"Structural Hierarchy of Animal Body" How cells constitute living organisms PPT courseware 5

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"Structural Hierarchy of Animal Body" How cells constitute living organisms PPT courseware 5

think about it

The growth of flounder begins with one cell. What cell is it?

What changes did this cell undergo to become a flatfish (cell group)?

Cell Differentiation:

During ontogeny, the morphology, structure and function of cells change.

Cells with similar shapes, structures and functions unite to form tissues.

Tissues make up organs

A structure composed of different organizations in a certain order, with one organization as the main one that can complete certain functions.

organ system

It is composed of multiple organs that can complete one or several physiological functions and are composed in a certain order.

The human body is a unified whole

There are eight major systems in the human body, which are the motor system, digestive system, respiratory system, circulatory system, urinary system, nervous system, endocrine system, and reproductive system. These eight major systems coordinate and cooperate to enable various complex life activities in the human body to proceed normally.

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 the main role in the organization formation process is ( )

A. Cell elongation

B. Cell growth

C. Cell division

D. Cell differentiation

3. The structural characteristics of connective tissue are ( )

A. The cells are tightly arranged and there is little intercellular substance.

B. Large intercellular spaces and more intercellular substance

C. There is little intercellular substance and the cells are loosely arranged.

D. The intercellular spaces are small and the intercellular matrix is ​​relatively small.

4. What can produce excitement and conduct excitement when stimulated ( )

A. Epithelial tissue

B. Connective tissue

C. Nervous tissue

D.Muscle tissue

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

"Structural Levels of Animal Bodies" How Cells Constitute Organisms PPT Courseware 6 Question: The growth of animals and human bodies 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 the fertilized egg are only spherical...

"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: 2024-11-21

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

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