Flow-Down Gradients

Question 1

movement of a substance from one point in
a system (A) to another point in the system (B)

Answer 1

flow

Question 2

Flow is measured by (2)

Answer 2

1. amount of substance (volume,
   moles, charge)
2. that moves over time (seconds, minutes)

Question 4

F= (P1-P2) 𝝅𝒓4/8ul

Answer 4

Poiseuille’s law

Question 5

Poiseuille’s law - flow increased when ____ increases

Answer 5

Hyrostatic pressure and radius

Question 6

Poiseuille’s law - flow decreases when ____ increases

Answer 6

viscosity and length

Question 7

____ is most important determinant of resistance in Poiseuille’s law

Answer 7

radius

Question 8

Diffusion is

Answer 8

Movement of a solute or a gas in a gas mixture from an area of high concentration to low concentration
- Usually this movement occurs across a barrier composed of a membrane(s)

Question 9

what law quantifies how the rate of diffusion is affected by various parameters:

Answer 9

Fick’s law

Question 10

𝑭 = k x a(Ca-Cb)/t

Answer 10

Fick’s law

Question 11

Fick’s law increases when _____ increases

Answer 11

concentration gradient, surface area and k (constant)

Question 12

Fick’s law decreases when _____ decreases

Answer 12

thickness of membrane

Question 13

I = V/R

Answer 13

Ohm’s Law

Question 14

flux = [(pressure forces) - (Diffusion Forces)]/Resistance to H2O flux

Answer 14

Starling forces - simplified

Question 15

𝐅𝐥𝐮𝐱 = 𝐋𝐩 [(𝐏𝐜𝐚𝐩 − 𝐏𝐈𝐒𝐅) − 𝛔 (𝛑𝐜𝐚𝐩 − 𝛑𝐈𝐒)]

Answer 15

Starling forces

Question 16

flow along a defined membrane surface area

Answer 16

flux