Sub-topic 1
2024 · National Preliminary
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Glycolysis: the shared pathway of anaerobic respiration and fermentation
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Sub-topic 2
2024 · National Preliminary
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Substances exchanged during respiration and the respiration equation
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Sub-topic 3
2024 · National Preliminary
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Aerobic and anaerobic respiration: reactants, products and atp yield
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Sub-topic 4
2026 · National One-Eighth
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Stages of cellular respiration: krebs cycle, electron transport chain and pyruvate oxidation
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Sub-topic 5
2023 · National Preliminary
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Stages of cellular respiration: krebs cycle, electron transport chain and pyruvate oxidation
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Sub-topic 6
2026 · National Preliminary
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Cutaneous (skin) respiration in earthworms
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Sub-topic 7
2025 · National Semifinal
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Cyanide poisoning: blocking the electron transport chain and halting oxidative phosphorylation
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Sub-topic 8
2025 · National Semifinal
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Number of co2 molecules generated per acetyl-coa in the citric acid cycle
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Sub-topic 9
2024 · National Semifinal
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Purpose of moist, thin amphibian skin: cutaneous respiration
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Sub-topic 10
2025 · National Semifinal
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Facultative anaerobe: an organism that switches between aerobic and anaerobic respiration
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Sub-topic 11
2026 · National One-Eighth
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Gas exchange structures in woody stems: lenticels
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Sub-topic 12
2026 · National One-Eighth
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Gas exchange structures in woody stems: lenticels
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Sub-topic 13
2018 · National Preliminary
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Oxygen debt and post-exercise breathing
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Sub-topic 14
2018 · National One-Eighth
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Gas exchange across the earthworm's body surface
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Sub-topic 15
2021 · National Preliminary
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Vital capacity and lung volumes
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Sub-topic 16
2025 · National Preliminary
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Riddle: the diaphragm, primary muscle of inspiration
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Sub-topic 17
2013 · National Preliminary
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Ethanol as the end product of yeast fermentation
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Sub-topic 18
2013 · National Preliminary
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Number of pyruvate molecules formed per glucose in glycolysis
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Sub-topic 19
2013 · National Preliminary
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Number of atp consumed in the investment phase of glycolysis
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Sub-topic 20
2013 · National Preliminary
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Number of atp produced in the payoff phase of glycolysis
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Sub-topic 21
2013 · National Preliminary
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Lizards breathe via lungs (true/false)
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Sub-topic 22
2013 · National Quarterfinal
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Products of the light reaction needed by the calvin cycle (dark reaction)
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Sub-topic 23
2013 · National Quarterfinal
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Fermentation as anaerobic breakdown of organic compounds
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Sub-topic 24
2013 · National Quarterfinal
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Aerobic respiration following glycolysis maximizes atp yield
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Sub-topic 25
2013 · National Quarterfinal
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Advantage of countercurrent flow of water and blood in fish gills
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Sub-topic 26
2016 · National One-Eighth
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Leaves as the primary site of photosynthesis
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Sub-topic 27
2016 · National One-Eighth
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Gill filaments as the site of gaseous exchange in bony fish gills
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Sub-topic 28
2016 · National One-Eighth
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Destarching a potted plant's leaves by prolonged darkness
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Sub-topic 29
2016 · National One-Eighth
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Iodine test confirming a leaf has been destarched
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Sub-topic 30
2016 · National One-Eighth
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Starch reappearing in a destarched, light-exposed leaf as evidence of photosynthesis
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Sub-topic 31
2016 · National One-Eighth
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Riddle: chlorophyll, named by pelletier and caventou
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Sub-topic 32
2017 · National Semifinal
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Problem of the day: physiological benefits of high-altitude training for athletes
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Sub-topic 33
2017 · National Quarterfinal
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The stroma and thylakoid space as the two major chloroplast compartments
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Sub-topic 34
2017 · National Quarterfinal
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Acetyl-coa entering the krebs cycle from the transition (link) reaction
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Sub-topic 35
2018 · National Preliminary
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Lactic acid and alcoholic fermentation as the two main anaerobic respiration types
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Sub-topic 36
2019 · National Preliminary
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Chlorophyll a and b together broadening the light spectrum captured for photosynthesis
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Sub-topic 37
2020 · National Preliminary
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Wax paper wrapping reducing moisture loss and slowing ripening in stored apples
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Sub-topic 38
2021 · National Semifinal
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Photosynthesis and respiration form a cyclic exchange of glucose, o2, co2 and water
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Sub-topic 39
2021 · National Quarterfinal
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The alveoli are the major site of gas exchange in the lungs
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Sub-topic 40
2021 · National Quarterfinal
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Photorespiration: plants taking up oxygen and releasing co2 in the light
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Sub-topic 41
2021 · National Quarterfinal
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True or false: green plants produce co2 and water as respiratory products
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Sub-topic 42
2022 · National Preliminary
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True or false: protoplasmic respiration alone keeps the cell healthy
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Sub-topic 43
2022 · National Preliminary
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True or false: protoplasmic respiration occurs only during carbohydrate/fat scarcity (starvation)
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Sub-topic 44
2022 · National Preliminary
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True or false: protoplasmic respiration occurs in the protoplasm (mitochondria)
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Sub-topic 45
2023 · National Preliminary
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The krebs cycle takes place in the mitochondrial matrix
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Sub-topic 46
2023 · National Preliminary
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Glycolysis takes place in the cytoplasm
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Sub-topic 47
2023 · National Preliminary
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Oxidative phosphorylation takes place at the inner mitochondrial membrane
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Sub-topic 48
2023 · National Quarterfinal
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Pyruvate is the final electron acceptor in lactic acid fermentation
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