RRB Technician Grade III · 30 Dec 2024 · Shift 1 — General Science
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1 General Science questions from RRB Technician Grade III · 30 Dec 2024 · Shift 1, with answers and Hindi and English explanations.
1.
फ्लोएम (phloem) में, निम्नलिखित में से कौन-सी कोशिकाएं मृत कोशिकाएं होती हैं?
In phloem, which of the following cells are dead cells?
- (A)फ्लोएम रेशे (Phloem fibres)Phloem fibres
- (B)साथी कोशिकाएं (Companion cells)Companion cells
- (C)फ्लोएम पैरेन्काइमा (Phloem parenchyma)Phloem parenchyma
- (D)चालनी कोशिकाएं (Sieve cells)Sieve cells
Show answer and explanation
Answer: (A)
फ्लोएम रेशे (Phloem fibres)
Phloem fibres
फ्लोएम में केवल फ्लोएम तंतु (बास्ट रेशे) मृत कोशिकाएँ होते हैं। चालनी अवयव, सहचर कोशिकाएँ और फ्लोएम मृदूतक जीवित होते हैं।
Phloem fibres (bast fibres) are the only dead cells in phloem. Sieve elements, companion cells and phloem parenchyma are living.
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