"Chemical Elements and Human Health" Chemistry and Life PPT

Description

"Chemical Elements and Human Health" Chemistry and Life PPT, 24 pages in total.

knowledge management

1. chemical elements in human body

Macroelements: There are more than 50 elements that make up the human body. Elements whose content exceeds 0.01% in the human body are called macroelements. There are 11 macroelements, they are __________, calcium, phosphorus, potassium, sulfur, sodium, chlorine and magnesium.

Trace elements: Elements whose content is less than 0.01% are called trace elements. Such as ____, ____, ____, ____, ____, etc.

2. Effects of chemical elements on human health

Basic questions

Test point 1 Chemical elements in the human body

1. Elements whose content in the human body is less than 0.01% are called trace elements. Which of the following elements is not a trace element ( )

A. iron b. zinc

C. Iodine d. carbon

2. (2018•Tianjin) The metal element with the highest content in the human body is ( )

A. iron b. zinc

C. potassium d. calcium

Intermediate questions

8. The picture shows the instructions for a certain sesame sauce. Which of the following is correct about this sesame sauce ( )

A. Does not contain trace elements B. No sugar or fat

C. Use with caution in infants D. More calcium than protein

9. Chemical elements are closely related to human health. Which of the following statements is correct ( )

A. Sodium is an element needed by the human body to maintain normal activities, so you must eat more salt to ensure your sodium intake.

B. The human body will get sick if it lacks trace elements, so it is necessary to eat more nutritional supplements containing these elements.

C. There are 11 elements that are abundant in the human body, accounting for about 99.95% of the human body mass.

D. Lack of certain elements in inorganic salts has little impact on human health

Keywords: Free download of PPT courseware for the second volume of the ninth grade of Chemistry published by the People's Education Press, download of Chemical Elements and Human Health PPT, download of Chemistry and Life PPT, .PPT format;

For more information about the "Chemistry and Life Chemical Elements and Human Health" PPT courseware, please click the Chemistry and Life PPT Chemical Elements and Human Health PPT tab.

"Chemical Elements and Human Health" Chemistry and Life PPT download:

"Chemical Elements and Human Health" Chemistry and Life PPT download, 22 pages in total. New Knowledge Learning Knowledge Point 1 Elements that make up the human body 1. There are many kinds of elements that make up the human body. 2. Macroelements: The content in the human body exceeds ________, including O, C, H, N,...

"Chemical Elements and Human Health" Chemistry and Health PPT Download:

"Chemical Elements and Human Health" Chemistry and Health PPT download, 23 pages in total. Knowledge review Knowledge point 1 Chemical elements in the human body 1. There are _______ elements that constitute the human body, _____ are macroelements, and the rest are trace elements. ①_______yuan..

"Chemical Elements and Human Health" Chemistry and Health PPT Courseware:

"Chemical Elements and Human Health" Chemistry and Health PPT courseware, 24 pages in total. New Knowledge Learning Knowledge Point 1 Chemical Elements in the Human Body 1. Macroelements In the human body, elements with a content of ________0.01% are called macroelements, such as ________, carbon, hydrogen, nitrogen, _____..

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Update Time: 2024-11-21

This template belongs to Chemistry courseware People's Education Press Ninth Grade Chemistry Volume 2 industry PPT template

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