Explain how changing fatty acid composition helps membranes remain functional at different temperatures.
Tę umiejętność sprawdzają 3 zadania wzorowane na arkuszach IB z lat 2025–2026.
Biologia IBPaper 2, maj 2026, TZ1wzorowane16 pktotwartetrudne (szac.)
An animal’s survival depends on how its structures and behaviour fit its surroundings. (a) Outline how animal membranes can maintain suitable fluidity in habitats with contrasting temperatures. (b) Describe adaptations that allow herbivores to obtain plant…
Biologia IBPaper 2, maj 2025, TZ2wzorowane1 pktotwarteśrednie (szac.)
Outline how fatty-acid saturation influences membrane fluidity.
Biologia IBPaper 1A, listopad 2025, TZ3wzorowane1 pktzamkniętełatwe (szac.)
A cell adjusts its membrane lipids during sustained cold conditions. Which change helps maintain fluidity without requiring a change in protein abundance? A. More peptide bonds in phospholipids B. Replacement of all phospholipids by cellulose C. More saturated…