Biology 5090 · O Level · Sexual reproduction in plants
Sexual reproduction in plants — practice question
A pea seed is placed in a pot of soil and kept under the ideal conditions needed for germination.
The pot is then left in a dark room for 10 days.
Fig. 1.1 shows how the germinating seed appears on different days.
(a)[3]
Describe the environmental conditions necessary for seed germination.
(b)[5]
Fig. 1.1 shows the seed altering between day 1 and day 4. Describe these changes and explain why they occur.
(c(i))[1]
Name the seed part from which X developed.
(c(ii))[2]
The seed is germinating in the dark. Explain why X and Y grow in opposite directions.
Worked solution & mark scheme
This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: “suitable warmth” …