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GSU / Biomed Engr/Joint / BIO 1104 / What is the meaning of bulk flow in biology?

What is the meaning of bulk flow in biology?

What is the meaning of bulk flow in biology?

Description

School: Georgia State University
Department: Biomed Engr/Joint
Course: Introductory Biology II
Professor: Rebecca chapman
Term: Spring 2017
Tags: BIOL1104K, Biology, GSU, and biologyii
Cost: 25
Name: BIOL1104K Week #2 Lecture Notes
Description: Here are the lecture notes for week #2. :0)
Uploaded: 01/26/2017
4 Pages 33 Views 1 Unlocks
Reviews


1118117 Molecular Movement: A Bulk Flow blood flow; air into lings


What is the meaning of bulk flow in biology?



Driving force is pressure gradient or u - Change FER-By (fressure gradient)

inversely related to resistance where flow is directly proportional to pressure change a inverselis proportional to resistance. Good for mailing molecules


What is the meaning of diffusion in biology?



long distances - @ Diffusion = qos exchange at alveoli movement of molecules due to randon molecular motion, ( surface area to volume) If you want to learn more check out Why did the major european powers try to maintain a balance of power?

Driving force is concentration gradient Good for moving ndecubs short distances

F = KJALG-a higher concentration -


What is the meaning of mediated transport in biology?



d (distance to lover concentration Frate of flux goes down as distance ** (3) Mediated Transport - Carcera polas Don't forget about the age old question of What are the three ways to test a moral argument?

molecules glucose, amino acids, properties of ligand binding specificity,

Frits Saturation competition & mdecules that cannot pass the cell Don't forget about the age old question of What is the process of emerging?
If you want to learn more check out How these molecules (protein) influence?

Suo cture

7

Fund

membran

assistance for travel in lout of the cell (A) Facilitated Diffusion:

alongside Ex. → Glucose transport (concentration grodad same affinity of carrier sites on both sides of membrane, therefore Do directionality a movement is due to concentration Gradiente Don't forget about the age old question of What are the high advertising and promotion costs?

* Cannot move against concentration

Gradient

B) Active Transporto

Ex Nat i kt pump

Droctional, only good one way * Requires expenditure of metabolic

ECHIP? - * can move molecules, against concentration

Gradient. - ECF Don't forget about the age old question of What was the first hominid to move out of africa?

- ICF Nat 144 mM - 15 mM of the fact kt 4 mM & Pumper 150 MM aming 2-20 times higher in Icf

Study sou

»

call /

acids

- summe

*Small a relatively lace miedlar, lipid molecules diffusé through lipid membranes * Small polar molecules a ions may

diffuse through pores. *Smalla relatively large polar molecules cross via carries mediated transport.

Some molecules cross by more than (1)

Simple. Diff. Fac. Diff. Act. Transport

method core Gradient

Saturation liqeness competition recöplot specificity

En expenditure

No

No.

ولر

No

(4) Endo d Exocytosis Cvesicos .. - large indecules, polar molecules

bacteria (do not cross membrane) *Endocytosis - pinocytosis a phagocytosis

Evocutosis rebase of molecules synthesized necell (requires increase can

Body Fluid Compartments: - water : 60% body weight

& ECF = body's internal environment

(113 total H2O)

o plasma

() interstitial fluid (directly bathing a the sell) *ICE = call's internal environment

ca 13 total Hao) Homeostasis: Every aspect of the ECF must be strictly regulatool, + Physiological mechanisms function

to maintain stable internal environment; Volume a composition of ECF CHR [001. [ cool. IKI, E glucose I, volume

* Osmosis :

Most membranes

poomeable to water

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