Excretion
GCE Biology

a) Define the term excretion. (2 marks) b) State TWO differences between excretion and egestion. (4 marks) c) Name the excretory organs in mammals and state ONE excretory product of each organ. (6 mar…

a) Draw a labelled diagram of a nephron and its associated blood supply. (8 marks) b) Describe how urine is formed in the mammalian kidney, naming the processes involved and where each occurs. (8 mark…

In the mammalian kidney, which structure is responsible for the selective reabsorption of glucose from the glomerular filtrate?

A patient's urine sample was found to contain glucose and proteins. This condition most likely indicates

Which of the following correctly pairs an excretory organ with its primary excretory product in humans?

A man produces 180 litres of glomerular filtrate per day but excretes only 1.8 litres of urine. What percentage of the filtrate is reabsorbed by the kidney tubules?

Antidiuretic hormone (ADH) promotes water conservation in the body by

Which of the following animals excretes nitrogenous waste mainly as uric acid?

The process by which harmful nitrogenous waste is removed from the body of an organism is called