Which structures make up a plant's stamen?

  1. The anther.
  2. The filament.

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Which structures make up a plants carpel? 

  1. Stigma.
  2. Style.
  3. Ovary.

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What is the role of a plants anther?

To produce pollen.

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What is pollen?

Pollen is a plant's male gamete - basically the equivalent of sperm in animals. 

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What is the role of a plants stigma?

To collect pollen grains.

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What is a plant ovary?

The structure that contains the ovules.

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What are plant ovules?

Ovules are a plant's female gametes - basically the equivalent of eggs in animals.

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What is pollination?

Pollination is the process by which pollen grains pass from the anther of one flower to the stigma of another flower.

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What are the two types of pollination?

1Self-pollination.


2Cross-pollination.

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What is self-pollination?

Self-pollination is the transfer of pollen grains from an anther to a stigma of the same plant.

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What is cross-pollination?

Cross-pollination is the transfer of pollen grains from an anther of one plant to a stigma of a different plant.

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What are the two methods by which cross-pollination can occur?

1Insect pollination.


2Wind pollination.

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Name 5 ways a plant might be adapted for insect pollination.

  1. Brightly coloured petals to attract insects.
  2. Nice scents to attract insects.
  3. Nectaries that produce sugar nectar to attract insects.
  4. Big sticky pollen grains that stick to insects easily.
  5. Sticky stigmas, so any pollen grains that rub off of insects stick to the plant's stigma.

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Name 4 ways a plant might be adapted for wind pollination.

  1. Small light pollen grains that easily get blown long distances by the wind.
  2. Long filaments so that the anthers hang out of the flower, and pollen can be blown away more easily.
  3. Feathery stigmas that easily trap lots of passing pollen grains.
  4. Smaller, less bright petals, and less strong scents and no nectaries - the flowers don't need to attract insects.

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