Pollination and Fertilisation — Correct the Explanation (Year 5 ... - Free Printable

Task: Identify and Correct Errors in the Explanation of Flower Fertilization

The provided text contains 13 errors. We will go through each sentence, identify the errors, and provide corrections using the vocabulary box.

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#### Sentence 1:
> "A flower stem opens, often displaying brightly coloured sepals and releasing a strong sound to make it attractive to ducks."

- Error 1: "flower stem opens" — The flower itself opens, not the stem.
- Correction: Replace "stem" with "flower."

- Error 2: "sepals" — Sepals are not brightly colored; petals are.
- Correction: Replace "sepals" with "petals."

- Error 3: "releasing a strong sound" — Flowers do not release sounds; they release scents.
- Correction: Replace "strong sound" with "scent."

- Error 4: "to make it attractive to ducks" — Flowers attract pollinators like bees, butterflies, or birds, not ducks.
- Correction: Replace "ducks" with "pollinators."

Corrected Sentence 1:
"A flower opens, often displaying brightly colored petals and releasing a strong scent to make it attractive to pollinators."

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#### Sentence 2:
> "A pollinator (such as a bee, bird, bat, moth or beetle) lands on the leaf to collect nectar."

- Error 5: "lands on the leaf" — Pollinators land on the flower, not the leaf.
- Correction: Replace "leaf" with "flower."

Corrected Sentence 2:
"A pollinator (such as a bee, bird, bat, moth, or beetle) lands on the flower to collect nectar."

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#### Sentence 3:
> "Whilst collecting the nectar, the pollinator (e.g. bee) brushes against the female part of the flower and nectar transfers to the pollinator's body."

- Error 6: "nectar transfers to the pollinator's body" — Pollen transfers to the pollinator's body, not nectar.
- Correction: Replace "nectar" with "pollen."

Corrected Sentence 3:
"While collecting the nectar, the pollinator (e.g., bee) brushes against the female part of the flower, and pollen transfers to the pollinator's body."

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#### Sentence 4:
> "The pollinator moves around the flower or to another flower of a different species. The pollen rubs off the pollinator and onto the anther, which is the top of the female part of the flower. This is called fertilisation."

- Error 7: "another flower of a different species" — Pollination can occur within the same species or between different species, but this sentence implies only different species, which is incorrect.
- Correction: Remove "of a different species" or generalize it.

- Error 8: "anther" — The anther is the male part of the flower where pollen is produced. Here, it should be the stigma, which is the female part.
- Correction: Replace "anther" with "stigma."

- Error 9: "This is called fertilisation" — The transfer of pollen to the stigma is called pollination, not fertilization. Fertilization occurs later when the sperm from the pollen reaches the ovule.
- Correction: Replace "fertilisation" with "pollination."

Corrected Sentence 4:
"The pollinator moves around the flower or to another flower. The pollen rubs off the pollinator and onto the stigma, which is the top of the female part of the flower. This is called pollination."

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#### Sentence 5:
> "The sex cell from the pollen grain moves from the stigma, down the filament, and into the ovary, where it fuses with an ovule. The meeting of ovule and pollen is called pollination."

- Error 10: "down the filament" — The filament is part of the male structure (stamen), not the female structure. The pollen tube grows through the style, not the filament.
- Correction: Replace "filament" with "style."

- Error 11: "The meeting of ovule and pollen is called pollination" — The meeting of the ovule and pollen is called fertilization, not pollination.
- Correction: Replace "pollination" with "fertilization."

Corrected Sentence 5:
"The sex cell from the pollen grain moves from the stigma, down the style, and into the ovary, where it fuses with an ovule. The meeting of ovule and pollen is called fertilization."

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#### Sentence 6:
> "The fertilised ovule grows into a seed."

- Error 12: "The fertilised ovule grows into a seed" — While this is partially correct, it is incomplete. The fertilized ovule develops into an embryo, and the ovary develops into the fruit that contains the seed.
- Correction: Add clarification about the ovary developing into the fruit.

Corrected Sentence 6:
"The fertilized ovule develops into an embryo, and the ovary develops into the fruit, which contains the seed."

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Final Corrected Text:

1. A flower opens, often displaying brightly colored petals and releasing a strong scent to make it attractive to pollinators.
2. A pollinator (such as a bee, bird, bat, moth, or beetle) lands on the flower to collect nectar.
3. While collecting the nectar, the pollinator (e.g., bee) brushes against the female part of the flower, and pollen transfers to the pollinator's body.
4. The pollinator moves around the flower or to another flower. The pollen rubs off the pollinator and onto the stigma, which is the top of the female part of the flower. This is called pollination.
5. The sex cell from the pollen grain moves from the stigma, down the style, and into the ovary, where it fuses with an ovule. The meeting of ovule and pollen is called fertilization.
6. The fertilized ovule develops into an embryo, and the ovary develops into the fruit, which contains the seed.

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Final Answer:

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\boxed{13 \text{ errors corrected}}
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