Description : Effect of indole acetic acid on plant growth. -Biology
Last Answer : answer:
Description : What is the role of indole acetic acid in plants ?
Last Answer : Indole acetic acid helps to heal plant wounds.
Last Answer : Helps to heal wounds.
Description : Increased urinary indole acetic acid is diagnostic of (A) Maple syrup urine disease (B) Hartnup disease (C) Homocystinuia (D) Phenylketonuria
Last Answer : Answer : B
Description : Consider the following pairs Plant hormone Function/Effect 1. Indole-3 acetic acid - Rooting in cuttings 2. Gibberellic acid - Stomatal closure 3. Ethylene - Fruit ripening 4. Zeatin - Cell division Which of the above pairs are correctly matched ... 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 1, 2, 3, and 4
Last Answer : Ans:(b)
Description : Which of the following statements are true? 1. Cytokinins promote stomatal opening 2. Sprays of indole -3 acetic acid can inhibit premature fruit fall 3. The growth movements caused by a unilateral stimulus are known as nastic movements 4. The ... 4 (b) 2 and 4 (c) 1, 2, and 4 (d) 1, 2, 3, and 4
Last Answer : Ans:(a)
Description : Seed dormancy is regulatedby – (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene
Last Answer : (1) Abscisic acid Explanation: The transition from dormancy to germination in seeds is a key physiological process during the lifecycle of plants. Abscisic acid (ABA) is the sole plant ... acts through a gene expression network involving the transcription factor ABSCISIC ACID INSENSITIVE 3 (ABI3).
Description : The major auxin produced in plants is: a. Indole-3-butyric acid (IBA) b. Naphthalene acetic acid (NAA) c. Indole-3-acetic acid (IAA) d. Ethylene
Last Answer : Indole-3-acetic acid (IAA)
Description : Cell elongation in internodal regions of the green plants takes place due to (a) indole acetic acid (b) cytokinins (c) gibberellins (d) ethylene
Last Answer : (c) gibberellins
Description : Which one of the following acids is a derivative of carotenoids? (a) Indole-3-acetic acid (b) Gibberellic acid (c) Abscisic acid (d) Indole butyric acid
Last Answer : (c) Abscisic acid
Description : One of the commonly used plant growth hormone in tea plantations is (a) ethylene (b) abscisic acid (c) zeatin (d) indole-3-acetic acid.
Last Answer : d) indole-3-acetic acid.
Description : Which one of the following growth regulators is known as ‘stress hormone’? (a) Abscisic acid (b) Ethylene (c) GA3 (d) Indole acetic acid
Last Answer : (a) Abscisic acid
Description : Seed dormancy is regulatedby (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene
Last Answer : Abscisic acid
Description : Farmers in a particular region were concerned that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum ... yellow leaves and spraying the remaining green leaves with 2, 4, 5-trichlorophenoxy acetic acid
Last Answer : (a) Application of iron and magnesium to promote synthesis of chlorophyll
Description : Indole group of tryptophan responses positively to (A) Glyoxylic acid (B) Schiff’s reagent (C) Biuret test (D) Resorcinol test
Last Answer : Answer : A
Description : The amino acid which contains an indole group is (A) Histidine (B) Arginine (C) Cystine (D) Tryptophan
Last Answer : Answer : D
Description : The amino acid containing an indole ring: (A) Tryptophan (B) Arginine (C) Threonine (D) Phenylalanine
Description : The amino acid which contains an indole group is (A) Histidine (B) Arginine (C) Glycine (D) Tryptophan
Description : Choose the right combination: (A) Quinine', antimalarial, isoquinoline alkaloid (B) Reserpine, -antihypertensive, indole alkaloid (C) Quantitative microscopy, stomatal number, myrrh (D) Palmitic acid, salicylic acid , fatty acids
Last Answer : (B) Reserpine, -antihypertensive, indole alkaloid
Description : The chemical nature of GA3 is (a) Phenolic (b) Terpene (c) Purine (d) Indole
Last Answer : (b) Terpene
Description : Anaerobic degradation of proteins brought about by bacteria and fungi give the products like A- mercaptans and indole B-H2S C-both (a) and (b) D-None of these
Last Answer : both (a) and (b)
Description : Naphthalene acetic acid plant hormone. -Biology
Description : If any water contains acetic acid then its pH value is less than 7. The pH value of rain water is 5-6. Does this water contain acetic acid ?
Last Answer : Absolutely. There are different types of toxic gases in our atmosphere , such as: SO3, CO2, NO2 , etc. Produces which mixes with rain water and falls to the ground.
Description : What are the chemical signals of acetic acid ?
