Subjects

Knowunity AI

Open the App

Subjects

Biologia i GeologiaBiologia i Geologia110 views·Updated Jun 22, 2026·1 page

Introducción a los Lípidos

S
Sheila Taipe@sheilataipe

Els lípids són molècules orgàniques molt diverses que trobes a...

1
of 1
SAPONIFICABLES
Son lipids amb acid grassos
S'utilitza per fabricar SABÓ
Son ÉSTERS (acid
gras+alcohol)

12. Lipids

INSAPONIFICABLES
Lipids

Els Lípids: Classificació i Propietats Bàsiques

Els lípids es divideixen en dos grans grups segons si tenen àcids grassos o no. Els saponificables contenen àcids grassos i es poden usar per fabricar sabó, mentre que els insaponificables no en tenen.

Els àcids grassos són molècules amb una llarga cadena de carbonis acabada en un grup carboxil COOH-COOH. Aquesta estructura els dona propietats amfipàtiques: una part hidròfila (que "agrada" l'aigua) i una part hidròfoba (que la "repel·leix").

📌 Truc important: Si un àcid gras és saturat (sense dobles enllaços), el lípid serà sòlid a temperatura ambient. Si és insaturat (amb dobles enllaços), serà líquid. Per això l'oli d'oliva és líquid i el greix animal és sòlid!

Les propietats generals dels lípids inclouen ser lipòfils (es dissolen en greixos), tenir baixa densitat i punt de fusió elevat. Aquesta diversitat de propietats els permet complir funcions molt variades al nostre organisme.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Ácido graso

9

Most popular content in Biologia

8

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user
Biologia i GeologiaBiologia i Geologia110 views·Updated Jun 22, 2026·1 page

Introducción a los Lípidos

S
Sheila Taipe@sheilataipe

Els lípids són molècules orgàniques molt diverses que trobes a tot arreu del teu cos, des de les membranes cel·lulars fins als greixos que emmagatzemes energia. La seva característica principal és que no es dissolen en aigua, però sí en...

1
of 1
SAPONIFICABLES
Son lipids amb acid grassos
S'utilitza per fabricar SABÓ
Son ÉSTERS (acid
gras+alcohol)

12. Lipids

INSAPONIFICABLES
Lipids

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Els Lípids: Classificació i Propietats Bàsiques

Els lípids es divideixen en dos grans grups segons si tenen àcids grassos o no. Els saponificables contenen àcids grassos i es poden usar per fabricar sabó, mentre que els insaponificables no en tenen.

Els àcids grassos són molècules amb una llarga cadena de carbonis acabada en un grup carboxil COOH-COOH. Aquesta estructura els dona propietats amfipàtiques: una part hidròfila (que "agrada" l'aigua) i una part hidròfoba (que la "repel·leix").

📌 Truc important: Si un àcid gras és saturat (sense dobles enllaços), el lípid serà sòlid a temperatura ambient. Si és insaturat (amb dobles enllaços), serà líquid. Per això l'oli d'oliva és líquid i el greix animal és sòlid!

Les propietats generals dels lípids inclouen ser lipòfils (es dissolen en greixos), tenir baixa densitat i punt de fusió elevat. Aquesta diversitat de propietats els permet complir funcions molt variades al nostre organisme.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Ácido graso

9

Most popular content in Biologia

8

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user