"The Composition of Multicellular Organisms" PPT courseware

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"The Composition of Multicellular Organisms" PPT courseware

Part One: Review the past and learn the new

1. The basic unit of life activities of living organisms is ______.

2. A group of cells with similar shape, same structure, and certain functions is called ______.

3. Different tissues are the result of cells ______.

4. What tissues do the epidermis and mesophyll of leaves belong to, and what tissues do the vessels and sieve tubes in the leaf veins belong to?

5. If your skin is accidentally scratched, you will feel pain and bleed. What types of tissues does this indicate that skin may contain?

The composition of multicellular organisms PPT, Part 2 content: The composition of multicellular plants

Observe and think

1. What kinds of tissues are tomatoes made of?

2. Are these organizations arranged in a certain order?

3. Does tomato have certain functions?

Different tissues are combined in a certain order to form a structure with a certain function, called an organ

Green flowering plants (angiosperms) are common multicellular plants, consisting of six organs: roots, stems, leaves, flowers, fruits, and seeds. Each organ has a certain function.

think about it

Roots, stems, leaves, flowers, fruits, seeds, what are the functions of these organs?

vegetative organs

Roots absorb water and inorganic salts from the soil

Stem transports water, inorganic salts and organic matter

Leaf photosynthesis, production of organic matter

reproductive organs

Flowers form fruits after they wither

Fruit contains seeds

Seeds sowing new seedlings

The composition of multicellular organisms PPT, the third part: the composition of the human body

Some organs in the human body:

Multiple organs that can jointly complete one or several physiological functions are combined in a certain order to form a system.

What is a system?

Different organs of the human body are combined in a certain order to form a structure with specific physiological functions, which is called a system.

For example: the oral cavity, pharynx, esophagus, stomach and intestines are all digestive organs. They are connected in a certain order to complete the functions of digestion and absorption, forming a digestive system.

PPT on the composition of multicellular organisms, part 4: practice

1. Among the following plant organs, which ones are reproductive organs ( )

A. Begonia leaves

B. Rice seeds

C. Willow stem

D. Wheat roots

2. The skin of onions belongs to ( )

The human stomach belongs to ( )

A. Cell B. Tissue

C.organ D.system

3. Apple is one of the common fruits. Do you know the structural layers of the apple tree ( )

A. Cells → Organs → Tissues → Human body

B. Cell → Organ → Tissue → System → Human Body

C. Cell → tissue → organ → individual

D. Cell → Tissue → Organ → System → Individual

Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, composition of multicellular organisms PPT download, .PPT format;

For more information about the PPT courseware "The Composition of Organisms and the Composition of Multicellular Organisms", please click the "Composition of Organisms PPT" and "The Composition of Multicellular Organisms" PPT tags.

"Composition of Multicellular Organisms" PPT:

"The Composition of Multicellular Organisms" PPT Part One Content: Structural Levels of Plants Several Main Tissues of Plants (Review) Epidermal cells on the surfaces of roots, stems, and leaves constitute protective tissues and have the function of protecting the tender internal parts. Roots, stems, leaves, flowers, fruits...

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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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