainforest indian knowledge about plants and their traditional medicinal use by:
a. writing books that will train western scientists in indian methods.
b. chemically analyzing local plants to discover active ingredients
c. adapting shamanistic plants and rituals to western medicinal ractice.
d. funding shaman and apprentice activities with a stipend.
e. none of the above.
I watched the movie too in class and I can’t remember any of that stuff. And all my notes about the video had nothing to do with those questions. Nuts! And I dont want to have to watch it again, its so boring!
Ole Henriksen 3 Little Wonders Skin Care Kit – Item: 244-044
