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

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
by

1 Answer

Answer :

Indole-3-acetic acid (IAA)
by

Related questions

The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of (a) NAA, 2, 4-D (b) Phenyl acetic acid (c) Cytokinin (d) IAA, IBA.

Description : The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of (a) NAA, 2, 4-D (b) Phenyl acetic acid (c) Cytokinin (d) IAA, IBA.

Last Answer : a) NAA, 2, 4-D

The first ever auxin discovered was: a. IBA b. IPA c. IAA d. None of above

Description : The first ever auxin discovered was: a. IBA b. IPA c. IAA d. None of above

Last Answer : IAA

In green plants light favour the formation of a. Auxin b. GA c. ABA d. IBA

Description : In green plants light favour the formation of a. Auxin b. GA c. ABA d. IBA

Last Answer : Auxin

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

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

Cell elongation in internodal regions of the green plants takes place due to (a) indole acetic acid (b) cytokinins (c) gibberellins (d) ethylene

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

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? Select the correct answer from the following: (a) 1 and 3 (b) 1, 2, and 4 (c) 2 and 4 (d) 1, 2, 3, and 4

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)

Seed dormancy is regulatedby – (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene

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).

One of the commonly used plant growth hormone in tea plantations is (a) ethylene (b) abscisic acid (c) zeatin (d) indole-3-acetic 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.

Which one of the following growth regulators is known as ‘stress hormone’? (a) Abscisic acid (b) Ethylene (c) GA3 (d) Indole 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

Seed dormancy is regulatedby (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene

Description : Seed dormancy is regulatedby (1) Abscisic acid (2) Gibberellic acid (3) Indole acetic acid (4) Ethylene

Last Answer : Abscisic acid 

Hormone primarily connected with cell division is (a) IAA (b) NAA (c) cytokinin/zeatin (d) gibberellic acid.

Description : Hormone primarily connected with cell division is (a) IAA (b) NAA (c) cytokinin/zeatin (d) gibberellic acid.

Last Answer : (c) cytokinin/zeatin

Seed potato dormancy is broken by ? a IAA b NAA c Thiourea d CCC

Description : Seed potato dormancy is broken by ? a IAA b NAA c Thiourea d CCC

Last Answer : c Thiourea

Which acid is produced when milk gets sour? (1) Tartaric acid (2) Butyric acid (3) Lactic acid (4) Acetic acid

Description : Which acid is produced when milk gets sour? (1) Tartaric acid (2) Butyric acid (3) Lactic acid (4) Acetic acid

Last Answer : (3) Lactic acid

For berry elongation in Grape ____ hormone is used a. IAA b. IBA c. GA3 d. ABB

Description : For berry elongation in Grape ____ hormone is used a. IAA b. IBA c. GA3 d. ABB

Last Answer : c. GA3

During propagation through cuttings, which hormone(s) is/are used for root promotion? a. ABA b. Seradix c. NAA d. All above

Description : During propagation through cuttings, which hormone(s) is/are used for root promotion? a. ABA b. Seradix c. NAA d. All above

Last Answer : Seradix

Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin : cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with IAA

Description : Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin : cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with IAA

Last Answer : Ans. ((d))

You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots? (a) IAA and gibberellin (b) Auxin and cytokinin (c) Auxin and abscisic acid (d) Gibberellin and abscisic acid

Description : You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots? ... gibberellin (b) Auxin and cytokinin (c) Auxin and abscisic acid (d) Gibberellin and abscisic acid

Last Answer : (b) Auxin and cytokinin

Growth regulating herbicides that act simi lar to that of endogenous auxin (IAA) a). Benzoic acid b). pyridine carboxylic acid c). quinoline carboxylic acid d). All

Description : Growth regulating herbicides that act simi lar to that of endogenous auxin (IAA) a). Benzoic acid b). pyridine carboxylic acid c). quinoline carboxylic acid d). All

Last Answer : d). All

What is the role of indole acetic acid in plants ?

Description : What is the role of indole acetic acid in plants ?

Last Answer : Indole acetic acid helps to heal plant wounds.

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 seeds of desert plants will not germinate unless they have been subjected to a high temperature for some time Questions Select the correct answer from the following: (a) 1, 2, and 4 (b) 2 and 4 (c) 1, 2, and 4 (d) 1, 2, 3, and 4

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)

Maleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above

Description : Maleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above

Last Answer : GA

Femaleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above

Description : Femaleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above

Last Answer : None of above

In plants auxin are mainly present in: a. Root tips b. Stem end c. Shoot tips d. Leaf margins

Description : In plants auxin are mainly present in: a. Root tips b. Stem end c. Shoot tips d. Leaf margins

Last Answer : Shoot tips

Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone (a) auxin (b) cytokinin (c) ethylene (d) abscisic acid.

Description : Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone (a) auxin (b) cytokinin (c) ethylene (d) abscisic acid.

Last Answer : (a) auxin

It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield? (a) Cytokinin and Abscisic acid (b) Auxin and Ethylene(c) Gibberellin and Cytokinin (d) Gibberellin and Abscisic acid

Description : It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield? ... (b) Auxin and Ethylene (c) Gibberellin and Cytokinin (d) Gibberellin and Abscisic acid

Last Answer : (b) Auxin and Ethylene

Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when pla(a) It made possible the isolation and exact identification of auxin. (b) It is the basis for quantitative determination of small amounts of growth-promoting substances. (c) It supports the hypothesis that IAA is auxin. (d) It demonstrated polar movement of auxinsced on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?

