The given diagram shows a stem tendril helping a plant to climb up a support.The type of growth movement exhibited by the plant is
Correct answer: B. Nutation
- A. Epinasty
- B. Nutation
- C. Hyponasty
- D. Nyctinasty
Explanation
Nutation is a type of growth movement where a plant part, such as a stem or tendril, exhibits revolving or spiraling motion. The tip of a climbing plant's stem or tendril may sway back and forth (nutation) as it searches for a support. So option B is correct. All other processes are not related to the climbing movement shown.
Last updated
About Plant Growth Regulators
Plant growth regulators are chemical messengers that control growth, development and responses to the environment. The topic covers auxins, gibberellins, cytokinins, abscisic acid and ethylene, including cell elongation, apical dominance, tropisms, seed germination, dormancy, fruit ripening and leaf fall, with growth promoters distinguished from inhibitors.
Practise Forms and Functions of Plants
272 free Forms and Functions of Plants MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
The hormone(s) synthesised in the meristematic tissue of the plant shoot and root is/ areI. Abscisic acidII. AuxinIII. Cytokinin
Auxins and gibberellins are plant hormones. The common role of these hormones is to
The given diagrams, I and II, show the growth of a plant without and with hormone treatment. Based on the shown effect in diagram II, the hormones used in the mixture must be
Consider the given diagram. The phenomenon which induces the growth of plant I is
The option that identifies the plant's response provoked by red and blue light is