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OAT EXAM WITH 100% CORRECT ANSWERS LATEST UPDATE
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OAT EXAM WITH 100% CORRECT ANSWERS LATEST UPDATE...
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OAT EXAM WITH 100% CORRECT ANSWERS LATEST UPDATEPhospholipid Bilayer - ANSWER contains cholesterol and embedded proteins
phospholipid head and fatty acid tail
Phospholipid head - ANSWER hydrophilic
Fatty Acid Tail - ANSWER Hydrophobic
Exterior Phospholipid bilayer - ANSWER hydrophilic, phosphoric acid region
Interior Phospholipid bilayer - ANSWER hydrophobic, fatty acid region
Aldosterone Function - ANSWER Stimulates NA+ reabsorption and K+ secretion,
increases water reabsorption, blood volume, and blood pressure
Aldosterone Source - ANSWER secreted from adrenal cortex
regulated by renin-angiotensin system
ADH role- ANSWER increases collecting duct's permeability to water to increase water
reabsorption
ADH source- ANSWER secreted from posterior pituitary with high (solute) in the blood
Liver's role in homeostasis- ANSWER 1. gluconeogenesis
2. processing of nitrogenous wastes (urea)
3. detoxificiation of wates/chemicals/drugs
,4.storage of iron and vitamin B12
5.synthesis of bile and blood proteins
6.beta-oxidation of fatty acids to ketones
7.interconversion of carbs, fat, and amino acids
Allosteric regulation - ANSWER binding of an effector molecule at the allosteric site
Feedback inhibition regulation - ANSWER end product inhibits initial enzyme pathway
Reversible inhibition regulation - ANSWER competitive inhibitors bind to active site;
noncompetitive inhibitors bind to allosteric site
Glycolysis - ANSWER occurs in cytoplasm
C6H12O6+2 ADP+2 Pi +2NAD+ -> 2 pyruvate +2 ATP +2NADH + 2H+ +2 H2O
Fermentation - ANSWER takes place in anaerobic conditions. Pyruvate is converted into
lactic acid (in muscle) or ethanol (in yeast)
Respiration - ANSWER takes place in aerobic (?) conditions
-pyruvate decarboxylation
-citric acid cycle
-electron transport chain
-oxidative phosphorylation
Pyruvate decarboxylation - ANSWER pyruvate converted to acetyl CoA in the
mitochondrial matrix
Citric Acid Cycle - ANSWER Acetyl CoA enters; coenzymes leave
, Electron Transport Chain - ANSWER Coenzymes are oxidized; energy is released as
electrons are transferred from carrier to carrier
Oxidative phosphorylation - ANSWER electrochemical gradient caused by NADH and
FADH2 oxidation provides energy for ATP synthase to phosphorylate ADP into ATP
Sarcomere - ANSWER -contractile unit of the fivers in skeletal muscle
-contain thin actin and thick myosin filaments
Initiation of contraction - ANSWER depolarization of a neuron leads to action potential
Osteoblast - ANSWER builds bone
Osteoclast - ANSWER breaks down bone
Reformation of bone - ANSWER inorganic ions are absorbed from the blood of use in
bone
Resorption of bone - ANSWER Inorganic ions are released into the blood
Follicle stimulating hormone (FSH) - ANSWER Anterior Pituitary
-follicle maturation, spermatogenesis
Luteinizing (LH) - ANSWER Anterior Pituitary
-ovulation, testosterone
Adrenocorticotropic (ACTH) - ANSWER Anterior Pituitary
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