Biology 5090 · O Level · Sexual reproduction in plants
Sexual reproduction in plants — practice question
Dry mass is the total mass of all chemicals in an organism apart from water. Fig. 2.1 shows the stages of seed germination. Fig. 2.1 also shows how the plant’s dry mass changes during these germination stages.
(a)[2]
What are the names of the structures labelled D and E in Fig. 2.1?
(b)[6]
Describe and explain how the dry mass changes at stages A, B and C in Fig. 2.1.
(c)[4]
Water is necessary for seed germination. State two other requirements for germination. Explain the role of each requirement.
Worked solution & mark scheme
This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Radicle or root” …