UH BIOL 1361 - Types of Transport and Types of Exchange (3 pages)

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Types of Transport and Types of Exchange



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Types of Transport and Types of Exchange

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The 7th lecture regarding active transport, bulk transport, and gas exchange in different categories of organisms.


Lecture number:
7
Pages:
3
Type:
Lecture Note
School:
University of Houston
Course:
Biol 1361 - Intro to Biological Science
Edition:
1

Unformatted text preview:

BIOL 1361 1nd Edition Lecture 7 Outline of Last Lecture I Unsaturated Fatty Acid II Phospholipids III Proteins IV Function Selective Permeability V Osmosis VI Water Balance in Cells problem VII Passive Transport Outline of Current Lecture I Active Transport II Bulk Transport III Gas Exchange IV Characteristics of Respiratory Membranes V Respiratory Surfaces Current Lecture Exam covers Chapter 1 ulcer case Chapter 33 python case Chapter 5 1 5 Chapter 34 5 7 Format 16 matching questions 1 drawing 30 multiple choice I Active Transport a Requires ATP b Cell can pump substances from low to high concentration c Result internal environment is different from external environment d Figure 5 14 Sodium Potassium Pump i The purple blob is an integral protein aka Na K ATPase ii Pumps out 3 NA to maintain lower internal Na iii Pumps in 2 K to maintain higher internal K iv Creates a Na gradient across cell membrane outside HIGH inside low v Na gradient can drive co transport of other molecules moving molecules from low to high concentration e Fig 5 17 Na glucose co transport i Na entering down concentration gradient can bring along glucose up its concentration gradient ii Mechanism of glucose absorption in vertebrate intestinal epithelial cells These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 1 Happens at the apical membrane II Bulk Transport a READ Fig 5 18 and define these terms i Phagocytosis the amoeba video ii Pinocytosis cell engulfs liquid iii Receptor mediated endocytosis iv Exocytosis how enzymes are secreted III Gas Exchange Chapter 34 Sections 5 7 a Physical constraints on gas exchanges i Partial Pressure of gases pressure exerted by a particular gas in a mix of gases 1 1 atm 760 mm Hg 2 Out atmosphere is 21 O2 3 PO2 at sea level 760 mm Hg x 0 21 159 6 mm Hg b Respiratory Fluid AIR WATER 21 O2 4 8 ml O2 L 0 4 0 8 Low density O2 solubility decreased by higher



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