Anderer Ressourcentyp

Siemens Stiftung

Amino acids and proteins in the human body (link list)

Link list:
Further information on the experiment "Amino acids and proteins in the human body - We verify their presence".

The links can be used for preparing or for further study of the experiment.

Video

Siemens Stiftung

Verification of amino acids and proteins in the human body (with subtitles)

Video (01:33 minutes, without sound):
The experiment shows how ninhydrin solution can be used to verify the presence of amino acids in human sweat.

A student makes a handprint on a piece of filter paper. The teacher then sprays the paper with ninhydrin solution. After a certain time and with the addition of heat, the handprint appears with a bluish-purple coloring. The heat is added to accelerate the development process. (However, the experiment works only with a very sweaty hand.)

For some scenes, explanations are displayed as subtitles. However, the film is also available without subtitles on the media portal: "Verification of amino acids and proteins in the human body (without subtitles)."

Information and ideas:
The experiment "Verification of amino acids and proteins in the human body" involves ninhydrin solution. For safety reasons, however, some teachers may not want to allow any experiments involving ninhydrin solution in their classrooms. In this case, the teachers can show the video as an alternative.
Detailed experimentation instructions are found in the medium "Verification of amino acids and proteins in the human body (student instructions)," which is available on the media portal.

Medientypen

Video

Lernalter

11-18

Schlüsselwörter

Amino acids Metabolism

Sprachen

Englisch

Video

Siemens Stiftung

Verification of amino acids and proteins in the human body (without subtitles)

Video (01:33 minutes, without sound):
The experiment shows how ninhydrin solution can be used to verify the presence of amino acids in human sweat.

A student makes a handprint on a piece of filter paper. The teacher then sprays the paper with ninhydrin solution. After a certain time and with the addition of heat, the handprint appears with a bluish-purple coloring. The heat is added to accelerate the development process. (However, the experiment works only with a very sweaty hand.)

The film is also available on the media portal as a version in which explanations are displayed as subtitles for some scenes: "Verification of amino acids and proteins in the human body (with subtitles)."

Information and ideas:
The experiment "Verification of amino acids and proteins in the human body" involves ninhydrin solution. For safety reasons, however, some teachers may not want to allow any experiments involving ninhydrin solution in their classrooms. In this case, the teachers can show the video as an alternative.
Detailed experimentation instructions are found in the medium "Verification of amino acids and proteins in the human body (student instructions)," which is available on the media portal.

Medientypen

Video

Lernalter

11-18

Schlüsselwörter

Amino acids Metabolism

Sprachen

Englisch