Plant Physiology And Biochemistry 03 — Agri Master Mind
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