Homeostasis and the Human Urinary System

Question 11:(a)(i) Explain the importance of maintaining the body temperature at 37 °C.(a)(ii) Describe two physical ways in which the body reacts to regulate body temperature after a person bathes with cold water.(b) In your opinion, what is the effect on urine excretion if the food consumed contains large quantities of protein?(c) Explain how the … Read more

Question 8:Describe how the body temperature of a worker who has been in a cold room for 6 hours is regulated. Answer:• The body temperature of the worker drops after sitting in a cold room for 6 hours.• The thermoreceptors on the skin receive stimuli and transmit nerve impulses to the temperature control centre in … Read more

Question 6:(a) A patient suffered a disease that required the pancreas to be removed. Explain the effect of removing the pancreas on the production of enzymes and hormones, and subsequently on digestion and blood glucose levels in the individual.(b) What advice can be given to the patient to help him deal with the health problems … Read more

Question 1:In which part of the kidney can the loop of Henle be found? Answer:The loop of Henle can be found in the kidney medulla. Question 2:State the condition of urine that will be produced after an individual(a) drinks plenty of water(b) eats too much salty food Answer:(a) Diluted urine in large amounts(b) Concentrated urine … Read more

Question 1:Azman suffers from the formation of kidney stones. Explain the effects of kidney stones on his health. Answer:Kidney stones may block the ureter and reduce the production of urine. Question 2:Suggest two reasons why a person would have kidney stones. Answer:Not drinking enough water and excessive intake of mineral salts such as calcium

Question 1:In which part of the kidney can the proximal convoluted tubule, loop of Henle and distal convoluted tubule be found? Answer:The proximal convoluted tubules and distal convoluted tubules are found in the cortex, whereas the loop of Henle is found in the medulla. Question 2:Suggest two possible activities that can cause the walls of … Read more

Question 1:What is the meaning of homeostasis? Explain how homeostasis happens. Answer:Homeostasis is the regulation of the physical and chemical factors of the internal environment within a normal range so that cells can function optimally. The mechanism of homeostasis occurs by negative feedback:• A values that exceeds the normal range is reduced back to normal.• … Read more