"Structural Hierarchy of Plants" How cells constitute organisms PPT courseware 3

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"Structural Hierarchy of Plants" How cells constitute organisms PPT courseware 3

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From what structure does human growth and development begin?

What are the structural levels of animal bodies from micro to macro?

What is an organization?

What are organs?

Did you answer it correctly?

Human growth and development begins with a fertilized egg.

Structural levels of the animal body: cells → tissues → organs → systems → animal bodies (human bodies)

Tissues are groups of cells formed by cells with similar shapes, structures, and functions united together.

Different tissues come together in a certain order to form organs.

1. How many parts does the plant on the observation screen consist of?

These six major organs can be divided into two categories

Vegetative organs: related to the growth of plants. Such as: roots, stems, leaves

Reproductive organs: related to the reproduction of offspring by plants.

Such as: flowers, seeds, fruits

Meristem: refers to the tissue retained in the plant that has the ability to divide permanently.

Distribution: root tips, shoot tips, stem tips

Characteristics: small cells, thin cell walls, large nuclei,

The cytoplasm is dense and has a strong ability to divide.

Function: Continuously divide to produce new cells

practice

When you eat sugar cane, you first peel off the tough skin of the sugar cane stem; when you chew the sugar cane stem, there will be a lot of sweet juice; the residue left after chewing is spit out. From the perspective of tissues and organs, let’s talk about what tissues the sugarcane stem is composed of?

The tissues that make up the sugarcane stem include protective tissue, vegetative tissue, conductive tissue, etc.

If you pinch off the top of a branch, will the branch continue to grow? Why?

cannot. Because there is meristem tissue at the top of the branch, when the meristem tissue is pinched off, the cells cannot divide and increase in number, and the branch cannot continue to grow upward.

Consolidation exercise one

1. When eating watermelon, the edible “red” part of the melon pulp is ( )

A. A type of connective tissue

B. A nutritional tissue

C.an organ

D.a system

2. The skin of onions belongs to ( )

A.Protective organization

B. Nutritional tissue

C. Meristem

D. Guidance organization

3. The composition of green flowering plants is ( )

A. Cell → Organ → Tissue → Plant

B. Tissue → Organ → Cell → Plant

C. Cell → tissue → organ → plant body

D. Organ → tissue → cell → plant body

4. What plays a major role in the formation of an organization? ( )

A. Cell elongation

B. Cell growth

C. Cell division

D. Cell differentiation

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For more information about the PPT courseware "How cells constitute the structural hierarchy of living organisms and plants", please click on the How cells constitute the structural hierarchy of living organisms ppt and the structural hierarchy of plants ppt tag.

"Structural Levels of Plants" How cells constitute living organisms PPT courseware 6:

"Structural Levels of Plants" How Cells Constitute Organisms PPT Courseware 6 By studying this section, you will know 1. What are the tissues that make up plants? 2. What are the structural levels of plants? The growth and development of plants and animals are similar, and they also start from fertilized eggs..

"Structural Levels of Plants" How cells constitute living organisms PPT courseware 5:

"Structural Levels of Plants" How Cells Constitute Organisms PPT Courseware 5 Memory Link: ①What structure does human growth and development start from? ②How are the structural levels of animal bodies composed from micro to macro? ③What is an organization? ④What are organs? you..

"Structural Hierarchy of Plants" How cells constitute organisms PPT courseware 4:

"Structural Levels of Plants" How Cells Constitute Organisms PPT Courseware 4 Review the past and learn the new 1. What structure does human growth and development start from? 2. Describe the structural levels of the animal body (human) from micro to macro? 3. What is an organization? What are organs? 1. Plant...

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Update Time: 2024-10-01

This template belongs to biology courseware People's Education Edition seventh grade biology volume 1 industry PPT template

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