<span> If the concentration of blood is 0.5 M, and red blood cells that are bathed in blood neither shrink nor swell and burst, the concentration of cytoplasm of RBCs is A. 0.5m. An isotonic solution refers to two solutions that have the same water concentration on both sides of a membrane. So, cells in isotonic solution have the same water concentration as the isotonic solution and thus they will neither shrink nor swell and burst. If the concentration of blood is 0.5 M, the concentration of RBC cytoplasm must be the same (0.5 M).</span>
Answer:
The sori are found on the underside of fern leaves and contain sporangia.
Explanation:
Sori are structures on the underside of leaves of ferns. They consist of a variety of sporangia and sometimes a indusium that protects the young sporangias. The shape of the sorus is often of importance when determining a species of fern.
Answer:
Explanation:
Porque a tecnologia está evoluindo junto a medicina com isso será possível operar pacientes, localizar tumores e fazer exames.
Answer:
Pepsinogen is produced by chief cells and is activated by hydrochloric acid secreted by parietal cells.
Explanation:
Pepsinogen is a proenzyme produced in the chief cells (that are located in the stomach lining) that, when gets activated, is transformed into pepsin - a peptidase with the function to degrade proteins into amino acids.
The reason why pepsinogen is released inactive is that it would break down all of the cell's proteins because of its proteolytic nature. For this reason, it is released as a proenzyme and gets activated when reaches the acidic environment provided by the hydrochloric acid secreted by the parietal cells, also in the stomach lining.
