1. Removal of all kind of waste from the body is included under excretion do you agree? give reason?
2. The Kidneys filter wastage from the blood. which structure in the Kidneys act as filtering units?
3. All animals have special excretory organs. do you agree? give reason?
4. Tests shows that the urine of a patient contain sugar. what disease is the patient suffering from?
Answers
Answer:
1) No, removal of all kinds of waste from the body is not included under excretion. Excretion involves removal of only metabolic wastes of cells activities. It includes only liquid and gases. The removal of solid wastes (undigested food) from the body is called egestion.
2) Each of your kidneys is made up of about a million filtering units called nephrons. Each nephron includes a filter, called the glomerulus, and a tubule. The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes.
3) Protozoan's have no organs for excretion. ... As they live in an aquatic habitat, their wastes are eliminated by diffusion through the plasma membrane. Simple multicellular organisms like Hydra throw out solid waste matter through their mouth.
4) You may get a glucose in urine test as part of your regular checkup or if you have symptoms of diabetes and cannot take a blood glucose test. Symptoms of diabetes include: Increased thirst. More frequent urination.
Answer:
1.True because excretion is the process of removal of wastes.
2.Nephrons are the functional unit of our excretory system.
3.True because some organisms are amonotelic , some are uricotelic and some are ureotelic. They would require special organs for the same.
4.Diabetes mellitus, insipidus.