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 phototropism is normal in a plant but chemotropism is blocked, which process may be affected?

Answer and explanation

Correct answer: Growth of the pollen tube towards the ovule

Phototropism is a directional growth response to light, whereas chemotropism is a directional growth response to chemical substances. During fertilisation in flowering plants, the pollen tube grows towards the ovule in response to chemical signals released by tissues around it. Thus, blocked chemotropism may affect pollen-tube growth, making option A correct. Option B describes phototropism, while C and D are animal processes.

Related tags

ChemotropismPhototropismPollen TubePlant HormonesControl And CoordinationScienceClass 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.