BIOS 251 WEEK 3 TEST QUESTIONS AND ANSWERS | 2026 | 100% GUARANTEED PASS

BIOS 251 WEEK 3 TEST QUESTIONS AND ANSWERS | 2026 | 100% GUARANTEED PASS Tight junctions can be found in the urinary bladder. True False - answer-True Adherens junctions are composed of a protein plaque, microfilaments and transmembrane proteins. True False - answer-True Like the adherens junctions, desmosomes rely on microfilaments for stability. True False - answer-False Hemidesomsomes add resistance to frictional forces. True False - answer-TrueConnexons allow ions and electric impulses to travel from one cell to another. True False - answer-True Gap junctions are found in some muscle tissues, but not nervous tissue. True False - answer-False All of the following can pass through connexons except: Electrical impulses Ions Small signal molecules The endoplasmic reticulum - answer-The endoplasmic reticulum Which of the following protects cells from the movement of harmful substances, like hydrochloric acid? tight junctions gap junctions adherens junctions hemidesmosomes - answer-tight junctions Which of the following bind cells to the basement membrane?tight junctions gap junctions adherens junctions hemidesmosomes - answer-hemidesmosomes Which of the following junctions allows for communication between cells? tight junctions gap junctions adherens junctions hemidesmosomes - answer-gap junctions A group of cells that have a common origin and function together to perform a specialized group of activities is called a(n) _______. organ organ system tissue organism molecule - answer-tissue This tissue covers body surfaces and lines hollow organs of the body such as the stomach and bladder. epithelial tissue connective tissuemuscular tissue nervous tissue - answer-epithelial tissue If you wanted to design a tissue that restricted the movement of water and other molecules between adjacent cells, which type of junction would you use to connect the cells? tight junctions gap junctions desmosomes hemidesmosomes adherens junctions - answer-tight junctions Which type of muscle tissue would have these characteristics: branched cells, usually has one nucleus, has striations (a striped appearance)? skeletal cardiac smooth - answer-cardiac Which part of a neuron typically receives input? axon dendrites cell body both axon and dendrites none of these - answer-dendritesOf the basic tissue types, which types have excitable cells? epithelia and connective tissues connective and nervous tissues muscle and nervous tissues epithelia and nevous tissues - answer-muscle and nervous tissues