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Human Physiology
week 7-13
| Question | Answer |
|---|---|
| Which of the following cells contain 46 chromosomes? | Primary spermatocytes |
| Which of the following body fluid compartments has the same volume (percentage of body weight) in the infant, the adult male, and the adult female? | plasma |
| Which of the following would be important in treating metabolic alkalosis? | chloride ions |
| When the adrenal cortex is stimulated to increase its secretion of aldosterone, the first thing that happens is a(n) | increase in the kidney tubule reabsorption of sodium |
| Which of the following is not true of enzymes? | They change chemically and are in the end products of the reaction |
| Dalton law states that the partial pressure of a gas in a mixture of gases is _______to the total pressure of the mixture. | Directly related to the concentration of that gas in the mixture and |
| Boyle's law states that the volume of a gas varies ______ with pressure at a _______temperature. | inversely;contant |
| which of the following would you expect to happen to cellular respiration during exercise? | Increased cellular respiration occurs during exercise; causing a rise in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause an increase in respiration rate. |
| The body's defense mechanisms can be organized into one of two major categories of immune mechanisms; these are | innate and adaptive immunity |
| The functions of the lymphatic system include; | -transporting interstitial fluid back to the bloodstream -transporting absorbed fats from the intestine to the blood |
| Memory Cells | become plasma cells when exposed to an antigen |
| Recognition of antigens by antibodies occurs when an | antigen's epitopes fit into and bind to an antigen molecule's antigen-binding site |
| Accommodation for near vision necessitates | -an increase in the curvature of the lens -constriction of the pupils -convergence of the two eyes |
| Which of the following is not true of a receptor potential? | it follows the all-or-none law |
| Neurotransmitters are released in a synapse and bind to: | receptors on the postsynaptic neuron |
| Muscle contractions will continue as long as: | the calcium ions are attached to the troponin |
| Which of the following is not an end-product of the breakdown of ATP? | -An inorganic phosphate -Energy that can be used in muscle contraction -ADP |
| The first event to occur in muscle relation is that: | the sarcoplasmic reticulum begins actively pumping calcium back into its sacs |
Created by:
CatalinaG93
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