Who discovered the C 4 pathway of Photosynthesis?
Bose
Calvin
Hatch and Slack
Hill
Photophosphorlation is -
Formation of ATP in the presence of light
formation of ATP in the presence of oxygen
Formation of ATP in the dark
None of these
Dark reaction in Photosynthesis occurs in –
Presence of light only
Presence of dark only
Both in presence of light and dark
None of the above
Epimer of D-glucose is -
L-glucose
D-glucose
D-fructose
L-mannose
Enantiomer of D-fructose is -
D-galactose
D-glucose
L-fructose
L-glucose
Following is monounsaturated fatty acid -
Palmitic acid
Oleic acid
Linoleic acid
Stearic acid
Following amino acid is with a non-polar R group-
Lysine
Glutamic acid
Leucine
Serine
Following protein has secondary level of structure -
Insulin
Haemoglobin
Keratin
None of these
Following is also known as Vitamin B 6 -
Thiamin
Niacin
Pyridoxin
Pantothenic acid
Solarization is related to the process of
Respiration
Germination
Photosynthesis
Flowering
End product of glycolysis is -
Pyruvic acid
Citric acid
Malic acid
Oxalic acid
End product of B-oxidation of fatty acid is -
Pyruvic acid
CO 2
Acetyl CoA
None of these
All the naturally occurring amino acids present in protein are stereoisomer except -
Lysine
Glutamic acid
Glycine
Alanine
The conversion of PEP to Pyruvate is catalysed by which enzyme ?
PEP kinase
Pyruvate kinase
PEP carbylase
None of the above
Pyruvate is converted to Acetyl CoA by the enzyme-
Pyruvate kinase
Pyruvate Dehydrogenase
pyruvate carboxylase
None of the above
The excess of glucose is stored in plants in the from of -
Glucose
Starch
Cellulose
Glycogen
Which of the following is enzymatically active molecule ?
Apoenzyme
Co-enzyme
Holoenzyme
Prosthetic group
Which of the following is an immobile element within plant-
Mg
Na
Ca
Mo
Which part of DNA is found at the center of the molecule?
Base
Acid
Phosphate
sugar
How is saturated lipid different from an unsaturated lipid –
Saturated lipid more hydrogen bond than unsaturated lipid
Saturated lipid contains no hydrogen bonds while unsaturated lipid does
Saturated lipid does not have links while unsaturated lipid docs
All of the above
Which of the following statements about enzymes is true-
Some substrates can make enzymes change shape slightly
All enzymes have the same pH optima
The active site of all enzymes have the same three dimensional shape
None
Which of the following amino acid lacks an asymmetrical carbon atom-
Serine
Glutamine
Glycine
Histidine
Isomers that differ at only one of the asymmetric centerare called-
Dextrorotatory
Prochiral
Diastereomers
Isoelectric
Hexokinase the first enzyme in the glycolytic pathway is-
Lyase
Oxidoreductase
Transferase
Isomerase
All the following have 18 carbon atoms except-
Linoleic acid
Palmitic acid
Linolenic acid
Steric acid
In plants the final electron acceptor in the light reaction is-
CO 2
H ₂ O
NADP+
O 2
Iodine number is a measure of-
Degree of rancidity of a fat
Measure of volatility fatty acids in a fat
Degree of unsaturation of a fat
Measure of number of -OH groups in a fat
Among the following which is not a standard amino acid-
Ornithine
Histamine
Citrulline
All of the above
As the degree of unsaturation increases in a fatty acid the melting point will
increase
decrease
remains the same
none
In the formation of macromolecules type of reaction that join two subunits-
Hydrophobic reaction
Hydrolysis reaction
Dehydration reaction
Denaturationreaction
The chloroplast contain the following in descending order-
Chlorophyll>Phospholipid>Protein
Protein> Chlorophyll> Phospholipid
Protein Phospholipid>Chlorophyll
Phospholipid>Protein>Chlorophyll
Seed is dormant or non dormant is determined by the ratio of-
ABA to GA
GA to Cytokinin
Auxin to GA
ABA to Auxin
Which amino acid is the precursor for ethylene biosynthesis -
Arginine
Leucine
Histidine
Methionine
Barley endosperm test has been designed for the bioassay of-
ABA
Auxin
GA
Cytokinin
Precursor for gibberellins biosynthesis is-
Traumatic acid
Mevalonic acid
Glutamic acid
Aspartic acid
Generally pulses are deficit in-
Tyrosine
Methionine
Tripsin
b or c both
Generally cereals are deficit in-
Lysine
Tryptophane
Threonine
All of the above
Generally leafy vegetables are deficit in-
Methionine
Lysine
Tryptophan
Glycin
Mostly oilseeds are deficit in-
Lysine
Methionine
Tryptophan
Glycin
Storage sprouting of potato can prevented by-
IAA
IBA
NAA
MH (Malic hydrazide)
Sleep disease of flower is a hormonal disease due to-
Cytokinin
Ethylene
Auxin
GA3
Most effective light in phototropisim -
Blue
violet
both
Red
An instrument used for growth of plant measure in seconds-
Monograph
Crescograph
Siesograph
Anemometer
Vernalization term was coined by -
Lysenko
Porter
Miller
Yabuta
First naturally cytokinin was found in-
Maize
Rice
Wheat
Pea
Head quarter of Indian Journal of Plant Physiology is at-
IARI, New Delhi
BHU, Varanasi
JNU, New Delhi
CSAU, Kanpur
Plant movement required for increase in size or number of cells-d
Tropic movement
Nastic movement
Hydration movement
Turger movement
Higher rate of transpiration occurs in-
Plant in open
Plant in dark
Plant exposed to light
Plants under glass cover
Growth is directly associated with-
Increased in cell size of an organ
Cell multiplication of an organ
An increase in the amount of some cell structure
An increase in the amount of cytoplasm
Which of following plants shows maximum rate of photosynthesis-
Barley
Cotton
Maize
Mango