Form IV
- Place of Publication : New Delhi
- Periodicity of its publication : Monthly
- Printer’s and Publisher’s Name : Mahabir Singh
Nationality : Indian
Address : MTBiology Today,
406, Taj Apartment,
New Delhi - 110029.
- Editor’s Name : Anil Ahlawat
Nationality : Indian
Address : MTBiology Today,
19, National Media
Centre, Gurgaon
Haryana - 122002
- Name and address of : Mahabir Singh
individuals who own the 406, Taj Apartment,
newspapers and partners or New Delhi
shareholders holding more than
one percent of the total capital
I, Mahabir Singh, here by declare that particulars given above are
true to the best of my knowledge and belief.
Mahabir Singh
Publisher
- concentration of essential element below which plant
growth is retarded is termed
(a) toxic concentration
(b) supra-optimum concentration
(c) critical concentration
(d) optimum concentration.
- Which of the following is a wrong statement?
(a) cl– along with K+ maintain anion-cation balance in
the cell.
(b) Nitrogen is the essential element required by the
plant in the greatest amount, it is absorbed, mainly,
in the form of NO 2 –.
(c) Sulphur is an important constituent of coenzyme-a
and cysteine.
(d) Boron is important for uptake and utilisation of ca++.
- Excess of mn++ induces the deficiency of
(a) Fe (b) mg (c) ca (d) all of these.
- Which of the following is a micronutrient?
(a) mn (b) mg (c) ca (d) K
- Soil less culturing of plants in a mist of nutrient solution is
(a) aeroponics (b) sand culture
(c) hydroponics (d) horticulture.
- Which of the following is a correct match
(a) Zn++ - an activator of alcohol dehydrogenase.
(b) mn++ and mo - an activator of PEPcase.
(c) Fe+++ - activator of succinate dehydrogenase
(d) cu - part of cyta and cyta 3
- During N 2 fixation in root nodule to form Nh 3 molecule.
how many aTP are consumed?
(a) 16 (b) 4 (c) 2 (d) 8
- Leg-haemoglobin, a red pigment, in root nodule has
very-very important role as it
(a) picks up hydrogen and transfers to N 2 for production
of Nh 3
(b) helps in increasing availability of O 2 to nodule
(c) help in creating and maintaining anaerobic
conditions in root nodules
(d) act as inhibitor of nitrogenase enzyme.
- If half of the leaves of a herb are prunned then rate of
transpiration
(a) decreases to almost half
(b) becomes almost double
(c) remain unchanged but over all transpiration decrease
(d) rate increases by about four times.
- a mustard plant has its weight as 5 kg. It will absorb
about how much water within a day?
(a) 24 kg (b) 10 kg (c) 12 kg (d) 100 kg
- Nepenthes, Utricularia and Drosera all are
(a) partial heterotrophs (b) purely saprotrophic
(c) autotrophic only (d) facultative parasitic.
- With respect to shown diagram, which of the following
is true?
Inner side
of cell
Tr ansport
Protein
Tr ansported
molecule
Inner side
of cell
Membrane
(i)
Membrane
(ii)
Outer side
of cell
Outer side
of cell
(a) Facilitated diffusion (b) Simple diffusion
(c) active transport (d) Endosmosis
- a cell under hypertonic solution shows incipient
plasmolysis, then what will be present between cell wall
and cell membrane?
(a) Water with ψw zero
(b) Solution with same ψw, as solution out the cell
(c) Water with slightly high ψw as compare to solution
outside the cell
(d) Vacuum
