________ prevent fluid from leaking between adjacent cells.   a. Gap junctions   b. Desmosomes   c. Tight junctions

Red blood cells shrivel when placed in a 10% sucrose solution. When first placed in the solution, the solute concentration of the cell is______ the concentration of the sucrose solution. After the cells shrivel, their solute concentration is______ the concentration of the sucrose solution. A. Greater than... equal to B. Equal to... equal to C. Less than... greater than D. Less than... equal to E. Greater than... less than

37. simple squamous epithelium is found in a. pct b. descending loop on henle c. dct d. collecting dust

When you are sick with a cold or the flu, you may have a stuffy or runny nose, sneeze frequently, or have a headache. The culprit for many of these symptoms is histamine. Listen Which of the following is an effect caused by histamine being released from cells in your body? A necrosis B vasodilation D C apoptosis clotting

FLORE A endocytosis -Secretory vesicles What process is depicted in the basal layer of the glandular epithelium shown in B? O cell fragmentation cell division exocytosis B -Secretory cell fragments

20.The thick filament is composed almost entirely of _____ molecules. (This is a multiple choice question choose the answer from the choices below) A.myosin B.actin C.tropomyosin D.thrombin

If a cell is non-selectively engulfing samples of extracellular fluid, for example to absorb nutrients, it will likely utilize a. exocytosis b. phagocytosis c. pinocytosis d. receptor-mediated endocytosis