Relate branching, compactness and low solubility to the reversible storage of glucose in polysaccharides.
Tę umiejętność sprawdza 7 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Which property is shared by starch and cellulose in plant cells? A. Both consist exclusively of branched beta-glucose chains B. Both are the main energy-storage polymer of the cell wall C. Their large polymer molecules are poorly soluble in water D. Both are…
Living systems display diversity from molecules to communities. (a) Outline how the structures of starch and cellulose support their functions. (b) Describe adaptations through which forest plants obtain light. (c) Explain how natural selection brings about…
Consider connections between biological processes at different levels of organization. (a) Outline three properties of energy-storage polysaccharides that make them effective reserves. (b) Describe the transfer of energy along a food chain. (c) Explain why…
Nectar-feeding insects depend on flowering plants and can influence their evolution. (a) Outline links between the properties of glucose and its uses. (b) List human activities that threaten insect pollinators. (c) Explain how natural selection can produce…
The cyclic alpha and beta forms of glucose have the same molecular formula. Which structural distinction separates these two forms? A. A different number of hydroxyl groups B. The orientation of the hydroxyl group on carbon1 C. A different total number of…
The cyclic alpha and beta forms of glucose have the same molecular formula. Which structural distinction separates these two forms? A. A different number of hydroxyl groups B. The orientation of the hydroxyl group on carbon1 C. A different total number of…
Which statement correctly connects dietary starch to a human carbohydrate store? A. Starch is converted into amino acids before it can be stored B. Human cells store intact starch granules as their main reserve C. Starch digestion produces glucose that can be…
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