Most of Nitrogen is used in the decomposition of __________ and thus plant shows
deficiency symptoms :
a. Amino acids
b. Cellulose
c. Carbon compounds
d. Organic matter

1 Answer

Answer :

Cellulose

Related questions

Description : Proteins are most complex organic compounds, containing a. Carbon b. Hydrogen c. oxygen and nitrogen d. All of these

Last Answer : All of these

Description : Reproductive phase of fruit plants is improved by the accumulation of _____: a. Nitrogen b. Starch c. Proteins d. Cellulose

Last Answer : Starch

Description : Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? (a) Aerobic nitrate oxidation and nitrite reduction (b) ... fixation by Rhizobium in root nodules of legumes (d) Anaerobic ammonium oxidation and denitrification

Last Answer : (d) Anaerobic ammonium oxidation and denitrification

Description : Plants usually do not grow well in poorly drained soils because: a. Oxygen content is low in poorly drained soils b. The organic matter content of poorly drained soils is too high c. Poorly drained soils warm too quickly in spring d. Plant roots become engorged with water in poorly drained soils

Last Answer : Oxygen content is low in poorly drained soils

Description : The slow rate of decomposition of fallen logs in nature is due to their (a) anaerobic environment around them (b) low cellulose content (c) low moisture content (d) poor nitrogen content.

Last Answer : (d) poor nitrogen content.

Description : The given diagrammatic OH OH HOCH O 2 X representation shows one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and the one ... Component (a) Cholesterol Guanine (b) Amino acid NH2 (c) Nucleotide Adenine (d) Nucleoside Uracil

Last Answer : (d) Nucleoside Uracil

Description : Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199

Last Answer : Answer : B

Description : Which one of the following pairs is matched correctly? a. Ions - covalent bonds b. Carbon - organic compounds c. Glucose - enzyme d. Thymine - amino acid

Last Answer : b. Carbon - organic compounds

Description : An example of an organic material is __________. a. Pea gravel b. Perlite c. Leaf mold d. Vermiculite

Last Answer : Leaf mold

Description : Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids? (A) Starch (B) Cellulose (C) Proteins (D) Nucleic acids

Last Answer : (C) Proteins

Description : In certain amino acids, which elements is found in addition to carbon, hydrogen, nitrogen and oxygen?

Last Answer : Sulphur

Description : (1) the action of ultraviolet rays on oxygen Explanation: The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO ) and volatile organic compounds (VOCs), such as xylene, ... violet rays. NOx, CO, and VOCs are called ozone precursors. CO + 2O2 + CO2 + O3

Last Answer : Water is not effective in extinguishing a fire caused by petrol because - (1) the flame is too hot for water to cool it down (2) water and petrol react chemically (3) water and petrol are ... (4) water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn

Description : Which element found in all organic compounds? (1) carbon (2) nitrogen (3) calcium (4) none of them

Last Answer : (1) carbon Explanation: Carbon is found in all organic matter, but NOT in inorganic matter organic means chemical compounds with carbon in them. In a more general sense, organic refers to living things.

Description : The process of decomposition of organic matter is termed as

Last Answer : Ans. Humification

Description : Decomposition of organic matter is due to (a) Virus (b) Fungi (c) Bacteria (d) None of these

Last Answer : Ans:(c)

Description : In very first stage of decomposition of the organic matter in sewage A. Nitrites are formed B. Nitrates are formed C. Carbondioxide is formed D. Ammonia is formed

Last Answer : ANS: D

Description : The sewage treatment units in which anaerobic decomposition of organic matter is used, are called A. Imhoff tanks B. Trickling filters C. Sludge sedimentation tanks D. None of these

Last Answer : ANS: B

Description : The chemical decomposition produced by micro-organisms on certain organic matter is

Last Answer : called fermentation.

Description : Pick out the wrong statement. (A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days ... BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these

Last Answer : (D) None of these

Description : Nitrogen in plant sample is estimated by: a. Refreshrometer b. Kjeldhal’s apparatus c. Spectrophotometer d. All of above

Last Answer : Kjeldhal’s apparatus

Description : Pick out the wrong statement. (A) Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions ornitrate ... nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Last Answer : (D) Ammonium nitrate fertiliser is obtained as a by-product in an integrated steel plant having by-product coke ovens

Description : Antagonistic effect of Fe on Zn availability in sweet orange causes: a. Leaf drop b. Fruit drop c. Reduce fruit weigh d. Zn deficiency

Last Answer : Zn deficiency

Description : Zinc deficiency is sweet orange causes a. Chlorosis in fruit b. Chlorosis in leaves c. Streaks on leaves d. sweetness of fruit.

