IGCSE Biology Paper-3: Specimen Questions with Answers 294 - 296 of 358

Passage

Fig. is a diagram showing the events from pollination to fertilization in a species of flowering plant.

Structure of Plant

Question 294 (4 of 6 Based on Passage)

Edit

Write in Short

Short Answer▾

Name the likely method of pollination for the flowers shown at P in Fig. Explain your choice.

Method of pollination. .

explanation. . . .

Explanation

Geitonogamy

Geitonogamy is a kind of pollination in which the pollen from the anthers of one flower are transferred to the stigma of another flower borne on the same plant. It usually occurs in plants which show monoecious condition (unisexual, male, and female flowers are borne on the same plant) . Geitonogamy involves two flowers but these belong to the same parent plant.

Example: Maize

Pollen Transfer between Flowers

Question 295 (5 of 6 Based on Passage)

Edit

Write in Short

Short Answer▾

Seed formation occurs after fertilization. Seeds are formed inside the fruits and then dispersed.

State an advantage of seed dispersal.

Explanation

Seed Dispersal Has Several Advantages for the Plant

  • protection from predation
  • better survival areas

  • less competition

Question 296 (6 of 6 Based on Passage)

Edit

Write in Short

Short Answer▾

Seed formation occurs after fertilization. Seeds are formed inside the fruits and then dispersed.

(i) Name the part of the flower that develops into the seed.

(ii) Name the part of the flower that develops into the fruit.

Explanation

  • Ovule develops into seed.
  • Ovary wall develops into fruit.

Pea Flower and Pod