Phospholipide im Wasser
About points...
We associate a certain number of points with each exercise.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
When you click an exercise into a collection, this number will be taken as points for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit the number of points for the exercise in the collection independently, without any effect on "points by default" as represented by the number here.
That being said... How many "default points" should you associate with an exercise upon creation?
As with difficulty, there is no straight forward and generally accepted way.
But as a guideline, we tend to give as many points by default as there are mathematical steps to do in the exercise.
Again, very vague... But the number should kind of represent the "work" required.
About difficulty...
We associate a certain difficulty with each exercise.
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
When you click an exercise into a collection, this number will be taken as difficulty for the exercise, kind of "by default".
But once the exercise is on the collection, you can edit its difficulty in the collection independently, without any effect on the "difficulty by default" here.
Why we use chess pieces? Well... we like chess, we like playing around with \(\LaTeX\)-fonts, we wanted symbols that need less space than six stars in a table-column... But in your layouts, you are of course free to indicate the difficulty of the exercise the way you want.
That being said... How "difficult" is an exercise? It depends on many factors, like what was being taught etc.
In physics exercises, we try to follow this pattern:
Level 1 - One formula (one you would find in a reference book) is enough to solve the exercise. Example exercise
Level 2 - Two formulas are needed, it's possible to compute an "in-between" solution, i.e. no algebraic equation needed. Example exercise
Level 3 - "Chain-computations" like on level 2, but 3+ calculations. Still, no equations, i.e. you are not forced to solve it in an algebraic manner. Example exercise
Level 4 - Exercise needs to be solved by algebraic equations, not possible to calculate numerical "in-between" results. Example exercise
Level 5 -
Level 6 -
Question
Solution
Short
Video
\(\LaTeX\)
No explanation / solution video to this exercise has yet been created.
Visit our YouTube-Channel to see solutions to other exercises.
Don't forget to subscribe to our channel, like the videos and leave comments!
Visit our YouTube-Channel to see solutions to other exercises.
Don't forget to subscribe to our channel, like the videos and leave comments!
Exercise:
Was geschieht wenn man Phospholipide in eine wässrige Lösung pipettiert? Stelle zwei Möglichkeiten dar und begründe chemisch die Selbstorganisation dieser Phospholipide.
Solution:
tikzpicturescale foreach x in --....-. filldrawcolorred! fillred! thinx circle mm; filldrawcolorred! fillred! thinx circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; scopexshift-cm yshift.cm foreach a in ... filldrawcolorred! fillred! thin rotatea. circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:.mm+-.; scope tikzpicture links dargestellt eine Doppelmembran rechts eine Micelle Phospholipide haben textcolorredhydrophile/lipophobe Köpfe und textcolorred!!yellowhydrophobe/lipophile Schwänze Fettsäuren. Wasser kann deshalb nur mit den Köpfen Zwischenmolekulare Kräfte ausbilden in Form von Wasserstoffbrücken. Die hydrophoben Schwänze können das nicht deshalb werden sie nach innen gelagert um den ceHO-Kontakt zu vermeiden. Sie halten untereinander mittels van-der-Waals-Kräfte zusammen. Bei beiden Skizzen sind die lipophilen Teile zueinander nach innen und die hydrophilen Teile nach aussen gerichtet.
Was geschieht wenn man Phospholipide in eine wässrige Lösung pipettiert? Stelle zwei Möglichkeiten dar und begründe chemisch die Selbstorganisation dieser Phospholipide.
Solution:
tikzpicturescale foreach x in --....-. filldrawcolorred! fillred! thinx circle mm; filldrawcolorred! fillred! thinx circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; scopexshift-cm yshift.cm foreach a in ... filldrawcolorred! fillred! thin rotatea. circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:.mm+-.; scope tikzpicture links dargestellt eine Doppelmembran rechts eine Micelle Phospholipide haben textcolorredhydrophile/lipophobe Köpfe und textcolorred!!yellowhydrophobe/lipophile Schwänze Fettsäuren. Wasser kann deshalb nur mit den Köpfen Zwischenmolekulare Kräfte ausbilden in Form von Wasserstoffbrücken. Die hydrophoben Schwänze können das nicht deshalb werden sie nach innen gelagert um den ceHO-Kontakt zu vermeiden. Sie halten untereinander mittels van-der-Waals-Kräfte zusammen. Bei beiden Skizzen sind die lipophilen Teile zueinander nach innen und die hydrophilen Teile nach aussen gerichtet.
Meta Information
Exercise:
Was geschieht wenn man Phospholipide in eine wässrige Lösung pipettiert? Stelle zwei Möglichkeiten dar und begründe chemisch die Selbstorganisation dieser Phospholipide.
Solution:
tikzpicturescale foreach x in --....-. filldrawcolorred! fillred! thinx circle mm; filldrawcolorred! fillred! thinx circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; scopexshift-cm yshift.cm foreach a in ... filldrawcolorred! fillred! thin rotatea. circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:.mm+-.; scope tikzpicture links dargestellt eine Doppelmembran rechts eine Micelle Phospholipide haben textcolorredhydrophile/lipophobe Köpfe und textcolorred!!yellowhydrophobe/lipophile Schwänze Fettsäuren. Wasser kann deshalb nur mit den Köpfen Zwischenmolekulare Kräfte ausbilden in Form von Wasserstoffbrücken. Die hydrophoben Schwänze können das nicht deshalb werden sie nach innen gelagert um den ceHO-Kontakt zu vermeiden. Sie halten untereinander mittels van-der-Waals-Kräfte zusammen. Bei beiden Skizzen sind die lipophilen Teile zueinander nach innen und die hydrophilen Teile nach aussen gerichtet.
Was geschieht wenn man Phospholipide in eine wässrige Lösung pipettiert? Stelle zwei Möglichkeiten dar und begründe chemisch die Selbstorganisation dieser Phospholipide.
Solution:
tikzpicturescale foreach x in --....-. filldrawcolorred! fillred! thinx circle mm; filldrawcolorred! fillred! thinx circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+-:mm --x+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthptx+:mm --x+:mm+.; scopexshift-cm yshift.cm foreach a in ... filldrawcolorred! fillred! thin rotatea. circle mm; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:mm+-.; drawred!!yellow very thick snakecoil segment aspect segment amplitude.pt segment lengthpt rotatea.+-:.mm --.+-:.mm+-.; scope tikzpicture links dargestellt eine Doppelmembran rechts eine Micelle Phospholipide haben textcolorredhydrophile/lipophobe Köpfe und textcolorred!!yellowhydrophobe/lipophile Schwänze Fettsäuren. Wasser kann deshalb nur mit den Köpfen Zwischenmolekulare Kräfte ausbilden in Form von Wasserstoffbrücken. Die hydrophoben Schwänze können das nicht deshalb werden sie nach innen gelagert um den ceHO-Kontakt zu vermeiden. Sie halten untereinander mittels van-der-Waals-Kräfte zusammen. Bei beiden Skizzen sind die lipophilen Teile zueinander nach innen und die hydrophilen Teile nach aussen gerichtet.
Contained in these collections:
-
Fette/Lipide by rk