"Cell Division and Differentiation" PPT

Description

"Cell Division and Differentiation" PPT

Part One: Teaching Objectives:

knowledge and abilities

1. Describe the basic process of cell division.

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

3. Identify several basic tissues of animals and several basic tissues of plants.

4. Pay attention to the value of cell research in preventing and treating cancer.

Emotions, attitudes and values

Cultivate students' awareness of cooperation, communication, and expression.

Important points in teaching:

focus

1. Master the basic process of cell division.

2. The concept of organization and types of organizations.

difficulty

1. Explain the general changes in genetic material during cell division.

2. Describe cell division.

Cell division and differentiation PPT, Part 2: Cell division

Cell division causes the number of cells to _________. The volume of a newly divided cell is ________, and as the cell ________, its volume is ________. The number of cells is ________, the volume is ________, and the organism will continue to grow.

Schematic diagram of plant cell division process

The nucleus is first divided into two; then, the cytoplasm is divided into two parts, each containing a nucleus; finally, a new cell membrane is formed in the center of the original cell, and a new cell wall is formed.

Schematic diagram of animal cell division process

Clear up doubts:

1. The cell nucleus is divided into two, is the genetic material inside it also divided into two?

2. If not, how to achieve the stability of genetic material in the nucleus? What is the significance of this?

practice

1. Chromosomes exist in ( )

A cytoplasm B cell membrane

C nucleus D vacuole

2. What is related to the growth phenomenon of living organisms ( )

An increase in the number of A cells

Increase in B cell size

Increased number and size of C cells

D None of the above

Cell division and differentiation PPT, Part 3: Cell differentiation

Under normal circumstances, new cells produced after cell division, under the action of _______, have differences in their ____, ____ as the cells grow. This is cell differentiation. We call groups of cells with similar shapes, functions, and identical structures called ____.

Cell Differentiation

The process by which cells after division change in different directions in form, structure, and function.

Organization formation:

The result of cell differentiation is the formation of tissues

organize

A group of cells formed by many cells with similar morphology, structure and function, united together

practice

1. The process of organization formation is roughly expressed as ( )

A. Cell division → cell growth → cell differentiation → tissue

B. Cell differentiation → cell division → cell growth → tissue

C. Cell growth→Cell differentiation→Cell division→Tissue

D. Cell division → Cell differentiation → Cell growth → Tissue

2. The formation of various tissues is the result of cell differentiation.

Cell division and differentiation PPT, part 4: happiness detection

1. A seed can grow into a towering tree, a small fish in a pond can grow into a big fish, and organisms can grow from small to large. This is inseparable from what ( ).

A. Cell growth and reproduction B. Cell division and growth

C. Cell growth and differentiation D. Cell division and differentiation

2. The basis for organisms to grow from small to large, from simple to complex, from juvenile to mature is ( )

A. Cell growth and reproduction B. Cell division and growth

C. Cell growth and differentiation D. Cell division and differentiation

3. The epidermis of onion scale leaves belongs to ( ) tissue.

A.Nutrition B.Protection C.Meristematic D.Transduction

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

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

5. The nerve cells and muscle cells of the human body are completely different in shape. This is mainly because ( )

A. The result of continuous cell division B. The result of cell differentiation

C. The result of changes in cells themselves. D. The result of cell growth.

Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, cell division and differentiation PPT download, .PPT format;

For more information about the PPT courseware "Cells are the basic unit of life activities, cell division and differentiation", please click the cell is the basic unit of life activities ppt cell division and differentiation ppt tag.

"Cell Division and Differentiation" PPT download:

"Cell Division and Differentiation" PPT download Part One: Learning Objectives 1. Describe the basic process of cell division. 2. Overview Various tissues of organisms are formed by cell division and differentiation. 3. Identify several basic tissues of the human body and several main types of plants..

"Cell Division and Differentiation" PPT courseware:

"Cell Division and Differentiation" PPT Courseware Part One: Knowledge Review 1. The first person to discover a cell was _______. What he discovered was a dead cell. In fact, the cell was just a _______ structure. 2. The basic structure of cells includes _______, ___..

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Update Time: 2024-11-24

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

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