Cambridge Primary Science 5 Unit 1 Workbook Answers

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10 Questions

What part of the flower contains the eggs?

Ovary

Which color flowers do insect pollinators visit most often?

Yellow

How are seeds spread by animals?

Eaten

What helps the seeds blow away in the wind?

Parachute of hairs

Why do seeds with a larger surface area stay in the air longer?

Air pushing upwards

What is the purpose of the bright colors of the petals in flowers?

To attract insects

Where is the pollen produced in a flower?

Anther

What is the male part of a flower called?

Anther

What happens inside the ovary during fertilization?

Pollen and egg join together

What part of the flower becomes the fruit?

Ovary

Study Notes

Flower Structure and Pollination

  • The ovary contains the eggs in a flower.
  • Insect pollinators visit flowers with UV-reflecting colors, such as yellow and blue, most often.
  • Seeds are spread by animals through ingestion and subsequent deposition in a new location.
  • The feathery or hairy structures of seeds, such as pappi or coma, help them blow away in the wind.
  • Seeds with a larger surface area stay in the air longer due to increased air resistance.
  • The bright colors of the petals serve to attract pollinators, such as insects and animals.
  • Pollen is produced in the anther of a flower.
  • The male part of a flower is called the stamen.
  • During fertilization, the sperm fertilizes the egg cell inside the ovary, resulting in zygote formation.
  • The ovary of a flower becomes the fruit after fertilization.

Test your knowledge of Unit 1 'Life cycles of flowering plants' from the Cambridge Primary Science 5 Teacher’s Resource workbook. Check your understanding of topics such as flowering and non-flowering plants, pollination, fruits, and seeds.

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