Mineral nutrition practice · Mixed difficulty

Which of the following statements are not correct in reference to hydroponics?
I. It determines the mineral nutrients essential for the plants
II. The hydroponics involves the culture of plants in a soil with, defined mineral solution
III. Hydroponics requires purified water with non-defined mineral nutrient salts
IV. In the hydroponics technique, plants are grown in sandy soil with nutrient solution
V. By this method, essential elements required for the growth of plants can be identified and their deficiency symptoms can also be discovered
Choose the correct options

The leghaemoglobin that imparts pink-red colour to the root nodules is located in

Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism?

What is the key principle of the EBB and flow system in hydroponics?

Read the following statements:
A. Frankia produce nitrogen fixing nodules in the roots of leguminous plant-Alnus
B. Nodule formed, establishes an indirect vascular connection with the host for exchange of nutrients.
C. Glutamate is produced by reductive amination.
D. Nitrogenase is capable of nitrogen reduction which is present exclusively in prokaryotes.
How many of the above statements are correct –

Mark the statements as true/ false by choosing the correct option from the set (I-IV) given below
I. Magnesium is a constituent of chlorophyll and helps to maintain the ribosome structure
II. Calcium is needed during the formation of mitotic spindle
III. Magnesium is essential for the photolysis of water
IV. Zinc helps in sugar translocation

Hydroponics is the method of

Sulphur is found as a constituent in which of the following amino acids?

The microelement, which is an integral part of the electron carrier which transfers electrons for cyt-b-f complex to PS-I is a component of

Which of the following is a bacterium involved in denitrification?

In the final phase of mineral absorption ions are taken up

Which of the following is considered as partial mineral elements in plants?

Assertion (A): Amides are transported to other parts of plant via xylem vessels.

Reason (R): Amides contain more nitrogen than the amio acids.

Hydroponics is the growth of plants in

In which of the following conditions, plants cannot be grown?

Which of the following method is close to hydroponics and has the same principle?

$\alpha -$ ketoglutaric acid $\mathrm{ + N}{\mathrm{H}_\mathrm{4}} + NADPH\xrightarrow{{'A'}}\mathrm{glutamate} + {\mathrm{H}_\mathrm{2}}\mathrm{O} + NADP\,\,'A'\,\mathrm{stand}\,\mathrm{for}\,\mathrm{?}$

Which one of these do plants require for the formation of adenosine triphosphate?

In the final phase of mineral absorption, ions are taken up into the …… space of cells

Major disadvantages of hydroponics include

Assertion (A): Soyabean export the fixed nitrogen as ureides.

Reason (R): Amides contain excess nitrogen and they are transported via phloem sieve tubes.

Nitrogen is present in the soil in the form of I. Nitrates II. Ammonial salts III. Nitrite IV. None of these

Enzyme required for nitrogen fixation is

Clay and organic matter of soil have negative charge Clay and organic matter of soil have negative charge, They attract positively charged ions like

VAM is

Asparagine and glutamine are the two most important

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

Insectivorous plants eats insects for their requirement of

Which of the following is used as a chelating agent in hydroponics?

Hydroponic tomatoes may not taste so fresh. Why?