22. The free ribosomes manufacture proteins for cell while fixed ribosomes manufacture for secretion
25. Sodium-potassium ions are pumped in opposite directions across the membrane to build up a chemical and electrical gradient. These gradients are used to spread electrical waves that travel along the nerves. Therefore the action of the nervous tissue requires ATP to generate resting potentials.
26. In primary active transport, the energy to do work comes directly from hydrolysis of ATP. In secondary active transport, transport is driven indirectly by energy stored in ionic gradients created by primary active transport pumps.
CT5. The organelles that break down toxins are the peroxisomes. They are made up of catalase and oxidase enzymes. …show more content…
One of the functions of the smooth ER is to detoxify drugs, such as alcohol. The high alcohol consumption in alcoholics stimulates the production of smooth ER that contained enzymes involved in the elimination of alcohol, making the cells more efficient at this task.
CT8. We shouldn’t drink salt water because the salinity in the ocean is much higher than the concentration the kidney can get. The kidneys cannot make urine salty enough to remove the excess salt you consume in the salt