"Structural Hierarchy of Animal Bodies" How cells constitute living organisms PPT courseware 6

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"Structural Hierarchy of Animal Bodies" How cells constitute living organisms PPT courseware 6

Question: The growth of animals and humans starts from one cell. What kind of cell is it? What changes does it undergo to become multiple cells?

The cells formed by the division of fertilized eggs are only spherical, but there are many types of cells in human and animal bodies, and their shapes are not exactly the same. Where did these cells come from?

Cell Differentiation

Later, most cells lose the ability to divide. During the development process, they gradually change in shape and structure. This process is called differentiation.

cells differentiate into tissues

Concept: A group of cells formed by cells with similar shapes, structures, and functions united together is called a tissue.

Exercise 1: During the development process of cells, cells gradually change in shape, structure and function. This process is called:

A. Cell division B. Cell differentiation

C. Cell growth D. Cell mutation

Exercise 2: Organization formation is:

A. The result of cell division

B. The result of cell growth

C. The result of cell division and growth

D. The result of cell differentiation

Exercise 3: The protective tissues in the human body are:

A. Epithelial tissue B. muscle tissue

C. Nervous tissue D. connective tissue

Exercise 4: Organizations with functions such as support, connection, protection, nutrition, etc. are:

A. Epithelial tissue B. Muscle tissue

C. Nervous tissue D. Connective tissue

3. Organ system and human body

What is the function of the stomach? Can only the stomach complete digestion?

What other structures complete the digestive function together with it?

Oral cavity, pharynx, esophagus, stomach, intestines...

Liver, saliva...

From this, we have to think about: What do multiple organs constitute?

System: Multiple organs that can perform one or several physiological functions are combined in a certain order to form a system.

Class exercises:

1. Tissues are formed by many __________ similar, __________, __________ identical cells united together. Different __________ are united in a certain order to form structures with certain functions called organs. The system is composed of multiple organs that can jointly complete _______________ physiological functions according to a certain __________.

2. What plays a major role in the formation of an organization is

A. Cell elongation

B. Cell growth

C. Cell division

D. Cell differentiation

Test it!

Which of the following statements about organizations is correct... ( )

A The formation of tissue is the result of cell division and differentiation

B The formation of tissue is the result of cell division and growth

C The cells that make up the tissue have the same shape, structure and function

D Fertilized eggs can directly form tissues through division

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

"Structural Levels of Animal Bodies" How cells constitute living organisms PPT courseware 5 Think about it. The growth of flatfish starts with one cell. What kind of cell is it? What changes did this cell undergo to become a flatfish (cell group)? Cell Differentiation:..

"Structural Levels of Animal Bodies" How cells constitute living organisms PPT courseware 4:

"Structural Levels of Animal Bodies" How Cells Constitute Organisms PPT Courseware 4 Cell Differentiation Later, most cells lost the ability to divide. During development, they undergo differential changes in morphology, structure and physiological function. This process is called cell differentiation. ..

"Structural Levels of Animal Bodies" How cells constitute living organisms PPT courseware 3:

"Structural Levels of Animal Bodies" How Cells Constitute Organisms PPT Courseware 3 [Autonomous Learning] 1. The development of animals and human bodies starts with one cell, that is, _____, and this cell is continuously formed by ____ and _____ ____. Different organizations further formed ____. ..

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Update Time: 2024-11-20

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

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