Description : Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what ... . (c) It supports the hypothesis that IAA is auxin. (d) It demonstrated polar movement of auxins

Last Answer : (a) It made possible the isolation and exact identification of auxin.

Synthesis of Indole-3-Acetic Acid -Biology

Description : Synthesis of Indole-3-Acetic Acid -Biology

Last Answer : answer:

Effect of indole acetic acid on plant growth. -Biology

Description : Effect of indole acetic acid on plant growth. -Biology

Last Answer : answer:

Effect of indole acetic acid on plant growth. -Biology

Description : Effect of indole acetic acid on plant growth. -Biology

Last Answer : answer:

What does indole acetic acid help to do ?

Last Answer : Helps to heal wounds.

Increased urinary indole acetic acid is diagnostic of (A) Maple syrup urine disease (B) Hartnup disease (C) Homocystinuia (D) Phenylketonuria

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

Seed dormancy is due to the (a) ethylene (b) abscisic acid (c) IAA (d) starch.

Description : Seed dormancy is due to the (a) ethylene (b) abscisic acid (c) IAA (d) starch.

Last Answer : (b) abscisic acid

Which of the following prevents the fall of fruits? (a) GA3 (b) NAA (c) Ethylene (d) Zeatin

Description : Which of the following prevents the fall of fruits? (a) GA3 (b) NAA (c) Ethylene (d) Zeatin

Last Answer : (b) NAA

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−hydroxy butyric acid (C) Pyruvic acid (D) Methyl malonic acid

Last Answer : Answer : C

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

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

Last Answer : Answer : C

Which of the following are classified as essential fatty acids? (A) Arachidonic acid (B) Oleic acid (C) Acetic acid (D) Butyric acid

Description : Which of the following are classified as essential fatty acids? (A) Arachidonic acid (B) Oleic acid (C) Acetic acid (D) Butyric acid

Last Answer : Answer : A

Which one of the following is found in Vinegar? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Description : Which one of the following is found in Vinegar? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Last Answer : (1) Acetic acid Explanation: Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. It is mainly used as a cooking ingredient.

The ethyl derivative of acetoacetic ester on basic-hydrolysis gives (a) Acetic acid (b) Acetic acid and propionic acid (c) Propionic acid (d) Acetic acid and n-butyric acid

Description : The ethyl derivative of acetoacetic ester on basic-hydrolysis gives (a) Acetic acid (b) Acetic acid and propionic acid (c) Propionic acid (d) Acetic acid and n-butyric acid

Last Answer : Acetic acid

Propanenitrile undergoes acid-hydrolysis to give (a) Formic acid(b) Propionic acid(c) Acetic acid(d) Butyric acid

Description : Propanenitrile undergoes acid-hydrolysis to give (a) Formic acid (b) Propionic acid (c) Acetic acid (d) Butyric acid

Last Answer : Propionic acid

Which of the following is NOT an organic acid? w) butyric (pron: byu-TEER-ik) x) sulfuric y) acetic z) citric

Description : Which of the following is NOT an organic acid? w) butyric (pron: byu-TEER-ik) x) sulfuric y) acetic z) citric

Last Answer : ANSWER: X -- SULFURIC

Which one of the following is found in Vinegar ? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Description : Which one of the following is found in Vinegar ? (1) Acetic acid (2) Propionic acid (3) Formic acid (4) Butyric acid

Last Answer : Acetic acid 

The acid present in red ants is (1) Acetic acid (2) Butyric acid (3) Caproic acid (4) Formic acid

Description : The acid present in red ants is (1) Acetic acid (2) Butyric acid (3) Caproic acid (4) Formic acid 

Last Answer : Formic acid

Auxin destruction activity is inhibited by : a. Blue light b. Red light c. Green light d. None of the above

Description : Auxin destruction activity is inhibited by : a. Blue light b. Red light c. Green light d. None of the above

Last Answer : Red light

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

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

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

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

Last Answer : Counteract

The hormone produced during adverse environmental conditions is (a) benzyl aminopurine (b) bichlorophenoxy acetic acid (c) ethylene (d) abscisic acid

Description : The hormone produced during adverse environmental conditions is (a) benzyl aminopurine (b) bichlorophenoxy acetic acid (c) ethylene (d) abscisic acid

Last Answer : (d) abscisic acid

Which plant growth regulator is used for ripening? a) GA b) IBA c) Ethylene d) Cytokinin

Description : Which plant growth regulator is used for ripening? a) GA b) IBA c) Ethylene d) Cytokinin

Last Answer : c) Ethylene

Root development is promoted by (a) abscisic acid (b) auxin (c) gibberellin (d) ethylene

Description : Root development is promoted by (a) abscisic acid (b) auxin (c) gibberellin (d) ethylene

Last Answer : (d) ethylene.

Hormone pair required for a callus to differentiate is a. auxin and cytokinin b. auxin and ethylene c. auxin and abscisic acid d. cytokinin and gibberellins

Description : Hormone pair required for a callus to differentiate is a. auxin and cytokinin b. auxin and ethylene c. auxin and abscisic acid d. cytokinin and gibberellins

Last Answer : a. auxin and cytokinin

Naphthalene acetic acid plant hormone. -Biology

Description : Naphthalene acetic acid plant hormone. -Biology

Last Answer : answer: