A. Fill in the blanks.
1. bean- shaped organ in the body to remove nitrogenous waste is called_____
2. Urea and uric acid are _____
3. The structural unit of kidney is _______
4. Artificial filtration of blood is carried out to remove ______
5. Evaporation of sweat from skin has ______ effect.
6. In humans,. carbon dioxide is excreted by _____
Answers
Answer:
1 Kidney
2 waste from body
3 nephron
4 to remove nitrogenous waste from body
5 -
6 when doing activities
Answer:
1. Kidneys
2.nitrogenous wastes
3.nephron
4.remove waste products
5. cooling effect
6.lungs
Explanation:
1. Kidneys are bean-shaped organs of the urogenital tract. They carry out critically important metabolic functions and maintain homeostasis.
2.Urea and uric acid are nitrogenous wastes. Nitrogenous wastes produced in the body of the organism lead to form ammonia that must be eliminated from the body. Urea constitutes the nitrogenous wastes in humans. Reptiles and birds produce uric acid as nitrogenous waste. Kidney helps in the elimination of urea and uric acid from the body through urine
3.The nephron is the microscopic structural and functional unit of the kidney. It is composed of a renal corpuscle and a renal tubule. The renal corpuscle consists of a tuft of capillaries called a glomerulus and an encompassing Bowman's capsule
4.Hemodialysis is a method for removing waste products such as creatinine and urea, as well as free water from the blood when the kidneys are in kidney failure. The mechanical device used to clean the patients blood is called a dialyser, also known as anartificial kidney.
5.Evaporation of sweat from the skin surface has a cooling effect due to evaporative cooling. Hence, in hot weather, or when the individual's muscles heat up due to exertion, more sweat is produced.
6.The lungsare responsible for the excretion of gaseous wastes, primarily carbon dioxide from cellular respiration in cells throughout the body. Exhaled air also contains water vapor and trace levels of some other waste gases.
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