CBSE Questions for Class 11 Medical Biology Mineral Nutrition Quiz 10 - MCQExams.com

Match the following essential elements(List I) with their respective roles(List-II) and select the correct answer.
List-IList-II
a. Chlorine$$1$$. Constituent of plastocyanin
b. Copper$$2$$. Constituent of nitrate reeducates
c. Molybdenum$$3$$. Constituent of alcohol dehydrogenate
d. Zinc$$4$$. Required for $$CO_2$$ evolution in photosynthesis
$$5$$. Required for phosphate transfer
  • A-$$4$$, B-$$1$$, C-$$3$$, D-$$2$$
  • A-$$1$$, B-$$2$$, C-$$5$$, D-$$3$$
  • A-$$1$$, B-$$4$$, C-$$5$$, D-$$2$$
  • A-$$4$$, B-$$1$$, C-$$2$$, D-$$3$$
Apoptosis is programmed cell death characterised by the formation of apoptotic bodies whereas necrosis characterised by bursting of cells. Which of the following condition/s lead/s to necrosis ?
i) Gaps and nicks formed in DNA during replication cannot be repaired.
(ii) Developing neurons fail to make synapses with neighbouring cells.
(iii) Heart muscle cells damaged by oxygen depletion followed by cardiac infarction. 
  • (i) and (ii)
  • (ii) and (iii)
  • (i) only
  • (iii) only
Consider the following statements:
Berseem lucerne and oats have $$20\%$$ dry matter.
Maize has $$25\%$$ dry matter.
3.Wheat has $$90\%$$ dry matter.
Concentrates have $$90\%$$ dry matter.
Which of the statements given above are false?
  • 1 and 2
  • 1, 2 and 3
  • 2 and 4
  • 3 and 4
Chlorosis is caused by the deficiency of.
  • Chlorine and boron
  • Nitrogen and calcium
  • Magnesium and iron
  • Potassium and phosphorus
Which component of the ETS is carrier of electron as well as proton?
  • UQ
  • Cyt-a
  • Cyt-b
  • Cyt-f
Which of the following is correct set of macronutrients?
  • K, B, C, H
  • K, H, Mn, N
  • C, Zn, H, N
  • C, H, Mg, N
Match column I with column II and select the correct option from the codes given below.
Column I
(Deficient elements)
Column II
(Deficiency symptoms)
(a) Calcium(i) Necrosis appearing first in young leaves
(b) Magnesium(ii) Bronze color in leaves
(c) Chlorine(iii) Delay in flowering, premature fall of flower buds
(d) Phosphorus(iv) Interveinal chlorosis with purple anthocyanin pigmentation
  • (a) - (i) , (b) - (ii), (c) - (iii), (d) - (iv)
  • (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
  • (a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)
  • (a) - (i), (b) - (iv), (c) - (ii), (d) - (iii)
Bordeaux mixture consists of _______________.
  • Copper sulphate and calcium oxide
  • Copper carbonate and copper sulphate
  • Copper sulphate and calcium hydroxide
  • Copper sulphate and calcium chloride
Ribulose phosphate is a ____________.
  • Aldose sugar
  • Ketose sugar
  • Disaccharide
  • Trisaccharide
In most of the plants, a part which is free from infection / diseases is ___________.
  • Apical bud
  • flower
  • root
  • stem
The first stable product of fixation of atmospheric nitrogen in leguminous plant is
  • $$NO_{2}^{-}$$
  • Ammonia
  • $$NO_{3}^{-}$$
  • Glutamate
Tautomerisation is seen in ______________.
  • translocation
  • inversion
  • transition
  • duplication
State whether the following statements are true or false.
Rhizobium is freely found living in the soil while Azotobacter in root nodules.
  • True
  • False
A microelement is the one which is
  • more important than the macroelement
  • less important than the macroelement
  • present in very small quantities in the soil
  • needed in very small amounts but is as important as a macroelement
What is the key principle of the EBB and flow system in hydroponics?
  • It floods and drains periodically
  • It makes a tide flowing over the roots
  • It sprays a mist of nutrients on the roots
  • None of the above
Cell in root nodule is promoted by:
  • Auxin secreted by plant and Cytokinin secreted by bacteria
  • Cytokinin secreted by plant and Auxin secreted by bacteria
  • Auxin secreted by plants only
  • Nitrogenase secreted by bacteria only
Which element is common to nucleic acids, phospholip ATP, ADP, NADPH, NAD, FAD?
  • Calcium
  • Boron
  • Zinc
  • Phosphorus

Chlorosis is a common symptom of nitrogen and sulphur deficiency
  • True
  • False
Choose the correct answer from the alternatives given.
Hydroponics is a technique of growing:
  • submerged Plants
  • free-floating aquatic plants
  • terrestrial plants in sand
  • plants in aqueous balanced nutrient medium
The major portion of the dry weight of plants comprise
  • Nitrogen, Phosphorus and Potassium
  • Calcium, magnesium and sulphur
  • Carbon, nitrogen and hydrogen
  • Carbon, hydrogen and oxygen
The four elements called "big-four" which make up 95% of all elements found in a living system are
  • C, H, O, N
  • C, H, O, P
  • C,H,O,S
  • C, N, O, P
Select the correct statement(s) regarding the solution culture techniques.
  • Successful hydroponic culture requires a large volume of nutrient solution or frequent adjustment of the nutrient solution to prevent roots from producing radical changes in nutrient concentrations and pH of the medium.
  • In nutrient film growth system, plant roots lie on the surface of a trough, and nutrient solutions flow in a thin layer along the trough over the roots.
  • In aeroponics technique, plants are grown with their roots suspended in air while being sprayed continuously with a nutrient solution.
  • All of these
The technique of hydroponics was first demonstrated by ________.
  • M. Calvin (1961)
  • Julius Von Sachs (1860)
  • Arnon (1940)
  • Hoagland (1940)
Essential elements are 
  • Only macronutrients
  • Only micronutrients
  • Both macro and micronutrients
  • C, H, O and N only.
$$N_2$$ -fixing blue-green alga Anabaena which is extensively used in rice cultivation, form symbiotic association with?
  • Cycas roots
  • Azolla
  • Anthoceros
  • Alnus
Which of the following is not a deficiency symptom of minerals?
  • Internode shortening
  • Necrosis
  • Chlorosis
  • Etiolation
While in N, K and Mg deficiency, chlorosis appears first in _____ leaves; in S and Ca deficiency,_____ leaves are the first to be affected.
  • Young, old
  • Old, young
  • Old, old
  • Young, young
Necrosis refers to:
  • Inhibition of cell division
  • Delay in flowering
  • Death of tissues
  • Falling of leaves
Select the option that contains micronutrients only.
  • Mn, Mo, Zn
  • C, H, N
  • N, P, O
  • Mn, K, S
During nodule formation in leguminous plants, an infection thread is produced carrying the (i) into the (ii) of the root, where they initiate the nodule formation in the (iii) of the root.
Fill up the blanks by choosing the correct option. 
  • (i) - Cyanobacteria, (ii) - Pericycle, (iii) - Cortex
  • (i) - Bacteria, (ii) - Cortex, (iii) - Cortex
  • (i) - Cyanobacteria, (ii) - Cortex , (iii) - Pericycle
  • (i) - Bacteria, (ii) - Pericycle, (iii) - Pericycle
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