Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

AIIMS 201826 May

Exam: AIIMS
Year: 2018
Date: 26 May
Subject: Botany
Chapter: Plant - Growth and Development

AIIMS 2018 · 26 May · Botany · Plant - Growth and Development

Which among the following are auxins?

Which among the following are auxins?

Options

AIAA, IBA, CK
B $\mathrm{GA}_3, 2,4-\mathrm{D}, \mathrm{IAA}$
CIAA, IBA, NAA
D $2,4-\mathrm{D}, \mathrm{IAA}, \mathrm{ABA}$

Correct answer

C. IAA, IBA, NAA

Step-by-step solution

IAA is Indole 3 acetic acid is universal natural auxin. IBA is indole 3 butyric acid with auxin like activity. It is both naturally occurring and synthetically prepared. NAA is napthalene acetic acid which is a synthetic auxin.

Practice Plant - Growth and Development on Quantrex Academy →

More from Plant - Growth and Development

Heterophyllous development in response to environment is an example of which of the… NEET 2026 Length of the stem at time 0 is 20 cm. The arithmetic growth rate is 30 cm per day. What… NEET 2026 Which of the following plant growth regulators promotes internode elongation prior to… NEET 2026 Which one of the following is not a characteristic of plant cells in the phase of… NEET 2026 Match List I with List II : List I (Growth Regulator) List II (Function/Effect) A. 2,4 -D… NEET 2026 Which of the following plant growth regulators is used as herbicide ? NEET 2026 Which one of the following phytohormones promotes nutrient mobilization which helps in… NEET 2025 Read the following statements on plant growth and development. (A) Parthenocarpy can be… NEET 2025 Full Plant - Growth and Development list All AIIMS PYQs