Section-A

1.Premature leaf fall is due to deficiency of

2.Enzyme required for nitrogen fixation is

3.Insectivorous plants eats the insect for

4.What effect can be seen on the plant growth and reproduction in the absence of essential mineral element?

5.Which of the following elements is considered as beneficial elements in higher plants?

6.Which of the following shows the deficiency symptoms of nitrogen in plants?

7.‘mottled chlorosis’ on the leaves occurs due to the deficiency of

8.Name the fungus that helps in $N_2$-fixation

9.If by radiation all nitrogenase enzymes are inactivated, then there will be no

10.The number of essential elements known for the growth and reproduction of plants is

11.Which among the following is the major constituent of proteins, nucleic acids, vitamins and hormones?

12.Which of the following option shows correct co-relation between column I, II and III?

13.Which of the following are reservoirs for phosphorus and nitrogen cycle respectively?

14.Essential elements perform many functions which includes
I. Permeability of the cell membrane
II. Maintenance of osmotic concentration of the cell sap
III. Major constituents of macromolecules and coenzymes
IV. Buffering action
Choose the correct option

15.Select the incorrect statement

16.Necrosis is the term used for the

17.Which one of the following elements in plants is not remobilised?

18.Two nitrogen atoms are joined by

19.Cuscuta is a

20.$Mg^{2+}$ is an activator of
I. alcohol dehydrogenase
II. nitrogenase
III. ribulose bisphosphate carboxylase oxygenase
IV. phosphoenol pyruvate carboxylase
Choose the correct option

21.The enzyme responsible for the reduction of molecular nitrogen to the level of ammonia in leguminous root nodule is

22.Name the elements, which occur in nucleic acid macromolecule?

23.Nitrifying bacteria

24.VAM is

25.Which of the following is not considered as a trace element (micronutrient) in the plant?

26.Which of the following are considered as the roles of iron (Fe) in plants?
I. Important constituent of cytochrome
II. Activator of catalase
III. Essential for chlorophyll synthesis
Choose the correct option

27.Name the minerals responsible for maintaining cation-anion balance in the plant cells

28.The enzyme responsible for the reduction of molecular nitrogen to the level of ammonia in the leguminous root nodules is

29.$Ca^{2+}$ is an essential elements in plants. The major function it performs is

30.For the uptake of ions in the first phase of absorption of minerals, the pathway followed is called

31.A plant which lives on another plant but do not take food or anything from plant is called

32.I. The practice of growing plants in nutrient enriched water without soil is called __
II. The system of growing plants with their roots bathed in nutrient mist (a cloud of moisture in air) is called…..
Complete the given statement (I and II) with the correct pair of options given below

33.Humus is essential for plant growth because

34.Insectivorous plants live in a soil that is usually deficient in

35.Plant deficient of element zinc, shows its effects on the biosynthesis of plant growth hormone

Section-B