"Human Food" PPT Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
| 文件名 如何下载使用 | 下载次数 | Download Points | 下载地址 |
|---|---|---|---|
| "Human Food" PPT | 3800次 | 0.00 | Free Download |
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Human Food" PPT is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Human Food" PPT, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view:Please click to see
Authoritative PPT Summary
"Human Food" PPT
Part 1: Think about it
Do you know which organisms human food comes from?
Why do we eat these foods?
What nutrients can food provide us?
do you know?
1. Have you ever eaten tofu? What are its main raw materials? What kind of nutrients is it rich in?
2. Some people don’t like to eat fruits and vegetables, but they are still healthy, but their teeth will bleed every time they brush their teeth. Do you know why?
3. Teenagers should drink at least one bag of milk every day. Do you know what nutrients are rich in milk?
4. Do you know how to detect protein?
5. Do you know how to test vitamin C?
Human Food PPT, Part 2: Classroom Experiment
Experiment 1: Detection of Protein
1. In the experiment, what is the purpose of setting up test tube B?
for controlled experiments
2. Why do the solutions in test tubes A and B change color differently?
The protein in test tube A can interact with the biuret reagent to turn the egg white purple.
The water in test tube B does not react with the biuret reagent.
Experiment 2: Detection of Vitamin C
1. In the experiment, what is the purpose of setting up test tube B?
Controlled experiment
2. Why are the colors of the solutions in test tubes A and B different?
The reagent dropped into test tube A reacts with vitamin C and fades, which is called fading reaction. The reagent dropped into test tube B dyed the water blue.
3. What kind of water-soluble substances can be detected with indoxyl?
Test vitamin C, because vitamin C can cause fading reactions with indoxyl.
Human Food PPT, Part 3: Course Extension
The Discovery of Vitamin C - Reading Materials
In 1519, Portuguese navigator Magellan led an ocean-going fleet from the east coast of South America to the Pacific Ocean. Three months later, some crew members had broken gums, some had nosebleeds, and some were weak. When the ship arrived at its destination, only 35 of the original more than 200 people survived, and people could not find out. reason.
In 1734, on a ship bound for Greenland, a crew member suffered from severe scurvy. The disease was untreatable at the time, and the other crew members had to abandon him on a desert island. When he regained consciousness, he ate wild grass to satisfy his hunger. After a few days, his scurvy was cured without any treatment.
Scurvy like this killed hundreds of thousands of British sailors. In 1747, the British naval doctor Lynde summarized the experience of his predecessors and suggested that the crew of the navy and expedition fleet should eat more lemons during long voyages. His advice was adopted, and scurvy has never occurred since then. But at that time, it was not known what substances in lemons had resistance to scurvy.
Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, human food PPT download, .PPT format;
For more information about the "Nutrition of the Human Body and Food for Humans" PPT courseware, please click on the "Nutrition of the Human Body PPT and Human Food PPT" tags.
"Human Food" PPT download:
"Human Food" PPT Download Part One Content: Objectives and Key Points [Learning Objectives] 1. Try to analyze the nutrients in food and explain the important effects of various nutrients on the human body. 2. Improve experimental operation capabilities by exploring the nutritional components of food..
"Human Food" PPT courseware:
"Human Food" PPT Courseware Part One: Nutrition in Food What nutrients are in human food? Why do we need these foods? Testing of nutrients. Testing of water. After baking, water droplets appeared on the wall of the test tube. Detection of inorganic salts...