Plant nutrition — IGCSE Sciences - Co-Ordinated (0973) questions by topic
Plant nutrition questions examine a floating leaf's stomata position, starch testing after covering leaf sections with black paper, counting gas bubbles from an aquatic plant in light and dark, and identifying the correct photosynthesis word equation, worth from 1 to 12 marks.
Identify, state and explain top the command words in this IGCSE Co-ordinated Sciences topic, with complete and describe also frequent: explain a starch-test result by linking it to light exposure, not just report the colour. 19 real questions from 2023 to 2025 papers sit below. Submit each attempt for instant marking to check the direction of a reactant-to-product equation is exactly right.
May–June 2025, Paper 11
The starch in a plant is removed. One part of a leaf of the plant is covered with black card. The plant is then put in the light for six hours. The card is removed and the leaf is…
Answer this question and get it marked →May–June 2025, Paper 12
Which statement about photosynthesis is correct? A A plant uses carbon dioxide and glucose to produce oxygen and water. B A plant uses carbon dioxide and water to produce glucose…
Answer this question and get it marked →May–June 2025, Paper 21
Which substance is essential to make chlorophyll? A calcium ions B cellulose C iron ions D magnesium ions
Answer this question and get it marked →May–June 2025, Paper 22
Which row shows the transport and use of nitrate ions by plants? tissue used to transport nitrate ions around plant nitrate ions used to make --- --- --- A phloem amino acids B…
Answer this question and get it marked →May–June 2025, Paper 41
Carbon dioxide is taken in for the process of photosynthesis. State the balanced symbol equation for photosynthesis.
Answer this question and get it marked →May–June 2024, Paper 11
The rate of photosynthesis of an aquatic plant is measured by counting the number of bubbles of oxygen produced every minute, as shown. The rate is measured at different light…
Answer this question and get it marked →May–June 2024, Paper 12
The diagram shows the cross-section of part of a leaf with cells labelled W, X, Y and Z. [Diagram: leaf cross-section with cells W, X, Y, Z; gas exchange and water loss occur at…
Answer this question and get it marked →May–June 2024, Paper 21
The diagram shows a cross-section of a leaf of a plant. The leaf is adapted to float on water with the upper epidermis exposed to the air. [Diagram: floating leaf; stomata are in…
Answer this question and get it marked →May–June 2024, Paper 22
How many molecules of carbon dioxide are needed to produce six molecules of glucose? (6CO2 + 6H2O - C6H12O6 + 6O2 for one molecule of glucose) A 1 B 2 C 3 D 36
Answer this question and get it marked →May–June 2024, Paper 32
A student investigates the effect of light on an aquatic plant, counting bubbles of gas released in one minute in the light and in the dark. Table 7.1: light 32 bubbles, dark 0…
Answer this question and get it marked →May–June 2023, Paper 11
The diagram shows arrows representing gas exchange between a plant and the air. Carbon dioxide in the air is above the plant (arrows 1 and 2) and oxygen in the air is below the…
Answer this question and get it marked →May–June 2023, Paper 12
The diagram shows a leaf, still attached to a plant, with both green and white areas that have been partly covered with black paper. The leaf is left in bright light for six hours…
Answer this question and get it marked →May–June 2023, Paper 21
An experiment is set up to investigate the effect of changing the light intensity on the rate of photosynthesis. The lamp is moved in 10 cm intervals away from the plant and the…
Answer this question and get it marked →May–June 2023, Paper 22
The graph shows the effect of increasing light intensity on the rate of photosynthesis of a submerged aquatic plant. Point X is on the steeply rising part of the curve. [Graph:…
Answer this question and get it marked →May–June 2023, Paper 31
Fig. 7.1 is a drawing of a cross-section of a leaf, with parts labelled A (waxy outer layer), B (lower layer), C (pore on lower surface). State the names of the parts labelled A,…
Answer this question and get it marked →May–June 2023, Paper 41
Oxygen is one of the products of photosynthesis. Complete the balanced symbol equation for photosynthesis: ... + ... -(light, chlorophyll)- ... + 6O2
Answer this question and get it marked →May–June 2023, Paper 42
Photosynthesis is an enzyme-controlled reaction. Fig. 4.1 is a graph showing the effect of temperature on the rate of photosynthesis (rate rises to a peak around 35-40 C then…
Answer this question and get it marked →October–November 2023, Paper 11
Which conditions will result in the highest rate of photosynthesis? A light intensity high, carbon dioxide concentration high B light intensity high, carbon dioxide concentration…
Answer this question and get it marked →October–November 2023, Paper 21
The diagram shows a cross-section through a leaf with tissues labelled A, B, C and D. Which tissue is adapted for gas exchange? [Diagram: leaf cross-section; D is the spongy…
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)
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- Atoms, elements and compounds (29)
- Organisms and their environment (28)
- Stoichiometry (24)
- Chemical reactions (22)
- The Periodic Table (22)
- Human nutrition (21)
- Reproduction (21)