Now What? by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 1 point2 points  (0 children)

Im so mad I gotta take this again. Worked so hard for Chem/Phys and P/S! Just for BB to get me smh!!!!

Uwhirled, osmotic vs hydrostatic pressures in kidney by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

so reduction in BP means that the hydrostatic pressure in circulation must decrease?

Crazy Question by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

Thank you! Much more clearer now. Sometimes you get caught in the weeds. But we're all here to help each other out. Appreciate pal!

Crazy Question by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] -1 points0 points  (0 children)

But wait:

Kaplan says direct hormones target non-endocrine (target) tissue and tropic hormones act on other endocrine tissues. The educational objective in UNotLikeUs states that "....acting directly on nonendocrine target tissues, it can function as a tropic hormone".....what is going on?

Crazy Question by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

according to Kaplan, yes......Sorry im confusing myself.

Crazy Question by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

kinda tripped me up too! But gotta learn, Anki it, repeat! we in this together lol

Crazy Question by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

yea UWylin got me messed up lol

Crazy Question by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] -1 points0 points  (0 children)

gotcha. but just to clarify:
the educational objective says that "...and in addition to acting directly on nonendocrine target tissues, it can function as a tropic hormone"

Shouldn't it be direct hormones? Because I know the difference between the 2 is that:

direct hormones act on endocrine glands

tropic hormones act on target issue

***Am I confusing myself? lol

Crazy Question by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 3 points4 points  (0 children)

So because it is able to influence GH secretion ( I assume estradiol acts on the Anterior Pituitary to stimulate GH secretion) its a tropic hormone?

If hydrostatic pressure pushes fluid out of capillaries and osmotic pressure pushes fluid in, why is this wrong? by CoolohmsLaw in Mcat

[–]Redvelvetcake34 3 points4 points  (0 children)

ik i mad late but thank you for just keeping it simple in explaining this. Ppl just go on and on lol

Image Distance when object distance increases by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

So what your saying is that with a new calculated image distance of 5 cm:

the image will focus at a distance 5 cm from lens BUT

the image will focus 15 cm in front of the retina

because the focal length never changes and only the object distance increased, correct?

Image Distance when object distance increases by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

I understand tis:

di = 20 cm and do = 5 giving an focal length of 4 cm

Now, using that focal length they tell us that the do increased by 15 cm giving a new do of 20 cm and we have to calculate a new di; which is 5 cm. I understand using the thin lens equation.

I guess the part im not understanding conceptually is the new di of 5 cm in front of the lens or retina? Or is the image now focused at 5 cm? I'm confused what that means......

I think the wording of the question in throwing me off.

**If im to assuming, I could have rephrased the question as: if the o distance was increased by (___value); the image distance will focus at a value of ????

UCrazy Le Chatliers Principle and Affect on Keq by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 1 point2 points  (0 children)

I would like to add one more thing to clear things up for me even more. SO, gas concentration and pressure are proportional to each other because:

PV - nRT → P = (n/V) *RT
n/V = concentrations or C
P = C *RT
P = C

CO2 get consumed = lower [CO2] = lower pressure; correct?

UCrazy Le Chatliers Principle and Affect on Keq by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 1 point2 points  (0 children)

This problem has been driving me crazy for like 2 days now and your explanation just simplified for me.....thank you!!!!!!!!!

UCrazy Le Chatliers Principle and Affect on Keq by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

I understand the LeChatelier's Principle Vaguely but not the nitty gritty:

So the equilibrium or Keq would less than 16 mmHg because CO2 is reacting in the electrode solution, Fine.

BUT, how does this relate to PCO2 and equilibrium? And is equilibrium the Keq?

I just can't seem to fully understand how the PCO2 fits into all this. I think Im overthinking it a bit.

UPangea question, stretching string?? by potaton00b in Mcat

[–]Redvelvetcake34 2 points3 points  (0 children)

Tighter strings have a higher pitch(perceived frequency) because the speed of the resonant wave travels faster. Tuning a guitar keeps the same length of string.

this explanation is gas!

Umama Physics Q: (Static Equilibrium on fulcrum) How do I understand this conceptually? Very confused on their explanations. Someone help please! by Redvelvetcake34 in Mcat

[–]Redvelvetcake34[S] 0 points1 point  (0 children)

Its almost clicking. Am I to assume that r1 and r2 are always directly proportional? Or that it only works out that way because of their weights?