Last Answer : Chlorosis in leaves

Description : Bloosom end rot of tomato is due to a. Infection/disease b. Boron/ Ca. deficiency c. Insect attack d. Nutritional deficiency

Last Answer : Boron/ Ca. deficiency

Description : Hollow heart of potato is a a. Disease b. Disorder c. Insect attack d. Deficiency

Last Answer : Disorder

Description : Compounds possessing hormone like properties which have small molecular weight, are termed as : a. Auxins b. Gibberellins c. Kinins d. None of these

Last Answer : Kinins

Description : The compounds which inhibit the activity of auxins are known as: a. Auxin antagonists b. Antiauxins c. Epinostic agent d. All of above

Last Answer : Antiauxins

Description : Auxin antagonists compounds interact with auxins as: a. Counteract b. Increase c. Decrease d. None of the above

Last Answer : Counteract

Description : Most house plants, except cacti, prefer a highly organic and a. Neutral growing medium b. Alkaline growing medium c. Acidic growing medium d. None of above

Last Answer : Acidic growing medium

Description : The renewal of NO3 involves release of ___________ from organic fraction of the soil and its rapid nitrification: a. NO2 b. NH4 c. N d. NO

Last Answer : NH4

Description : Organic crop cultivation is : a. With fertilizers b. Without fertilizers c. With organic manures d. None of these

Last Answer : Without fertilizers

Description : For an early harvest, cucurbits are grown on: Rocky soils Sandy soils Clayey soils Organic soils

Last Answer : Sandy soils

Description : What type of mulches reduce soil temperature? a. Organic mulch b. Gray polythene c. Black polythene d. Transparent polythene

Last Answer : Organic mulch

Description : The α-carbon of all the amino acids is a chirality center except for __________. (a) Glycine (b) Threonine (c) Proline (d) Aspartic acid

Last Answer : Glycine

Description : Black cotton soils are a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering* b) Compacted and ... underneath d) Dark brown earthy materials formed due to partial or complete decomposition of vegetable matter

Last Answer : a) Heavy clay soils varying from clay to Loam, with clay content of 40 to 50% formed by decomposition of rocks by long continued weathering*

Description : During deficiency of thiamine the concentration of the following compound rises in blood and intracellular fluid: (A) Glycogen (B) Sugar (C) Amino acids (D) Pyruvic acid

Last Answer : Answer : D

Description : Phrynoderma is a deficiency of (A) Essential fatty acids(B) Proteins (C) Amino acids (D) None of these

Last Answer : Answer : A

Description : During deficiency of thiamine the concentration of the following compound rises in blood and intracellular fluid: (A) Glycogen (B) Sugar (C) Amino acids (D) Pyruvic acid

Last Answer : (D) Pyruvic acid

Description : At fruit bud differentiation, nitrogen contents are _____________: a. Low b. Medium` c. High d. Very high

Last Answer : Low

Description : Nitrogen in vegetables is needed for a. Vegetative growth b. Ripening /maturity c. Reproductive growth d. None of these

Last Answer : Vegetative growth

Description : Cracking in tomato fruit is due to: a. High nitrogen level b. Temperature fluctuations c. Soil moisture fluctuations a. All of these

Last Answer : All of these

Description : Excessive soil moisture, late in the season cause. a. Decrease in TSS decrease in dry matter b. Increase in TSS decrease in dry matter c. Decrease in TSS increase in dry matter d. None of above

Last Answer : Decrease in TSS increase in dry matte

Description : Which of the following reactions is suitable for the preparation of α-amino acids? (a) Schmidt reaction (b) Hofmann's degradation of amides (c) Strecker's synthesis (b) Reduction of nitro compounds

Last Answer : Strecker's synthesis

Description : Which one of the following compounds form zwitterions? (a) carbonyl compounds (b) amino acids (c) phenols (d) heterocyclic compounds

Last Answer : amino acids

Description : Proteins are chains of _____ that sometimes function as _____. a. monosaccharaides; energy compounds b. lipids; structural materials c. amino acids; enzymes d. disaccharides; enzymes

Last Answer : c. amino acids; enzymes

Description : What type organic macro molecule is form polymerization reaction between amino acids?

Last Answer : This macromolecule is a protein.

Description : What type organic macro-molecule is form polymerization reaction between amino acids?

Last Answer : This macromolecule is a protein.

Description : Who among the following demonstrated experimentally that simple organic molecules like sugar s and amino acids could be produced from inorganic molecules if early earth atmosphere is created (a) Donald Brown (b) A.I. Oparin (c) Oscar Miller (d) Stanley Miller

Last Answer : Ans:(d)

Description : Across a membrane phospholipids act as carrier of (A) Organic compounds (B) Inorganic ions (C) Nucleic acids (D) Food materials

Last Answer : Answer : B

Description : Which one of the following structural formulae of two organic compounds is correctly identified along with its related function? (a) B : Adenine - A nucleotide that makes up nucleic acids (b) A : Triglyceride - ... ) B : Uracil - A component of DNA (d) A : Lecithin - A component of cell membrane

Last Answer : (d) A : Lecithin - A component of cell membrane