SOLUTION: Plant reproduction worksheet - Studypool - Free Printable

Plant Reproduction Worksheet

#### Holt Page 270 Flowers

1. Flowers are adaptations for:
- Answer: Reproduction

2. (Read caption) The stamen produces the ________ and the pistil produces the ________.
- Answer: The stamen produces the pollen and the pistil produces the ovules/seeds.

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#### Holt Page 280-281 Reproduction of Flowering Plants

3. Circle any of the following statements that are NOT true.
- a) Fertilization takes place within the flower.
- True: Fertilization occurs inside the flower, specifically in the ovule.
- b) Flowers produce seeds.
- True: After fertilization, the ovules develop into seeds.
- c) Flowers do not produce fruit.
- False: Flowers produce fruit after fertilization. The ovary of the flower develops into fruit.

- Correct Answer: Circle c).

4. Number the steps 1st, 2nd, and 3rd.
- Step 1: Pollen lands on the stigma.
- Step 2: A pollen tube grows down through the style to the ovary.
- Step 3: A sperm cell fuses with an egg in the ovule.

- Correct Order:
1. Pollen lands on the stigma.
2. A pollen tube grows down through the style to the ovary.
3. A sperm cell fuses with an egg in the ovule.

5. Mark as true or false. If false, correct the sentence.
- a) Each pod contains one seed.
- False: Pods typically contain multiple seeds.
- Corrected Sentence: Each pod contains multiple seeds.
- b) The pod travels from plant to plant.
- False: Pods do not travel; they remain attached to the plant until dispersal mechanisms (e.g., wind, animals) move the seeds.
- Corrected Sentence: Seeds inside the pod may be dispersed by wind, animals, or other means.
- c) The pod becomes the seed.
- False: The pod is the structure that encloses the seeds, but it does not become the seed itself.
- Corrected Sentence: The pod protects and encloses the seeds.
- d) The ovary becomes the pod.
- True: After fertilization, the ovary develops into the pod (fruit).

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#### Holt Page 299 What’s So Great About Seeds?

6. What is the name of the form of an animal that is just starting to develop? (Hint: The animal versions all look similar due to common ancestry.)
- Answer: Embryo

7. List the 3 parts of a seed:
- Answer:
1. Seed coat
2. Embryo
3. Food storage tissue (e.g., endosperm or cotyledons)

8. What nourishes the young plant as it just begins to grow (germinate)?
- Answer: The food stored in the seed (endosperm or cotyledons) nourishes the young plant during germination.

9. Read the 'Environmental Science Connection' caption. Why do some seeds need to be eaten to grow?
- Answer: Some seeds require passage through an animal's digestive system to break their hard outer coating or to disperse them to new locations. This process helps in seed germination and ensures the plant's survival by spreading its offspring to different areas.

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Final Answers:

1. Reproduction
2. Pollen, ovules/seeds
3. Circle c): Flowers do not produce fruit.
4.
1. Pollen lands on the stigma.
2. A pollen tube grows down through the style to the ovary.
3. A sperm cell fuses with an egg in the ovule.
5.
- a) False: Each pod contains multiple seeds.
- b) False: Seeds inside the pod may be dispersed by wind, animals, or other means.
- c) False: The pod protects and encloses the seeds.
- d) True
6. Embryo
7. Seed coat, embryo, food storage tissue
8. Food stored in the seed (endosperm or cotyledons)
9. Some seeds need to be eaten to grow because the digestive process can break their hard outer coating or help disperse them to new locations, aiding in germination and survival.

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Boxed Final Answer:

\boxed{
\text{See detailed answers above.}
}