Excretion in humans — IGCSE Biology (0970) questions by topic
Excretion in humans questions name the organ responsible for removing urea from the body, trace fluid through a labelled kidney nephron from the glomerulus onward, pick out the single organ that removes urea alongside excess water and excess ions, and pin down which substance healthy kidneys reabsorb completely back into the blood.
Choose, identify, describe, state and outline carry 1 to 18 marks across 22 real questions from 2023 to 2025 papers. Because nephron questions depend on following fluid through the correct sequence of structures, submitting a traced answer for instant marking shows exactly where a stage, such as reabsorption at the wrong point, has been placed incorrectly.
May–June 2025, Paper 11
Which organ excretes urea? A bladder B kidney C lung D stomach
Answer this question and get it marked →May–June 2025, Paper 12
The diagram shows some of the organs involved in excretion. Two kidneys are shown with tubes leading down to a bladder, which empties through a tube at the bottom. Label A points…
Answer this question and get it marked →May–June 2025, Paper 21
What is a role of the glomerulus? A assembling amino acids into proteins B filtration of water, glucose, urea and ions from the blood C reabsorption of glucose, ions and water…
Answer this question and get it marked →May–June 2025, Paper 22
Which organ produces urea? A bladder B kidney C liver D pancreas
Answer this question and get it marked →May–June 2025, Paper 41
The kidney is an organ in the excretory system. Describe what is meant by the term excretion.
Answer this question and get it marked →May–June 2024, Paper 11
Which process do living organisms use to remove excess carbon dioxide from their bodies? A excretion B movement C nutrition D respiration
Answer this question and get it marked →Which diagram of the excretory system is labelled correctly? Diagrams A–D show the kidney, bladder, ureter and urethra labelled in different arrangements. A B C D
Answer this question and get it marked →May–June 2024, Paper 12
The diagram shows organs in the human body labelled A, B, C and D. Which organ is responsible for the excretion of urea in the human body? A B C D
Answer this question and get it marked →May–June 2024, Paper 21
In healthy people, which substance is completely reabsorbed into the blood from the kidney nephrons? A glucose B salts C urea D water
Answer this question and get it marked →May–June 2024, Paper 22
Which substance has a higher concentration in the renal vein than in the renal artery? A carbon dioxide B glucose C oxygen D urea
Answer this question and get it marked →Where are amino acids deaminated and converted into urea? A bladder B kidneys C liver D pancreas
Answer this question and get it marked →October–November 2024, Paper 22
Which part of an amino acid is removed during deamination?
Answer this question and get it marked →Which process happens in a glomerulus in the kidney?
Answer this question and get it marked →October–November 2024, Paper 42
Fig. 3.1 shows a kidney nephron and its associated blood vessels. The glomerulus is visible at the top. Fluid A flows through the nephron (indicated by arrows). Part A is labelled…
Answer this question and get it marked →May–June 2023, Paper 11
Which part of the body excretes urea, excess water and excess ions? A gall bladder B heart C kidney D lungs
Answer this question and get it marked →The diagram shows the kidneys and associated organs with labels A, B, C and D. Which label is the ureter? A B C D
Answer this question and get it marked →May–June 2023, Paper 12
The diagram shows the human body and some of its organs labelled A, B, C and D. Which structure removes urea from the blood? A B C D
Answer this question and get it marked →May–June 2023, Paper 21
Which row shows where glucose will be found in the body of a healthy human after eating a meal? Columns: renal artery; renal vein; glomerulus; nephron; ureter. A yes; no; yes;…
Answer this question and get it marked →May–June 2023, Paper 22
The diagram shows a cross-section of a kidney with structures labelled P, Q and R. What are the correct names for structures P, Q and R? Columns: P; Q; R. A urethra; cortex;…
Answer this question and get it marked →May–June 2023, Paper 31
Fig. 7.1 is a diagram showing some of the organs in the human body labelled A–F. Table 7.1 shows the names of some of the organs in Fig. 7.1, the identifying letters of some of…
Answer this question and get it marked →October–November 2023, Paper 12
Which row shows an organ and the substance it excretes? Columns: organ; substance excreted. A bladder; water B kidney; ions C lung; oxygen D urethra; urea
Answer this question and get it marked →October–November 2023, Paper 22
Which row shows an organ and the substance it excretes? Columns: organ; substance excreted. A bladder; water B kidney; ions C lung; oxygen D urethra; urea
Answer this question and get it marked →Other IGCSE Biology topics
- Human nutrition (75)
- Organisms and their environment (64)
- Coordination and response (62)
- Reproduction (53)
- Organisation of the organism (cells) (50)
- Plant nutrition (42)
- Characteristics and classification of living organisms (40)
- Variation and selection (40)
- Transport in animals (39)
- Inheritance (39)
- Movement into and out of cells (38)
- Transport in plants (38)