Two sets of tomato seedlings are grown in a nutrient solution. One set is given all the essential nutrients in their proper concentrations; the other set is given a nutrient solution that lacks potassium. The potassium-deficient plants have yellowed leaves with brown dead spots and weakened stems, whereas the other plants appear healthy. What do these results suggest about a tomato plant's requirement for potassium?

+1 vote

 

  

Potassium is important only for photosynthesis.

  

Potassium is required for healthy growth.

  

Potassium is not necessary for plant growth.

  

Potassium is required for all cell functions.

 

asked Dec 31, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

Potassium is required for healthy growth.

 

answered Dec 31, 2012 by PureLife ~Expert~ (413 points)

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