{"id":59,"date":"2015-08-07T14:07:38","date_gmt":"2015-08-07T14:07:38","guid":{"rendered":"http:\/\/sites.msudenver.edu\/haysc\/?page_id=59"},"modified":"2015-08-22T00:42:26","modified_gmt":"2015-08-22T00:42:26","slug":"outline-1-bio-2310-membranes","status":"publish","type":"page","link":"https:\/\/sites.msudenver.edu\/haysc\/biology-courses\/human-anatomy-physiology-homepage-bio-2310\/outline-1-bio-2310-membranes\/","title":{"rendered":"Outline-1, BIO 2310, Membranes"},"content":{"rendered":"

II.\u00a0<\/strong>MEMBRANES<\/strong><\/p>\n

A.\u00a0<\/strong>Structure<\/p>\n

1. Phospholipid bilayer<\/p>\n

2.\u00a0Protein “islands”<\/p>\n

3.\u00a0Selectively permeable<\/p>\n

B.\u00a0Movement across membrane<\/p>\n

1.\u00a0Diffusion\u00a0<\/strong>[concentration gradient]\n

High concentration to low concentration<\/em><\/p>\n

2.\u00a0<\/em>Osmosis<\/strong><\/p>\n

Diffusion of water across cell membrane<\/em><\/p>\n

a.\u00a0<\/em>Osmotic pressure<\/p>\n

Tendency of water to move by osmosis<\/em><\/p>\n

b.\u00a0<\/em>Osmolality {solutes – milliosmoles\/volume}<\/p>\n

c.\u00a0Tonicity [solution, solvent]\n

-Isotonic<\/p>\n

-Hypotonic<\/p>\n

-Hypertonic<\/p>\n

3.\u00a0Facilitated diffusion = Passive transport<\/strong><\/p>\n

Diffusion along membrane protein carriers<\/em><\/p>\n

4.\u00a0<\/em>Filtration<\/strong><\/p>\n

Solutions move across membrane by hydrostatic pressure; influenced by molecule size<\/em><\/p>\n

5.\u00a0<\/em>Active transport<\/strong><\/p>\n

Movement against concentration gradient requiring metabolic energy<\/em><\/p>\n

Na\/K Pump (3 Na out\/2 K in)<\/p>\n

6.\u00a0Endocytosis, Phagocytosis, Exocytosis<\/strong><\/p>\n

Processes taking in or discharging particles while maintaining the integrity of the cell membrane<\/em><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

II.\u00a0MEMBRANES A.\u00a0Structure 1. Phospholipid bilayer 2.\u00a0Protein “islands” 3.\u00a0Selectively permeable B.\u00a0Movement across membrane 1.\u00a0Diffusion\u00a0[concentration gradient] High concentration to low concentration 2.\u00a0Osmosis Diffusion of water across cell membrane a.\u00a0Osmotic pressure Tendency of water to move by osmosis b.\u00a0Osmolality {solutes – milliosmoles\/volume} c.\u00a0Tonicity … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":270,"featured_media":0,"parent":42,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-59","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/59","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/users\/270"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/comments?post=59"}],"version-history":[{"count":0,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/59\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/pages\/42"}],"wp:attachment":[{"href":"https:\/\/sites.msudenver.edu\/haysc\/wp-json\/wp\/v2\/media?parent=59"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}