Identify correct match.

1. Die back disease of citrus	(i) Mo
2. Whip tail disease	(ii) Zn
3. Brown heart of turnip	(iii) Cu
4. Little leaf	(iv) B

(a)

1(iii) 2 (ii) 3 (iv) 4 (i)

(b)

1 (iii) 2 (i) 3 (iv) 4 (ii)

(c)

1 (i) 2 (iii) 3 (ii) 4 (iv)

(d)

1 (iii) 2 (iv) 3 (ii) 4 (i)

Identify the correct statement
i. Sulphur is essential for amino acids Cystine and Methionine
ii. Low level of N, K, S and Mo affect the cell division
iii. Non-leguminous plant Alnus which contain bacterium Frankia
iv. Denitrification carried out by nitrosomonas and nitrobacter.

(a)

I, II are correct

(b)

I, II, III are correct

(c)

I only correct

(d)

all are correct

Which chelating agent found in soil are produced by bacteria?

(a)

Siderophores

(b)

EDTA

(c)

Auxin

(d)

Leghaemoglobip

Roots of which plant contain a red pigment Which have affinity for oxygen?

(a)

Carrot

(b)

Soybean

(c)

Mustard

(d)

Radish

Which group of plants can grow in nitrogen deficient soil?

(a)

Lichen

(b)

Gymnosperms

(c)

Bryophytes

(d)

Insectivorous plants

Minerals that play an important role for activation of enzymes involved in respiration.

(a)

Sulphur and Calcium

(b)

Calcium and Potassium

(c)

Nitrogen and Molybdenum

(d)

Magnesium and Manganese

________  is not a structural component mineral

(a)

Carbon

(b)

Nitrogen

(c)

Oxygen

(d)

Magnesium

___________  is a mineral needed for binding of Ribosomal subunits.

(a)

Manganese

(b)

Magnesium

(c)

Zinc

(d)

Molybdenum

Coralloid Roots are seen in  ____________

(a)

Cycas

(b)

Legume

(c)

Alnus

(d)

Lichens

A free living anaerobic Nitrogen fixing bacteria __________

(a)

Azolla

(b)

Klebsiella

(c)

Clostridium

(d)

Frankia