Final exam bio 203 Study guides, Class notes & Summaries

The primary action of a drug that dilates the veins and venules would be able to - ANSWER reduce preload According to Starling's Law of the Heart, the force of contraction of the myocardium increases with increased - ANSWER preload A coronary artery embolism is often cleared by injecting - ANSWER plasminogen activator Calcium channel blockers, beta-blockers, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers are all used to treat - ANSWER hypertension One of ...

True - ANSWER Echinoderms are classified as gills bc they are evaginations of the body surface Evagination - ANSWER pushing out of the ectoderm True - ANSWER The external intercostal muscles participate in inspiration True - ANSWER The internal intercostal muscles participate in expiration Where does the external intercostal muscle originate - ANSWER Inferior surface of the proximal parts of the ribs Lower ribs on the superior and distal parts False - ANSWER The tracheal system o...

The primary action of a drug that dilates the veins and venules would be able to - ANSWER reduce preload According to Starling's Law of the Heart, the force of contraction of the myocardium increases with increased - ANSWER preload A coronary artery embolism is often cleared by injecting - ANSWER plasminogen activator Calcium channel blockers, beta-blockers, angiotensin-converting enzyme inhibitors and angiotensin receptor blockers are all used to treat - ANSWER hypertension One of ...

What is the reason that closely linked genes are typically inherited together? - the likelihood of a crossover event between these two genes is low All female mammals have one active X chromosome per cell instead of two. What causes this? - activation of the XIST gene on the X chromosome that will become the Barr body In his transformation experiments, what did Griffith observe? - Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the ...

emmetropia - ANSWER normal refraction presbyopia - ANSWER natural elasticity of the lens is lost w/ age. Lens is unable to assume more spherical shape for viewing near objects. requires a convex lens hyperopia - ANSWER farsightedness, eyeball is too short, light rays converge toward a point behind the retina. requires a convex lens myopia - ANSWER nearsightedness, eyeball is too long, light rays hit in the front of the retina. requires a concave lens. astigmatism - ANSWER irregular c...

emmetropia - ANSWER normal refraction presbyopia - ANSWER natural elasticity of the lens is lost w/ age. Lens is unable to assume more spherical shape for viewing near objects. requires a convex lens hyperopia - ANSWER farsightedness, eyeball is too short, light rays converge toward a point behind the retina. requires a convex lens myopia - ANSWER nearsightedness, eyeball is too long, light rays hit in the front of the retina. requires a concave lens. astigmatism - ANSWER irregular c...

emmetropia - ANSWER normal refraction presbyopia - ANSWER natural elasticity of the lens is lost w/ age. Lens is unable to assume more spherical shape for viewing near objects. requires a convex lens hyperopia - ANSWER farsightedness, eyeball is too short, light rays converge toward a point behind the retina. requires a convex lens myopia - ANSWER nearsightedness, eyeball is too long, light rays hit in the front of the retina. requires a concave lens. astigmatism - ANSWER irregular c...

ZSASZA ____ is contraction and emptying of the chamber of the heart. ______ is the relaxation and filling of the chamber of the heart. - ANSWER systole diastole Where does INITIAL amount of Ca++ used in the contractile cell originate from? Where does the MAJORITY of the Ca++ used in the contractile cell originate from? - ANSWER ECF SR Which ions are necessary for the AUTORHYTHMIC cell action potential? Which ions are necessary for the CONTRACTILE cell action potential? - ANSWER autorhy...

Their hypothesis is that the terminal NAG, and no the protein component, is responsible for the damage to the cell wall in H. Pylori. What would be the most appropriate control for testing this hypothesis. - ANSWER Grow H. pylori in a test tube with a glycoprotein that has its terminal NAG removed. Using the pH scale on the right, pure water has _____ H+ in solution than tomatoes - ANSWER 1000 less If a double-stranded DNA sample was composed of 10 percent thymine, what would be the percen...

List 3 important pressures necessary for respiration to take place. - ANSWER alveolar intra-alveolar intrapleural List the 6 respiratory muscles and what type of breathing are they important for. - ANSWER Diaphragm- normal quiet breathing for respiration External intercostals- normal quiet breathing for inspiration Abdominal muscles- used for force expiration Internal intercostals- used for forced expiration Scalenes- used for enhanced inspiration above normal respiration Sternocleido...