Membrane potent - Study guides, Class notes & Summaries

IB Biology - Unit 1 - Cell Biology Latest Version 100% Pass Cell Theory The theory that cells form the fundamental structural and functional units of all living organisms Unicellular A single celled organism Multicellular Made up of more than one cell. Prokaryotic A small single cell lacking a nucleus or any other membrane-bound organelles. Bacterial cells are an example Eukaryotic A cell characterized by the presence of a nucleus and other membrane-bound organelles. Eukaryo...

SIADH Pituitary (Hypothalamus) - Excess ADH (vasopressin), fluid overload Cause: SSRI's, Small Cell Lung Therapy Manif: Dillusional Hyponatremia (below 115), LOC, seizure, coma, loss deep tendon reflexes, hypothermia, bounding pulse Interv: Tolvaptan / Conovaptan - promotes water excretion w/o NA loss, Admin in Hospital (Black Box) Diuretics Hypertonic Saline #% Sodium Chloride Restrict fluid intake 600mL #1 monitor lung sounds (ABC's) Hemodialysis - Pharmokenetic excretion adversely...

Physioex Exercise 3 > Activity 1: Overview And Pre-Lab Quiz For The Resting Membrane Potential Which of the following statements about receptor potentials is FALSE? - They can trigger an action potential. - Odor molecules can act as stimuli - The receptor proteins respond to stimuli - The receptor potential is carried by neuroglia last one Which of the following is NOT a functional region of a neuron? - receiving region - conducting region - secretory region - medullary region las...

MICR221 EXAMINATION QUESTIONS WITH ALL CORRECT ANSWERS AB toxins - Answer-A has toxic enzymatic activity and B binds to receptors on host cells so A can be internalised by endocytosis botulinum toxin - Answer-blocks release of acteylcholine from stimulatory motor neurons so no muscle contraction and flaccid paralysis tetanus toxin - Answer-blocks release of glycine (stops acetylcholine release) from inhibitory interneurons stimulating muscle contraction (uncontrolled) how botulinum an...

Active transport and membrane potential

Hershey and Chase performed an experiment in order to determine how bacteriophages infect bacteria. What did they find? The bacteriophage injects DNA into the host cell. This was found because, after centrifugation, the pellet was radioactive The largest difference between a Gram + and Gram - bacterial cell is: The gram + cell has a much thicker peptidoglycan layer Why does a Gram + cell stain blue/purple in a gram stain? The Gram + cell stains blue/purple because crystal violet rem...

Resting Membrane Potential & Action PotentialAction Potential - correct answer Abrupt, pulsatile changes in membrane potential. Property of excitable cells that consists of rapid depolarization followed by repolarization. AP's have same size & shape; are propagating; and are "all or nothing". Resting Membrane Potential - correct answer Undisturbed period of action potential when nerve is NOT transmitting impulses. Cell membrane is said to be polarized-inside of cell more negatively cha...

What are health promotion interventions? correct answer: -Education -Immunizations -Screenings -Nutritional health -Physical activity -Pharmacologic agents for smoking cessation and weight loss When a patient has an increased blood loss, from which body fluid compartment is the patient experiencing a loss? correct answer: Intravascular Osmotic pressure correct answer: power of solution to draw water across membrane; leaking fluid out Osmosis correct answer: molecules of a solve...

3.5 Resting Membrane Potential (RMP)Resting Membrane Potential - correct answer electrical potential energy by separation of oppositely charged particles across plasma membrane in all cells Voltage - correct answer -difference in electrical charge between two points -Voltage occurs only at membrane surface -Rest of cell and extracellular fluid are neutral -Membrane voltages range from -50 to -100 mV in different cells (negative sign (-) indicates inside of cell is more negative relative to...

FNDH 620 - Final Exam Study Guide True or False Vitamins: - cannot be made in the body - noncaloric - required in small amounts (mg and mcg) - TRUE Vitamins: - cannot be made in the body - noncaloric - required in small amounts (mg and mcg) What 3 forms can vitamin A take? - - retinol (alcohol) - retinal (aldehyde) - retinoic acid (acid form from retinal) What form of vitamin A is normally found in blood and tissues? - Retinyl Palmitate What form of vitamin A is found...