ROLES OF ESSENTIAL ELEMENTS IN PLANT NUTRITION

Question 1

– serve
largely in the synthesis of carbohydrates,
proteins, fats, and related compounds.
They are the major constituents in most
plant compounds.

Answer 1

Carbon, Hydrogen, Oxygen

Question 2

– it is a part of many proteins
which serve as enzymes and also is a
part of the chlorophyll molecule.

Answer 2

Nitrogen

Question 3

– it is present in seeds in
larger amounts than in any other
parts of plant

Answer 3

Phosphorus

Question 4

– it is essential in all
cell metabolic processes

Answer 4

Potassium

Question 5

– ______in the form of _______
pectate is a part of the cell wall and is
necessary for the growth of
meristems. It also exists in plants in
the oxalate form.

Answer 5

Calcium

Question 6

– This element is active in
enzyme systems, is a part of the
chlorophyll molecule, and aids in the
translocation of phosphorus in plants

Answer 6

Magnesium

Question 7

– It is a constituent of compounds
including amino acids (cystine and
methionine)

Answer 7

Sulfur

Question 8

8. Both iron and
   manganese play important role in
   plant enzyme systems. They are
   required for the chlorophyll synthesis.
   Their utilization in the plant is
   interrelated - an excess of manganese
   causes an inactivation of the iron.

Answer 8

Iron and Manganese –

Question 9

– It functions in carbohydrate
metabolism

Answer 9

Boron

Question 10

– They are components
of enzymes. Both are apparently
necessary for formation of growth
promoting substances

Answer 10

Copper and Zinc

Question 11

1. – The reduction of nitrate
   in plant is l

Answer 11

Molybdenum

Question 12

– This element is rarely, if ever
deficient for plant growth.

Answer 12

Chlorine

Question 13

• known to be essential for
  nitrogen fixation of the free-living
  cyanobacterium, Nostoc muscorum .

Answer 13

Nickel