Potassium & Other Nutrients (Quiz 3) Flashcards Preview

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Flashcards in Potassium & Other Nutrients (Quiz 3) Deck (16)
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1
Q

Potassium =

A

most common ion in plants

2
Q

Potassium sets up

A

membrane potential

3
Q

Potassium is usually not

A

limiting in soil

4
Q

Potassium is important for

A

osmoregulation

5
Q

Potassium regulates

A

stomatal opening

6
Q

Potassium activates

A

enzymes

7
Q

sulfur occurs as

A

sulfate SO4 2-

8
Q

sulfur can be difficult

A

to remove from soil

9
Q

sulfur is important for

A

protein / AA synthesis

10
Q

calcium effects: (2)

A

cell membrane permeability

uptake of other nutrients

11
Q

calcium is also an

A

enzyme cofactor

12
Q

iron occurs as

A

Fe2+ or Fe3+

13
Q

iron is needed for

A

synthesis of chlorophyll & cytochromes (for photosynth & respiration aka ETC/Light Dep Rxns)

14
Q

iron deficiency leads to

A

chlorosis

15
Q

magnesium is the

A

center of the “head” of chlorophyll

16
Q

magnesium is also an…

involved in…

A

enzyme cofactor

involved in activation of Photosynth-RUBUSCO