"Metabolic Waste Produced by the Human Body" PPT download

Description

"Metabolic Waste Produced by the Human Body" PPT download

Part One: Introduction of New Course

Does the students know what this symbol is?

Question 1: May I ask the students, why do we have to go to the toilet every day?

Question 2: Based on life experience, in addition to the ones mentioned in question 1, do our bodies also excrete other wastes?

learning target

1. Know the main metabolic waste products produced by the human body and their elimination pathways.

2. Explain the concept of excretion and its significance to human life activities.

Metabolic waste produced by the human body PPT, part 2: metabolism

1. Cell metabolism produces a variety of waste products

Explore: Determination of Urine Composition

Take a look: What color is urine?

Smell it: What does urine smell like? Can you guess what substance this smell comes from?

Try it: There is a white powdery substance on the baked glass slide. Guess what it is?

2. Metabolic waste is excreted from the body through various pathways

The process by which the body excretes metabolic waste products such as carbon dioxide, urea, excess water and inorganic salts is called excretion.

What types of metabolic waste products can be eliminated by the urinary system?

Most water, most urea, inorganic salts

What types of metabolic waste products can the respiratory system eliminate?

carbon dioxide and a little water

What types of metabolic waste products can the skin excrete?

Part of water, small amount of inorganic salt, urea

3. Excretion maintains the stability of cell living environment

meaning of excretion

There is an advertising slogan that says "Remove toxins and feel relaxed". This statement is not groundless.

Metabolic waste produced by the human body PPT, part 3: on-site training

1. The white substance left behind when urine is baked is ( )

A.Water B.Carbon dioxide C.Urea D.Inorganic salt

2. Waste produced by human life activities can be excreted from the body through various channels. The following physiological activities are all excretion pathways of the human body: ( )

① Exhale ② Sweat ③ Defecate ④ Urinate

A.①②④ B.①②③

C.①③④ D.②③④

Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, metabolic waste produced by the human body PPT download, .PPT format;

For more information about the PPT courseware "Discharge of Metabolic Wastes from the Human Body Metabolic Wastes Produced by the Human Body", please click the Discharge of Metabolic Wastes from the Human Body ppt Metabolic Wastes Produced by the Human Body ppt tag.

"Metabolic Waste Produced by the Human Body" PPT courseware download:

"Metabolic Waste Produced by the Human Body" PPT courseware download Part One: Learning Objectives 1. Understand that human cells decompose organic matter through respiration, release energy, and produce metabolic waste at the same time. 2. Explain the concept, pathway, and meaning of excretion, and construct metabolic waste..

"Metabolic Waste Produced by the Human Body" PPT courseware:

"Metabolic Waste Produced by the Human Body" PPT courseware Part One Content: Learning Objectives: ① Master the three ways in which metabolic waste is excreted by the human body. ②Types of excreted waste. ③The significance of excretion to human life activities. Key points and difficulties in learning: Key point: The definition of excretion..

"Metabolic Waste Produced by the Human Body" PPT:

"Metabolic Waste Produced by the Human Body" PPT Part One Content: Textbook Analysis: This section is an overview of Chapter 11. Through the teaching of this section, students can understand what metabolic waste is, and at the same time understand the elimination pathways of metabolic waste and the impact of this activity on human life. The importance of the event...

File Info

Update Time: 2024-11-22

This template belongs to biology courseware Beijing Normal University Edition Seventh Grade Biology Volume 2 industry PPT template

Preview