RRB Technician Grade 3 previous year question
What specialisation is commonly found in the epidermal cells of plant roots to aid in their primary function?
Asked in RRB Technician Grade 3 (10 Mar 2026 Shift 3) · Science
Tap an option to check your answer.
Show answer and explanation
Correct answer: (D) Long, hair-like extensions
Root epidermal cells develop long, hair-like extensions called root hairs, which increase surface area for water and mineral absorption.
हिंदी में प्रश्न
पादप मूलों की अधिचर्म कोशिकाओं में सामान्यत: कौन-सी विशिष्टता पाई जाती है, जो उनके प्राथमिक कार्य में सहायता करती है?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) लंबे, रोम जैसे विस्तार
जड़ की बाह्यत्वचीय कोशिकाएं लंबे रोमनुमा विस्तार (मूलरोम) बनाती हैं, जो जल और खनिजों के अवशोषण हेतु सतह क्षेत्र बढ़ाते हैं।
More solved Science questions
- _______________ is a process in which persistent, non-degradable chemicals become progressively more concentrated at each higher trophic…
- Which of the following is the method used for refining metals such as copper, zinc and silver?
- What is formed when the male germ-cell from the pollen grain fuses with the female gamete in flowering plants?
- The IUPAC name for the first member of the alkyne series is:
- An element 'Cu' has two isotopes Cu-63 and Cu-65 with natural abundance 70% and 30% respectively. What is the average atomic mass of Cu?
- If the speed of light in vacuum and water are 3.00 x 10^8 m/s and 2.25 x 10^8 m/s respectively, then the refractive index of water with…