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Questions and Answers
What is the correct sequence of events in the fertilization process of flowers?
What is the correct sequence of events in the fertilization process of flowers?
Which of the following best describes grafting in plants?
Which of the following best describes grafting in plants?
How does coconut fruit facilitate its dispersal through water?
How does coconut fruit facilitate its dispersal through water?
What causes the cottony growth observed on bread and fruits during the rainy season?
What causes the cottony growth observed on bread and fruits during the rainy season?
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In plant layering, what is the critical feature of the branch used?
In plant layering, what is the critical feature of the branch used?
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Which of the following statements about zygotes is accurate?
Which of the following statements about zygotes is accurate?
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Which method is not associated with vegetative propagation?
Which method is not associated with vegetative propagation?
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What is the outcome of the fusion of male and female gametes in the ovule?
What is the outcome of the fusion of male and female gametes in the ovule?
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Study Notes
Sexual Reproduction in Plants
- Fertilization occurs when a pollen grain lands on the stigma of a flower.
- The pollen grain germinates, forming a pollen tube that grows through the style and reaches the ovary.
- The pollen tube releases male gametes, which fuse with female gametes inside the ovule, forming a zygote.
- The zygote divides repeatedly to form an embryo, which develops within the seed.
Propagation Techniques
- Grafting: Joining two plants together, a stem from one plant (scion) to the root system of another (stock).
- This technique is used to propagate improved cultivars of flowers and fruits, like mangoes, apples, and citrus fruits.
- Layering: Bending a branch towards the ground, covering a portion with soil, and leaving the tip exposed.
- As roots develop from the buried portion, the branch is cut from the parent plant, forming a new plant.
Water Dispersal
- Fruits with fibrous or spongy outer coverings are adapted for water dispersal.
- The coconut fruit's fibrous coat allows it to float and travel long distances.
Fungal Growth
- Bread mould, a type of fungus, is commonly observed on food items like bread and fruits when exposed to moisture for prolonged periods.
- Spores present in the air germinate and grow in moist environments, producing fungal growth.
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Description
Explore the fascinating processes of sexual reproduction in plants, including fertilization and zygote formation. Additionally, learn about propagation techniques such as grafting and layering, which are essential for cultivating new plants. This quiz will deepen your understanding of how plants reproduce and spread.