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Plant Reproduction. FernsFerns Fern Reproduction The reproduction process of a fern requires moisture. As a result, they can only reproduce where there.

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Presentation on theme: "Plant Reproduction. FernsFerns Fern Reproduction The reproduction process of a fern requires moisture. As a result, they can only reproduce where there."— Presentation transcript:

1 Plant Reproduction

2 FernsFerns

3 Fern Reproduction The reproduction process of a fern requires moisture. As a result, they can only reproduce where there is sufficient moisture.

4 Fern Reproduction

5 Seed Plants

6 Two types of seed plants Gymnosperms Angiosperms Cone Bearing Plants Flowering Plants

7 Gymnosperms “ Naked Seeds” Seeds produced in a cone They do not produce fruit.

8 Gymnosperms “ Naked Seeds” Male Cones Found higher on trees Contain pollen

9 Gymnosperms “ Naked Seeds” Female Cones Found lower on trees Open to take in pollen Close for germination Open again to release seeds.

10 Angiosperms Flowering plants that produce seeds in fruit. Seeds are covered with a seed coat.

11 Angiosperms There are 2 key features of angiosperms. 1. Flowers 2. Fruits

12 Flower Structure and Function

13 What are flowers for? Flowers are the reproductive organs of angiosperms.

14 Flower Structure

15 Female Reproductive Structure Pistil (Carpal)  Stigma Sticky top for trapping pollen.  Style Stalk connecting the stigma and to the ovary  Ovary Filled with Ovules (eggs)

16 Flower Structure Female Reproductive Structure Pistil (Carpal)  Fertilized ovules will become seeds  Ovaries become fruits

17 Flower Structure Male Reproductive Structure Stamen  Anther Pad covered with sticky or barbed pollen  Filament Stalk holding up anther

18 Flower Structure Sepals  Outermost floral parts  Are often green and look like ordinary leaves  Protect the developing flower

19 Flower Structure Petals  Found just inside the sepals  Often brightly colored to attract pollinators ( ex: insects and birds)

20 Types of Flower Some flowers can be missing some parts.

21 Types of Flowers CompleteIncomplete Have all flower organs  Sepals  Petals  Stamen  Pistol Missing one or more of these organs

22 Types of Flowers PerfectImperfect Have all reproductive structures  Stamen (male)  Pistol (female) Missing one of the reproductive structures

23 Pollination Pollination is the transfer of pollen (male gamete) from the anther to a stigma (part of the pistol).

24 Pollination Pollination can be accomplished by the wind or by animals. Insects are the most common animals that will pollinate a pistol.

25 1. When a pollen grain reaches the stigma, it sticks and begins to grow a “root”. Creation of a seed 2. The root of the pollen continues down the style until it reaches the ovary. 3. When it reaches the seed, it fuses with it and creates a fertilized seed.

26 FruitsFruits  Mature, ripened ovary  For protection and dispersal of seeds  Mature, ripened ovary  For protection and dispersal of seeds

27 Types of Fruits SimpleAggregateMultiple

28 Types of Angiosperms Types of Angiosperms There are two types of angiosperms 1.Monocots & 2. Dicots 2. Dicots

29 What do monocot and dicot mean? Mono = Mono = One Di = Di = Two One Two Cot refers to the term cotyledon This is the first leaf or leaves produced by a sprouting plant

30 Monocots vs. Dicots Monocots Dicots 1 cotyledon 2 cotyledons

31 Monocots vs. Dicots Monocots Dicots Leaves with parallel veins Leaves with branched veins

32 Monocots vs. Dicots Monocots Dicots Flower parts in multiples of 3 Flower parts in multiples of 4 or 5

33 Monocots vs. Dicots Monocots Dicots Fibrous root systemsTap

34 Monocots vs. Dicots Monocots Dicots Usually grassy plants Usually Usually non –grassy non –grassy Branching stems Branching stems May be woody May be woody

35 Monocots vs. Dicots Monocots Dicots CornCorn GrassGrass DaisiesDaisies BeansBeans Palm Trees Oak Trees

36


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