Last Answer : Chemical signals of acetic acid CH3COOH ( responsible for the sour taste and odor of vinegar)
Description : 100 mL of 0.3 M acetic acid is shaken with 0.8 g wood charcoal. The final concentration of acetic acid in the solution after adsorption is 0.125 M. Th
Last Answer : 100 mL of 0.3 M acetic acid is shaken with 0.8 g wood charcoal. The final concentration of acetic acid in the ... g` C. `1.31 g` D. `0.131 g`
Description : 3 gram of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the fitr
Last Answer : 3 gram of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was ... B. `36 mg` C. `42 mg` D. `54 mg`
Description : What product is formed when acetic acid heated with `P_(2)O_(5)`
Last Answer : What product is formed when acetic acid heated with `P_(2)O_(5)` A. Acetyl chloride B. Acetate ester C. Acetic anhydride D. Acetaldehyde
Description : Formic acid can be distinguish from acetic acid because formic acid
Last Answer : Formic acid can be distinguish from acetic acid because formic acid A. release `H_(2)` with sodium B. ... `AgNO_(3)` D. turns red litmus to blue
Description : Acetic acid when heated `(300^(@)C)` with MnO gives
Last Answer : Acetic acid when heated `(300^(@)C)` with MnO gives A. formaldehyde B. acetaldehyde C. acetone D. butanone
Description : 25 mL of household bleach solution was mixed with 30 mL of o.50 M Kl and 10 mL of 4N acetic acid. In the titration of the liberated iodine, 48 mL of 0
Last Answer : 25 mL of household bleach solution was mixed with 30 mL of o.50 M Kl and 10 mL of 4N acetic acid. In the titration ... B. 0.96 M C. 0.24 M D. 0.024 M
Description : A person having osteoporosis is suffering from lead poisoning. Ethlene diamine tetra acetic acid (EDTA) is administered for this condition. The best f
Last Answer : A person having osteoporosis is suffering from lead poisoning. Ethlene diamine tetra acetic acid (EDTA ... C. disodium salt D. calcium dihydrogen salt
Description : Consider the following reaction, Nitrite + Acetic acid + Thiourea `to Na_(2) uarr + HSCN +2H_(2)O`. Formation of the product in the above reaction can
Last Answer : Consider the following reaction, Nitrite + Acetic acid + Thiourea `to Na_(2) uarr + HSCN +2H_(2)O ... (4)// HCl`, when colourless solution is formed.
Description : Which is formed when ethanol reacts with acetic acid
Last Answer : Which is formed when ethanol reacts with acetic acid A. `CH_(3)COOC_(2)H_(5)` B. `C_(2)H_(5)OC_(2)H_(5)` C. `CH_(3)OCH_(3)` D. `CH_(3)CH_(2)CHO`
Description : How can we react dehydrating agent with acetic acid?
Last Answer : Dehydration of acetic acid to prepare acetic anhydride occur at 8oo oC.
Description : How can reaction with ammonium acetate from acetic acid?
Last Answer : The chemical reaction is:(NH4)2CO3 + 2 CH3COOH = 2 CH3COONH4 + CO2 + H2O
Description : When the stopper is removed from a partly filled bottle containing solid and liquid acetic acid at 16.7 and degC a strong vinegar like odor is noticeable immediately. How many acetic acid phases must?
Last Answer : When the stopper is removed from a partly filled bottlecontaining solid and liquid acetic acid at 16.7 °C, a strongvinegar like odor is noticeable immediately. How many acetic acidphases must be present in the bottle? Explain.
Description : What is acetic acid melting point?
Last Answer : The acetic acid melting point is approx. 17 oC.
Description : How many number of carbon atoms are present in 0.062 mol acetic acid HC2H3O2?
Last Answer : The number of carbon atoms which are present in 0,062 mol acetic acid HC2H3O2 is 0,747.10e23.
Description : How many grams is in one mole of acetic acid?
Last Answer : The molar mass of acetic acid is 60,05 g.
Description : What is the reaction between soda lime and acetic acid?
Last Answer : The chemical reaction is:Ca(OH)2 + 2 CH3COOH - Ca(CH3COO)2 + 2 H2O
Description : What is the balanced equation for the reaction of acetic acid being neutralized by sodium hydroxide?
Last Answer : CH3COOH + NaOH ==> H2O + CH3COONa
Description : How much stronger (in percentage) is vinegar with 9 acetic acid content in comparison with a vinegar with 5 acetic acid content?
Last Answer : Thank you! I would like to make homemade all purpose cleaner and the recipe calls for a 1 cup of vinegar with 5% acetic acid content mixed with a 1 cup of water. I only have vinegar with 9% acetic acid. Therefore ... can use 1/2 - 3/4 cup of the 9% vinegar + 1 cup water (or any multiple thereof).
Description : Which of the following is not a component of coenzyme A? (A) Pantothenic acid (B) Adenylic acid (C) Acetic acid (D) Sulfhydryl group
Last Answer : Answer : C
Description : In beri beri there will be accumulation of _________ in blood. (A) Aceto acetic acid (B) β−hydroxy butyric acid (C) Pyruvic acid (D) Methyl malonic acid
Description : In beri beri there will be accumulation of _______ in blood. (A) Aceto acetic acid (B) β-OH butyric acid (C) Pyruvic acid (D) Methyl malonic acid