- Joined
- Dec 13, 2001
- Messages
- 15,139
- Reaction score
- 212
Answer then ask a question.
Question 1:
What type of solvent would be best for favoring Sn1?
Question 1:
What type of solvent would be best for favoring Sn1?
Nuel said:I thought escape velocity was given as v = sqrt(2gR). So I guess it should be at at the equator. If I am wrong someone should correct this.
LUBDUBB said:Damnn good question Nuel, let's see if i can remember this stuff...Okay..mitochondrial uncouplers, you're talking about something like DNP..which can go right through the bilayer of the mitochondria. When it goes right through it takes protons with it into the matrix, so it messes up the proton gradient. No proton gradient --> ATP synthase are deactivated. Exaclty how that works, I really dont' know, but I'm going to go with choice A. (Although it could be choice B.) You got me on this one.
jhk43 said:v=sqrt(2gR) has two variables.
--
i think the equation to use is:
v=sqrt(2GM/R) G=gravitational constant.
keep in mind g is not constant. (is g greater at equator or at north pole?)
Nuel said:Certain antimetabolite drugs can cause people to lose weight by uncoupling the chemiosmotic machinery thus making the mitochondrial lipid bilayer:
A. permeable to H+ because ATP synthase is deactivated in the
mitochondrial matrix by such changes and no ATP is produced.
B. permeable to H+ because the mitochondrial catalytic sites of ATP synthase
remain active but cannot produce ATP.
C. impermeable to H+ because ATP synthase is deactivated in the
mitochondrial matrix by such changes and no ATP is produced
D. impermeable to H+ because the mitochondrial catalytic sites of ATP
synthase remains active but cannot produce ATP.
jhk43 said:this is a tuffy since ATP should be produced alwasy rite?
anyways, chemioosmtic probably means H+ gradient is null, making it permeable to H+. cross out C/D. theres nothing that makes me feel that ATP synthase is deactivated, so i'll choose B. the sites are still workable, but they dont pass any H+ thru them, so no ATP is produced.
B
jhk43 said:one question i have is the relationship btw. waves's velocity and frequency.
v=sqrt(Tension/density)
v=wavelength * frequency
whats the difference?
Cerberus said:how bout a verbal one...
Which statement best sums the authors feelings on the MCAT?
I. Doleful acceptance
II. Overwhelming apprehension
III Love and admiration for the aamc
A) I only
B) II only
C)I&II only
D) I,II, and III
Nuel said:progesterone?
I think it is testosterone, no Y chromosome in female *edit*
Cerberus said:Men produce estrogen in small amounts.
My guess is either prolactin or oxytocin
jhk43 said:anyone want to start a AIM chat room thats up 24/7? have people come/go as they please...ask questions, etc...
jhk43 said:anyone want to start a AIM chat room thats up 24/7? have people come/go as they please...ask questions, etc...
jhk43 said:the room name is "MCATSlayerz"
Hopefully it'll help us out
LUBDUBB said:Okay prolactin and oxytocin are still produced in males but their roles are still unclear.
HCG produced only in females (from blastocyst and placenta).
I admit it was a cheap shot.
Cerberus said:2+2=???
(this is a confidence booster)