CCHT Exam Guide with Questions and Answers

CCHT Exam Guide with Questions and Answers A Semipermeable membrane is a porous barrier that A. Allows for only certain sized particles to cross B. Prevents fungal contamination C. Can distinguish between particles D. Is biocompatible, non toxic, and hypoallergenic ANSWER A. Allows for only certain sized particles to cross Diffusion is movement of particles: A. By filtration through a biocompatible membrane B. From an area of higher concentration C. into a vacuum created when fluids are forced through a membrane D. Into a space created by solutions moving in countercurrent flow ANSWER B. From an area of higher concentration Negative pressure is pressure created when: A. Larger amounts of filtration exist in a closed space B. Fluids separated by a membrane flow in the same direction C. Larger molecules drag smaller molecules across a membrane D. Fluid is pulled through a restriction ANSWER B. Fluids separated by a membrane flow in the same direction During dialysis, ultrafiltration occurs when: