The hormone Aldosterone controls: Reabsorption of Sodium from urea in kidney. Secretion of Sodium into the urea in kidney. Reabsorption of Potassium from urea in kidney. Secretion of Potassium into urea by kidney. Secretion of Calcium into urea by kidney. The stiffness of muscles after death (rigor mortis) results from: ACh release by motor neuron and ATP excess in cells led to muscles contraction. Release of Ca^2+ and lack of ATP to pump Ca^2+ ions back to estimate. Accumulation of Lactic Acid in muscle cells. Excess of glucose that break down with release of energy for muscle contraction. Na^+ leak into cells through broken plasma membrane and depolarize it. Jorge tried to pick up his sofa but found it is much heavier than he expected. What must occur in the muscle to increase tension so he can pick up this heavy piece of furniture? Tetanic spasm Recruitment of additional motor units Isometric contraction. Isotonic eccentric contractions. Increase of muscle tone. Before muscle cell can contract, ATP must bind to: Z disc. Myosin head. Tropomyosin molecules. Troponin molecules. Active sites of actin molecules. Which of these organs is an exocrine and endocrine gland altogether? Pineal gland. Adenohypophysis. Thyroid gland. Pancreas. Adrenal gland. The walls of hollow organs and blood vessels contained this type of muscles. Striated. Skeletal. Cardiac. Voluntary. Smooth.
35. A and D
Aldosterol help to maintain blood pressure,salt balance,water balance, by helping the kidney to retain Na and secretion potassium.
36. D
Exess of glucose that breakdown with release of energy for muscle contraction.
After death reapiration in an organism ceases depleting the corpse of oxygen used in the making of ATP which is required to cause to separation of actin myosin cross bridge during relaxation of muscle. When there is oxygen source body genrating ATP via anaerobic glycolysis when the body glycogen diminises the ATP amount also reduced causing rigor mortis where body unable to break the actin myosin bridge
37. B
Recruitment of additional motor unit.
38. B
Myosin head
39. D
Pancreas
Pancreas secreting digestive enzymes to digest food and it also secrete insulin which is endocrine in origin
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