Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

If the tip of a plant is cut off, why may phototropism become weak?

Answer and explanation

Correct answer: Because auxin is produced at the tip

Phototropism is the directional growth of a plant shoot in response to light. The shoot tip produces auxin, a plant hormone that promotes cell elongation. When light comes from one side, auxin distribution helps the shaded side elongate more, causing the shoot to bend toward light. Cutting off the tip removes an important source of auxin, so this unequal growth and bending may become weak. Blood, spinal cord, and insulin are unrelated to plant phototropism.

Related tags

Control CoordinationAuxinPhototropismControl And CoordinationWorld Of LivingScienceClass 10 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.