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Cells, Tissues & Biomolecules Part 19

Online bilingual mock test designed according to latest Assam government exam pattern. Practice high-yield MCQs with timer, negative marking simulation, and instant answer explanations.

📋 100 Total Questions
⏱️ 30 Mins Test Duration
🎯 +1 / -0.25 Marking Scheme
🌐 Bilingual Eng & Assamese

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📖 Sample Questions from this Mock Test

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Q1. Which small GTPase acts as a molecular switch to direct nuclear export and import of macromolecules through the nuclear pore complex?
অসমীয়া: নিউক্লিঅ' ছিদ্ৰৰ মাজেৰে ডাঙৰ অণুসমূহ নিউক্লিয়াছৰ ভিতৰলৈ আৰু বাহিৰলৈ অনা-নিয়া কৰাত নিয়ন্ত্ৰক হিচাপে কাম কৰা GTPase প্ৰ'টিনবিধ কি?
A) Ras
B) Ran
C) Rho
D) Rab
Q2. In plant stems, what are the balloon-like parenchymatous outgrowths that block the lumens of non-functional xylem vessels in heartwood?
অসমীয়া: উদ্ভিদৰ পুৰণি কাঠত (heartwood) কাষৰ পেৰেনকাইমা কোষ ওফন্দি জাইলিম নলীকাবোৰ বন্ধ কৰি দিয়া বেলুন সদৃশ গঠনবোৰক কি বোলে?
A) Hydathodes
B) Lenticels
C) Tyloses
D) Resin ducts
Q3. Which chemical reagent specifically reacts with the free alpha-amino groups of amino acids to produce a characteristic deep purple-blue color known as Ruhemann's purple?
অসমীয়া: এমিনো এচিডৰ মুক্ত এমিনো মূলকৰ লগত বিক্ৰিয়া কৰি ৰুহমেনৰ বেঙুনীয়া (Ruhemann's purple) ৰং সৃষ্টি কৰা ৰাসায়নিক বিকাৰকবিধ কি?
A) Biuret reagent
B) Ninhydrin reagent
C) Benedict's reagent
D) Barfoed's reagent