Reproduction in Flowering Plants: Fertilisation, Pollination, Fruits, Seeds, Dispersal, Germination and Vegetative Propagation

Generated from prompt:

FLOWERS 2. Pollination and types. 1. Fertilisation in flowering plants 3. Fruit and types of fruit 4. Structure of seeds and functions of seeds parts 5. Fruits. And. Seed dispersal 6. Seed germination 7. Vegetative propagation generate 12 slides using this

This educational presentation provides a comprehensive overview of reproduction in flowering plants. It covers key processes including double fertilisation, types of pollination (self and cross with agents like wind, insects, and birds), fruit formation and classification (simple fleshy, dry, aggregate, multiple), seed structure and functions (testa, cotyledons, radicle, plumule), seed dispersal mechanisms, germination stages, and vegetative propagation methods. Designed for biology learners with diagrams, tables, and clear bullet points.

May 13, 202612 slides

Slide 1 of 12

Slide 1 - Reproduction in Flowering Plants

Reproduction in Flowering Plants

Fertilisation, Pollination, Fruits, Seeds, Dispersal, Germination & Vegetative Propagation

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Photo by Bryan Dickerson on Unsplash

Slide 1 - Reproduction in Flowering Plants

Slide 2 of 12

Slide 2 - Presentation Agenda

1. Fertilisation in Flowering Plants
2. Pollination and Types
3. Fruit and Types of Fruit
4. Structure of Seeds and Functions of Seed Parts
5. Fruits and Seed Dispersal
6. Seed Germination
7. Vegetative Propagation

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Photo by Vijay B on Unsplash

Slide 3 of 12

Slide 3 - Section 1

Fertilisation in Flowering Plants

The fusion of gametes leading to seed formation

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Photo by Ayush Kumar on Unsplash

Slide 4 of 12

Slide 4 - Process of Fertilisation

Pollen grain germinates on stigma
Pollen tube grows through style to ovule
Double fertilisation: one sperm fuses with egg to form zygote (embryo)
Second sperm fuses with polar nuclei to form endosperm
Zygote develops into embryo, ovule into seed

Slide 5 of 12

Slide 5 - Double Fertilisation

Unique process in angiosperms
Syngamy: sperm + egg → zygote (2n)
Triple fusion: sperm + polar nuclei → endosperm (3n)
Ensures nutrition for embryo

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Photo by Ayush Kumar on Unsplash

Slide 6 of 12

Slide 6 - Section 2

Pollination and Types

Mechanism for pollen transfer in flowering plants

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Photo by Simon Ray on Unsplash

Slide 7 of 12

Slide 7 - Types of Pollination

Self-pollination: within same flower or plant (autogamy, geitonogamy)
Cross-pollination: between different plants (xenogamy)
Agents: Wind (anemophily), Insects (entomophily), Water (hydrophily), Birds (ornithophily), Bats (chiropterophily)

Slide 8 of 12

Slide 8 - Self vs Cross Pollination

Self-Pollination Pollen from same flower/plant Advantages: Reliable, economical Disadvantages: Less genetic variation

Cross-Pollination Pollen from different plant Advantages: Increases diversity Disadvantages: Depends on agents, energy cost

Slide 9 of 12

Slide 9 - Section 3

Fruit and Types of Fruit

Mature ovary protecting seeds

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Photo by Jakub Kapusnak on Unsplash

Slide 10 of 12

Slide 10 - Types of Fruits

Type	Description	Examples
Simple Fleshy	Single pistil, juicy pericarp	Berry (tomato), Drupe (mango), Pome (apple)
Simple Dry	Single pistil, dry pericarp	Achene (sunflower), Legume (pea), Caryopsis (wheat)
Aggregate	Multiple carpels from one flower	Raspberry, Strawberry
Multiple (Composite)	Multiple flowers	Pineapple, Fig