"Cell Differentiation to Form Tissue" PPT courseware

Description

"Cell Differentiation to Form Tissue" PPT courseware

Part One: Teaching Objectives

Knowledge goal

Overview Various tissues of organisms are formed by cell division and differentiation.

Competence goals

1. Identify several basic tissues of plants.

2. Identify several basic tissues of the human body.

3. Observe the tissues of organisms.

Emotion goal

Develop a scientific attitude of seeking truth from facts by observing the process of organizing pictures.

teaching method:

Make abstract knowledge visual and easy to understand through multimedia courseware display

Cell differentiation forms tissue PPT, part 2 content: Cell division process:

Cell division is the process by which a cell divides into _______ cells. The process of division is that _______ is first divided into two, and then _______ is divided into two parts, each containing one _______, and a new _______ is formed in the center of the original cell; plant cells finally form new _______ . So one cell formed two cells.

Question: What are the consequences of chromosomal changes during cell division?

1. The substances in the nucleus that are easily stained darkly by basic dyes are: chromosomes

2. The most obvious changes during cell division are: chromosomes

3. Do new cells have the same number of chromosomes as the original cells?

4. What significance does the average distribution of chromosomes in the cell nucleus have on the existence of species in nature?

Genetic material remains unchanged, species remains unchanged

Cell differentiation forms tissue PPT, part three: cell differentiation

Cell differentiation: Cell differentiation is the process of further forming cell groups of different shapes and structures based on cell division and growth.

Epithelial tissue: The cells are tightly arranged and there is little intercellular substance; it has functions such as protection and secretion.

Connective tissue: Large intercellular spaces and abundant intercellular substance; it has functions such as nutrition, connection, support and protection. Bone tissue and blood are all connective tissues.

Muscle tissue: Mainly composed of muscle cells, with the functions of contraction and relaxation, it can be divided into three types: skeletal muscle, smooth muscle, and cardiac muscle.

Nervous tissue: Mainly composed of nerve cells. When nerve cells are stimulated, they can generate and conduct excitement.

main tissues of animal body

Epithelial tissue: composed of epithelial cells, with protective and secretory functions

Muscle tissue: It is composed of muscle cells and has contraction and relaxation functions.

Nervous tissue: Mainly composed of nerve cells, capable of generating and conducting excitement.

Connective tissue: support, connection, protection, nutrition and other functions

Cell differentiation forms tissue PPT, part 4 content: after-class exercises

1. Cell differentiation refers to ( )

A. The process of one cell dividing into two cells

B. Increase in cell number and cell volume

C. The process of the new daughter cells gradually growing up

D. The process by which cells transform from their original form, structure and function to other forms, structures and functions.

2. Blanch tomatoes with boiling water and a layer of skin will be torn off on the surface. This layer of skin belongs to ( )

A. Protective tissue B. Mechanical tissue C. Nutritional tissue D. Transmission tissue

3. The formation of apple peel is ( )

A. The result of apple skin cell division B. The result of apple skin cell growth

C. The result of apple cell division and growth D. The result of apple cell differentiation

4． Among the following tissues, the one that is not the main tissue of plants is ( )

A. Protective tissue B. Epithelial tissue C. Nutritional tissue D. Meristem tissue

5. Among the following tissues, the one that cannot exist in the same organ with other tissues at the same time is ( )

A. Protective tissue B. Epithelial tissue

C. Nervous tissue D. Connective tissue

6. The formation of organizations is the result of ( ).

A. Cell meristem B. Cell growth

C. Cell division D. Cell differentiation

Keywords: Beijing Normal University version of the seventh-grade biology PPT courseware for free download, cell differentiation and tissue formation PPT download, .PPT format;

For more information about the PPT courseware "The Structural Levels of Organisms, Cell Differentiation Forms Tissues", please click the Structural Levels of Organisms ppt Cells Differentiate to Form Tissues ppt tag.

"Cell Differentiation to Form Tissue" PPT:

"Cells Differentiate to Form Tissues" PPT Part One: Situation Introduction Review and Recall: Can you try to describe the process of cell division? Cell division process: Cell division is the process of dividing a cell into _______ cells. The process of division is ______ first..

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Update Time: 2024-10-11

This template belongs to biology courseware Beijing Normal University Edition Seventh Grade Biology Volume 1 industry PPT template

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