Cell Phys Final Review | Exam Elabortions
1. what cell type makes up the extra-cellular matrix? (ECM): fibroblasts
2. main component of the cell membrane?: phospholipids
3. what is the most common protein found in the ECM?: collagen
4. Saturated fatty acids?: dense, solid, animal and palm fat
5. what molecule add RIGIDITY to cell membranes?: cholesterol
6. unsaturated fatty acids?: not dense, fluid, fish and plant fat
7. passive transport: water soluble substances, high to low, no ATP needed
8. active transport: water soluble substances, low to high, ATP IS needed
9. free diffusion: fat soluble substances, ATP not needed
10.what substances freely diffuse?: gases
11.what are gases used for?: quick exchanges
12.which of the following is NOT a fat soluble vitamin?: C
13.What are the fat soluble vitamins?: D E A and K
14.what are fat soluble vitamins used by?: long term storage of vitamins
15.facilitated diffusion: Movement of specific molecules across cell membranes through
required protein channels; ATP needed sometimes
16.is faciliated diffusion active or passive transport?: passive transport (high to low)
17.what substances require FACILITATED diffusion?: anything water soluble, ionic, polar, used
for charge often
18.cell signaling of ACH and acetylcholine (ligand gated): causes depolariza- tion of
nervous/muscle cells, Na+ and K+ mvt
19.cell signaling of TNFalpha and insulin (enzyme linked): kinase usually acti- vates upon ligand
binding; causes intracellular +Pi of target proteins, often specific gene transcription
20.cellsignaling of glucagon (G-protein coupled): ligand binding activated 2 messenger,
cAMP-->Ca+2 release
causes: secondary messenger activation, often phosphorylation
ex: adrenergic receptors (catecholamines [EPI, NOR, DOP] --> cAMP-->kinase activity
involved in mediating sympathetic NS "fight or flight"
21.what diffuses through the cell membrane and binds to intracellular recep- tors?: steroid
hormones
22.function of microtubules?: guide movement of organelles/locomotion proteins
23.what do microtubules make up?: spindle, cilia, lung, and flagella
For assistance with assignments contact
, Cell Phys Final Review | Exam Elabortions
24.what does actin do?: dynamic changes in cells adhesion belt, muscle contrac- tions, focal
adhesions
For assistance with assignments contact
1. what cell type makes up the extra-cellular matrix? (ECM): fibroblasts
2. main component of the cell membrane?: phospholipids
3. what is the most common protein found in the ECM?: collagen
4. Saturated fatty acids?: dense, solid, animal and palm fat
5. what molecule add RIGIDITY to cell membranes?: cholesterol
6. unsaturated fatty acids?: not dense, fluid, fish and plant fat
7. passive transport: water soluble substances, high to low, no ATP needed
8. active transport: water soluble substances, low to high, ATP IS needed
9. free diffusion: fat soluble substances, ATP not needed
10.what substances freely diffuse?: gases
11.what are gases used for?: quick exchanges
12.which of the following is NOT a fat soluble vitamin?: C
13.What are the fat soluble vitamins?: D E A and K
14.what are fat soluble vitamins used by?: long term storage of vitamins
15.facilitated diffusion: Movement of specific molecules across cell membranes through
required protein channels; ATP needed sometimes
16.is faciliated diffusion active or passive transport?: passive transport (high to low)
17.what substances require FACILITATED diffusion?: anything water soluble, ionic, polar, used
for charge often
18.cell signaling of ACH and acetylcholine (ligand gated): causes depolariza- tion of
nervous/muscle cells, Na+ and K+ mvt
19.cell signaling of TNFalpha and insulin (enzyme linked): kinase usually acti- vates upon ligand
binding; causes intracellular +Pi of target proteins, often specific gene transcription
20.cellsignaling of glucagon (G-protein coupled): ligand binding activated 2 messenger,
cAMP-->Ca+2 release
causes: secondary messenger activation, often phosphorylation
ex: adrenergic receptors (catecholamines [EPI, NOR, DOP] --> cAMP-->kinase activity
involved in mediating sympathetic NS "fight or flight"
21.what diffuses through the cell membrane and binds to intracellular recep- tors?: steroid
hormones
22.function of microtubules?: guide movement of organelles/locomotion proteins
23.what do microtubules make up?: spindle, cilia, lung, and flagella
For assistance with assignments contact
, Cell Phys Final Review | Exam Elabortions
24.what does actin do?: dynamic changes in cells adhesion belt, muscle contrac- tions, focal
adhesions
For assistance with assignments contact
