"Blooming and Fruiting" Life of Angiosperms PPT Courseware 5

"Blooming and Fruiting" Life of Angiosperms PPT Courseware 5

Review the past

1. The part where roots grow fastest is _______

2. The growth of roots depends on the increase in the number of cells in the ______ zone on the one hand, and the increase in the volume of cells in the ____ zone on the other.

3. Cells in the _____ area divide to produce new cells.

4. Are there meristems in the buds?

5. New branches develop from ___.

6. The growth of plants requires a variety of inorganic salts, of which the most needed are inorganic salts containing ____, ____, and ____.

1. Self-study

1 Flowers develop from _____.

2 A flower is made up of ____, ____, ____, ____, and _____.

3 Do you know which parts of the flower are most important for propagation?

4 There are many ways of pollination. Can you name two?

Two Quantitative Sciences

1 The pistil consists of three parts: ____, ____ and ____. Stamens include ____ and ____.

2 What structure in the flower does pollen come from?

3 The process of ______ falling from anthers to ________ is called pollination.

4 Apples, watermelons and grapes are ______ of plants, and watermelon seeds, peanuts, and almonds are ______ of plants.

5 Do you know which part of the flower will develop into a fruit in the future?

pollination and fertilization

1 When the anthers mature, they will split naturally and release pollen. The process of pollen falling from the anthers to the stigma of the pistil is called pollination.

2. There are various ways of pollination. Peach blossoms, pear blossoms, and rapeseed flowers not only have fresh colors and aromatic smells, but also have nectaries at the base of the ovary, which can attract insects; flowers such as corn, poplar, and willow do not have bright colors and aromas. The smell of pollen is abundant and light, easily blown away by the wind;

Summary 2

1 From flower to fruit, there are two processes: _______ and ______.

2 The process of ______ falling from anthers to ________ is called pollination.

3 Method of pollination: pollination through ______ or _______.

4 Briefly describe the process of fertilization.

4. Practical learning

1. During the flowering season of fruit trees, if you encounter continuous rainy weather, the yield of fruit trees will often be reduced. What is the reason?

This is because the pollination of fruit trees is affected. For example, fruit trees that rely on insect pollination have insufficient pollination due to restrictions on insect flight, resulting in reduced yields.

2. Some flowers do not bear fruit. For example, most of the flowers of cucumber, pumpkin, and loofah will not bear fruit. Please explain this phenomenon.

Because the flowers of these plants are divided into female flowers and male flowers, the male flowers will not bear fruit.

Five tests

1. A flower is composed of ___ ___ ___ ___ and ____ etc.

2. From flower to fruit, there are two processes: ____ and ____

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For more information about the PPT courseware "Blooming and Fruiting in the Lifetime of Angiosperms", please click the "Blooming and Fruiting in the Lifetime of Angiosperms" ppt tag.

"Blooming and Fruiting of Plants" PPT courseware:

"Blooming and Fruiting of Plants" PPT courseware

Part One Content: The Composition of Flowers

corolla

The crown is made of petals.

Different types of flowers have different sizes, colors and numbers of petals.

calyx

The calyx is the part that supports the petals. When it is not blooming...

"Blooming and Fruiting of Plants" PPT:

"Blooming and Fruiting of Plants" PPT Part One Content: Classroom Thinking Thinking: What is the meaning of plant flowering? Which part of the flower will develop into fruit in the future? Which structures in flowers are most important for plants to reproduce? 1. Flower structure stamens ..

"Blooming and Fruiting" Life of Angiosperms PPT Courseware 7:

"Blooming and Fruiting" Lifetime of Angiosperms PPT Courseware 7 Learning Objectives 1. What is the main structure of flowers 2. Describe the process of pollination and fertilization 3. Clarify the relationship between flowers, fruits and seeds 1. The structure of flowers The main structure of flowers is stamens and pistil. From flower to fruit requires experience...