00:01
Here we have some nutrients and possible functions.
00:05
Which of these pairs is correct? a, chlorine as a component of enzymes, potassium as a component of nucleic acids, phosphorus as a component of proteins, manganese for shoot and root growth, or calcium for cell wall and membrane permeability.
00:25
Okay, chlorine first of all, what is chlorine used for? or chlorine is for root and shoot growth and also for photosynthesis.
00:34
So it is not a component of several enzymes.
00:38
What about potassium? do you find potassium in nucleic acids? well, no, nucleic acids are nitrogenous and they also have phosphorus.
00:49
They don't have potassium.
00:51
What you do need potassium for is as an activator of enzymes and also it's one of the ions used in the water solid balance.
01:02
Phosphorus...