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HBA FINAL EXAM PART A

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HBA FINAL EXAM PART A Studying the function of the brain and spinal cord would best fall under which category? a. peripheral nervous system physiology b. central nervous system physiology c. organ... ic physiology d. cellular physiology e. organic anatomy - ANS - b. central nervous system physiology Carbohydrates: a. are found in the nucleus of all cells b. include monosaccharides, disaccharides and polysaccharides c. are responsible for structural support of the plasma membrane d. include triglycerides, fatty acids and phospholipids e. are packaged in the rough endoplasmic reticulum - ANS - b. include monosaccharides, disaccharides and polysaccharides In protein synthesis, transcription: W. involves copying of DNA to mRNA X. turns the mRNA sequence into a polypeptide Y. occurs in the nucleus Z. occurs in the cytoplasm a. if only W, X and Y are correct b. if only W and Y are correct c. if only X and Z are correct d. if only Z is correct e. if all are correct - ANS - b. if only W and Y are correct will: a. swell, possibly burst b. nothing, there is no gradient for the movement of water c. crenate d. shrink e. swell, as the solution is hypertonic - ANS - a. swell, possibly burst In facilitated diffusion: a. energy is required for transport b. solutes move down their concentration gradients c. the process is described as 'active' d. solutes transported are large proteins e. all of the above are correct - ANS - b. solutes move down their concentration gradients Which of the following statements/s is/are TRUE?: W. the inside membrane of an excitable cell is negative compared to the outside X. the resting membrane potential depends on the movement of negative ions only Y. the -70mV RMP value results in part from the concentration gradients of Na+ and K+ Z. the inside membrane of an excitable cell is -55mV a. if only W, X and Y are correct b. if only W and Y are correct c. if only X and Z are correct d. if only Z is correct e. if all are correct - ANS - b. if only W and Y are correct On what section of the neuron do action potentials mostly propagate? a. synaptic terminal b. axon hillock c. soma d. axon e. dendrite - ANS - d. axo [Show More]

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