"Structure and Function of Human and Animal Cells" PPT

Description

"Structure and Function of Human and Animal Cells" PPT

Part One: Observation: Human Oral Epithelial Cells

Discussion: Experimental procedures for observing the structure of human oral epithelial cells

hint:

1. We can learn from the steps of observing the epidermal cell structure of onion scale leaves.

2. Read the relevant content on page P36 of the textbook and pay attention to comparing the differences between the two experiments.

Steps: 1. Make temporary slide specimens

2. Dyeing

3. Observe

4. Draw pictures

experiment

Experiment in groups. Refer to P37 and Figure 3-4 to identify the structure of each part of the cell, and think about the following questions:

(1) When staining cells, what structure of the cell is stained the most? Why?

(2) What are the differences and similarities between human and animal cell structures and plant cell structures?

The Structure and Function of Human and Animal Cells PPT, Part 2: The Structure and Function of Human and Animal Cells

1. Basic structure of human and animal cells

2. Similarities and differences between animal and plant cell structures

3. Functions of various structures of human and animal cells

cell membrane

Control the entry and exit of substances inside and outside the cell and maintain the relative stability of the intracellular environment

cytoplasm

important place for life activities

cell nucleus

Contains genetic material and transmits genetic information

Mitochondria

Related to respiration, providing energy for cell life activities

PPT on the structure and function of human and animal cells, part three: self-evaluation

1. The basic structure of human and animal cells includes ( )

A. Cell wall, cytoplasm, chromosomes

B. Cell membrane, cytoplasm, nucleus

C. Cell membrane, cytoplasm, chromosomes

D. Nucleus, chromosomes, mitochondria

2. When making a temporary slide specimen of human oral epithelial cells, the parts where the cells are scraped and the liquid dropped on the slide are ( )

A. The inner wall of the oral cavity, tap water B. The inner wall of the oral cavity, normal saline

C. Between teeth, tap water D. Between teeth, normal saline

3. Judgment of right and wrong

(1) DNA is the main genetic material. ( )

(2) The structure of chromosomes in different biological cells is the same. ( )

(3) The main components of chromosomes are DNA and proteins. ( )

(4) DNA and proteins are the main components of chromosomes, therefore, they are genetic material. ( )

Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, structure and function of human and animal cells PPT download, .PPT format;

For more information about the PPT courseware "Cells are the basic unit of life activities, the structure and function of human and animal cells", please click the Cell is the basic unit of life activities ppt structure and function of human and animal cells ppt tag.

"Structure and Function of Human and Animal Cells" PPT courseware:

"Structure and Function of Human and Animal Cells" PPT courseware Part 1: Review 1. Structure of plant cells 2. Functions of plant cells Answers 1. Onion epidermal cells are approximately rectangular. What structure maintains the shape of the cells? 2. Substances that can benefit...

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Update Time: 2024-11-22

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

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