"Conduction Function of Plant Stems" PPT courseware

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"Conduction Function of Plant Stems" PPT courseware

Part One: Classroom Questions

Stems are the above-ground branches of most plants, connecting roots and leaves. Stems, also called branches or branches, develop from buds.

question:

1. What do the main trunk and side branches of plants develop from?

2. How many types of buds are there?

3.What parts does a branch bud consist of? What will they develop into in the future?

Type of buds

Branch buds - buds that will develop into branches

Flower bud - a bud that will develop into a flower

Mixed buds - contain leaf buds and flower buds that will develop into branches, leaves and flowers in the future

PPT on the conduction function of plant stems, part 2: development of branch buds into stems

1. Structure and development of branch buds

think about it

1. What is the function of the outer part of the bark? What is the inner part? What's the structure inside? What organization does it belong to?

2. The xylem makes the plant stem very strong. What is the structure inside it? What organization does it belong to?

3. The lighter color in the center is the marrow. Its cells are relatively large. What are their functions? What organization does it belong to?

4. What is the structure between xylem and phloem called? What are the characteristics? What organization is it?

PPT on the conduction function of plant stems, part 3: exercises:

1. "The jasper is as high as a tree, with thousands of green silk ribbons hanging down. I don't know who cut out the thin leaves. The spring breeze in February is like scissors." This is a famous line in "Ode to the Willow" by He Zhizhang, a famous poet of the Tang Dynasty. From which part of the structure do thousands of branches and their green leaves develop? ( )

A. Root B. Stem C. Leaf D. Branch bud

2. Which of the following descriptions of the structure of the stem is correct ( )

A. All plants can form growth rings

B. The sieve tubes of xylem play a conductive role

C. The marrow has the function of storing nutrients

D. The vessels are located in the phloem inside the bark.

3. After the storm, the big tree was uprooted, but the trunk was not broken. This is because ( )

A. Well-developed xylem B. Well-developed pith C. Well-developed phloem D. Thick bark

Keywords: Jiangsu Education Edition seventh-grade biology PPT courseware free download, PPT download of the conduction function of plant stems, .PPT format;

For more information about "The Life of Green Plants and the Transport Function of Plant Stems" PPT courseware, please click the "The Life of Green Plants ppt Transport Function of Plant Stems" ppt tag.

"Conduction Function of Plant Stems" PPT download:

"Conduction Function of Plant Stems" PPT Download Types of buds Branch buds - buds that will develop into branches in the future Flower buds - buds that will develop into flowers in the future Mixed buds - contain leaf buds and flower buds, and the structure and structure of branches, leaves and flower buds that will develop in the future Developing young leaf bud primordium new bud bud axis..

"Conducting Function of Plant Stems" PPT:

"Conduction Function of Plant Stems" PPT Part 1 Content: Learning Objectives 1. State the main structures of branch buds including meristems, young leaves, bud rachis and bud primordia, as well as the relationship between branch buds and stems; 2. Explain The basic structure of the stem is composed of bark, cambium, xylem and pith..

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Update Time: 2024-09-07

This template belongs to biology courseware Jiangsu Education Edition Seventh Grade Biology Volume 1 industry PPT template

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