Organisation of the organism (cells) — IGCSE Sciences - Co-Ordinated (0973) questions by topic
Organisation of the organism questions calculate a chicken egg's actual length from a magnified drawing, find a cell's actual width from an image at times-1000 magnification, name the structure forming a plant cell's outer boundary and its function, and identify what all living organisms are made from, worth from 1 to 12 marks.
Identify, state, complete and calculate lead the command words in this IGCSE Co-ordinated Sciences topic, with describe also common: calculate actual size by dividing image length by magnification, not multiplying by mistake. 14 real questions from 2023 to 2025 papers make up this page. Submit each attempt for instant marking to check a magnification calculation is inverted correctly.
May–June 2025, Paper 11
The photograph shows a caterpillar. The length of line PQ is 90 mm. The actual length of the caterpillar is 30 mm. What is the magnification of the photograph? A ×0.33 B ×3.0 C…
Answer this question and get it marked →May–June 2025, Paper 12
The diagram shows a plant cell. A structure labelled X forms the outer boundary of the cell. Which row names X and describes its function? name function --- --- --- A cell…
Answer this question and get it marked →May–June 2025, Paper 22
Which row shows a specialised cell type matched with its function? cell type function --- --- --- A ciliated movement of mucus B egg transport of oxygen C red blood phagocytosis D…
Answer this question and get it marked →May–June 2025, Paper 31
Fig. 3.1 is a diagram of a palisade cell from a potato plant. The labelled structures are: chloroplast, cell wall, vacuole, nucleus, mitochondria, cell membrane, cytoplasm.…
Answer this question and get it marked →May–June 2025, Paper 32
Fig. 1.1 is a diagram of a bacterial cell. The diagram shows a rod-shaped cell with a cell membrane (labelled), an outer boundary layer labelled A, looped DNA in the cytoplasm…
Answer this question and get it marked →May–June 2025, Paper 41
Fig. 3.1 is a magnified image of a plant root tip viewed using a light microscope. At X in Fig. 3.1, there are 37 cells across the width of the root tip. The actual width of the…
Answer this question and get it marked →May–June 2025, Paper 42
Fig. 1.1 is a diagram of a root hair cell. The cell has a long thin projection (the root hair) extending to the right. Letters A-E label structures in the cell: A points to a…
Answer this question and get it marked →Table 3.1 shows the diameter of a flu virus and different types of cells. Table 3.1 diameter / um --- --- flu virus 0.1 bacterial cell 1.0 red blood cell 7.0 lymphocyte 15.0 plant…
Answer this question and get it marked →May–June 2024, Paper 11
The diagram shows a typical plant cell with structures labelled X, Y and Z (from the outside inward). [Diagram: plant cell; X = cell wall, Y = cell membrane, Z = cytoplasm.] Which…
Answer this question and get it marked →May–June 2024, Paper 22
What are all living organisms made from? A cells B eggs C mesophyll D sperm
Answer this question and get it marked →May–June 2023, Paper 11
The diagram shows a cell with a magnification of x1000. The width of the image is 45 mm. [Diagram: a cell with its width labelled; image width = 45 mm at x1000 magnification.]…
Answer this question and get it marked →May–June 2023, Paper 12
Which statement about the structures found in animal and plant cells is correct? A Both have cell walls. B Only plant cells have a cell membrane. C Both have cytoplasm. D Only…
Answer this question and get it marked →May–June 2023, Paper 22
The diagram shows a specialised cell from a plant, with structures labelled Z, Y, X and W. [Diagram: specialised plant cell with labels W, X, Y, Z.] Which structures not found in…
Answer this question and get it marked →October–November 2023, Paper 11
A student draws a diagram of a chicken's egg and includes the magnification, m, of the drawing. The student writes m = x2. The image length on the diagram is 140 mm. What is the…
Answer this question and get it marked →Other IGCSE Sciences - Co-Ordinated topics
- Motion, forces and energy (77)
- Electricity and magnetism (65)
- Practical skills (60)
- Organic chemistry (40)
- Waves (40)
- Atoms, elements and compounds (29)
- Organisms and their environment (28)
- Stoichiometry (24)
- Chemical reactions (22)
- The Periodic Table (22)
- Human nutrition (21)
- Reproduction (21)