Linear Plant Growth Equation Explained — NEET Biology
📚 Practice ConceptLt = L0 + rt Lt = length at time 't' L0 = length at time 'zero' r = growth rate / elongation per unit time.
Assertion (A): Auxins are plant growth regulators that promote cell elongation. Reason (R): The term auxin comes from the Latin word ‘auxein’ meaning ‘to grow’.
View solution & NCERT explanation
Correct answer: C — If assertion is true but reason is false.
NCERT confirms auxins promote growth including cell elongation (Assertion true). However, NCERT states “Auxins (from Greek ‘auxein’ : to grow)” - the term comes from Greek, not Latin. The etymology swap creates a plausible false statement since both Greek and Latin are classical languages used in scientific terminology.
What does NCERT say about Lt L0 rt Lt?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.