Biology 5090 · O Level
Urinary system
42 practice questions on Urinary system, with worked solutions and instant marking.
Through which body part are most nitrogen compounds removed from humans?
May/June 2015
The diagram shows a kidney machine. Which two substances are also found in the dialysis fluid as it enters the machine?
May/June 2015
The diagram illustrates the human urinary system. Which labelled structure is the ureter?
May/June 2016
The diagram shows dialysis in a kidney machine. Every shape stands for a molecule present in blood or in dialysis fluid. Which shape stands for protein?
May/June 2017
The diagram illustrates the operation of a kidney dialysis machine. Every shape stands for a molecule present in blood or dialysis fluid. Which shape represents urea?
May/June 2018
The diagram illustrates the human urinary system. Which part is the urethra?
May/June 2018
The diagram illustrates the kidneys and the structures connected to them. Which row correctly names P, Q, R and S?
May/June 2019
In what way is the blood in the renal vein different in composition from the blood in the renal artery?
May/June 2019
The diagram shows structures in a human that produce and store urine. Liquids move through tubes X, Y and Z in the directions indicated by the arrows. Which statement about the amount of liquid passing through Y in one day is correct?
May/June 2021
The diagram illustrates parts of the human body that produce and store urine. Liquid flows through tubes X, Y and Z in the directions indicated by the arrows. Which statement about the volume of liquid passing through Y in one day is correct?
May/June 2021
Which graph illustrates the change in the concentration of molecules in the dialysis fluid during kidney dialysis?
May/June 2022
Which graph illustrates how the concentrations of urea and glucose in the blood change during kidney dialysis?
May/June 2022
Compare the ureter and the urethra in relation to their functions in adult humans.
May/June 2022
The blood in the renal vein has a different composition from the blood in the renal artery. In what way is the blood in the renal vein different?
May/June 2023
Which structure contains fluid with a low concentration of urea?
May/June 2023
Which row shows the components found in urine in a healthy person?
May/June 2024
Identify the structures marked P, Q and R in Fig. 4.1.
May/June 2024
Which structure shown is the ureter?
May/June 2025
Filtration and reabsorption are processes that occur in the kidneys. The table shows the daily quantities of some substances that enter the kidneys in the blood, and the quantities of these same substances that leave the kidneys in the urine. What percentage of each substance is reabsorbed by the kidneys in one day?
May/June 2025
Which substance would not be found in the urine of a healthy person with a normal diet?
May/June 2025
A person consumes a large volume of water. In what way does this change the water potentials of the liquids in the renal arteries, the renal veins and the ureters?
Oct/Nov 2015
The diagram shows the kidneys and the structures connected to them. What contents do the labelled structures contain?
Oct/Nov 2015
The diagram presents the label on a bottle of gin. What is likely to occur over the next few hours after someone drinks a large quantity of gin?
Oct/Nov 2015
Define what is meant by excretion.
Oct/Nov 2015
What is one role of a part of the urinary system?
Oct/Nov 2016
Which row identifies the parts of the urinary system responsible for different functions?
Oct/Nov 2016
Some men may develop an enlarged prostate gland. How could this affect urination?
Oct/Nov 2017
The diagram illustrates a simplified dialysis machine. How do the urea concentrations in the blood and dialysis fluid alter as they move through the apparatus?
Oct/Nov 2017
Fig. 2.1 presents a cross-section of a human kidney together with the structures linked to it.
Oct/Nov 2017
In a kidney dialysis machine, which substance is unable to diffuse across the dialysis membrane?
Oct/Nov 2019
The diagram illustrates a dialysis machine. Which substance would not be found in a sample of the dialysis fluid collected from point X?
Oct/Nov 2020
The kidneys are organs for excretion.
Oct/Nov 2020
During kidney dialysis, which blood components move out of the blood into the dialysis fluid?
Oct/Nov 2021
In what way do the concentrations of oxygen and urea in the renal artery differ from their concentrations in the renal vein?
Oct/Nov 2022
Which two key functions do the kidneys perform?
Oct/Nov 2022
The diagram illustrates the sections of the human body that take part in excretion.
Oct/Nov 2022
A treatment known as dialysis is used by some people to remove waste products and extra salts from their blood. In these individuals, which body part is not working properly?
Oct/Nov 2023
Certain health conditions may be identified by carrying out chemical tests for protein and glucose in urine. Which row gives the outcomes for a person whose urine contains protein and glucose?
Oct/Nov 2023
Fig. 3.1 shows a photomicrograph of a kidney section containing several kidney tubules.
Oct/Nov 2023
The diagram illustrates a section of the human urinary system. What are the structures labelled X, Y and Z?
Oct/Nov 2024
The diagram illustrates the excretory system. Which row correctly names the labelled structures?
Oct/Nov 2024
The table lists the concentration of five substances in the blood entering the kidney, in fluid entering the nephron and in the urine. Which substances are completely reabsorbed into the blood from the nephron?
Oct/Nov 2025