All MCQs - Agriculture Officer Past Papers and Syllabus Practice | PakExamPoint

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311. Plants take nitrogen from the soil in the form of _______?

پودے مٹی سے نائٹروجن کس شکل میں لیتے ہیں؟

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Answer: Both A and B

Explanation Plants need nitrogen for protein and chlorophyll synthesis. Nitrogen in soil is absorbed mainly as nitrate (NO₃⁻) and ammonium (NH₄⁺) ions. Soil bacteria help convert organic nitrogen into these forms. Essential for healthy plant growth and higher crop yield. Nitrogen deficiency causes yellowing of leaves. Last verified on 12-02-2026

312. The phase of the cell cycle in which DNA synthesis occurs is _____?

سیل سائیکل کے کس مرحلے میں ڈی این اے کی ترکیب ہوتی ہے؟

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Answer: S Phase

Explanation The cell cycle is the sequence of stages a cell goes through to grow and divide. DNA synthesis (replication) occurs during the S Phase (Synthesis Phase). Additional information : G₁ Phase – cell growth before DNA replication G₂ Phase – preparation for cell division after DNA replication M Phase – actual mitosis/cell division Last verified on 22-01-2026

313. Which of the following is necessary for biological nitrogen fixation?

حیاتیاتی نائٹروجن طے کرنے کے لئے مندرجہ ذیل میں سے کون سا ضروری ہے؟

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Answer: Molybdenum

Explanation Nitrogenase enzyme requires molybdenum. It helps convert atmospheric N₂ into ammonia. Leguminous plants rely on this process. Deficiency reduces nitrogen fixation. I t is essential for symbiotic bacteria in root nodules. Last updated question 17-02-2026

314. Disastrous migrant pest of crops is ____?

فصلوں کا خطرناک ہجرت کرنے والا کیڑا کون سا ہے؟

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Answer: Locust

Explanation Locusts are migratory pests that can destroy vast areas of crops in a short time. They travel in swarms , feeding on almost all green vegetation. Considered one of the most disastrous agricultural pests worldwide. Last verified on 03-02-2026

315. Meristem has _____ form of carbohydrates in plant cells.

مرسٹم میں پودوں کے خلیات میں کاربوہائیڈریٹس کس شکل میں پائے جاتے ہیں؟

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Answer: Starch

Explanation In plants, carbohydrates are stored mainly in the form of starch . Starch serves as an energy reserve used during growth and development . Additional information : Storage forms in plants : Starch – main carbohydrate reserve Sucrose – transport form of carbohydrate Cellulose – structural carbohydrate Glycogen – storage carbohydrate in animals Glucose – immediate energy source Last verified on 19-01-2026

316. Eight (8) Bits make up a _____?

آٹھ بٹس ایک _____ بناتے ہیں؟

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Answer: Byte

Explanation 1 byte equals 8 bits . Additional Information 1024 Bytes = 1 Kilobyte (KB) 1024 Kilobytes = 1 Megabyte (MB) 1024 Megabytes = 1 Gigabyte (GB) 1024 Gigabytes = 1 Terabyte (TB) Last verified on 04-02-2026

317. Null hypothesis is the statement that there is no effect or difference. Its opposite is called _____?

صفر مفروضہ وہ بیان ہے جس میں کہا جاتا ہے کہ کوئی اثر یا فرق موجود نہیں ہے۔ اس کے برعکس کو کیا کہا جاتا ہے؟

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Answer: Alternate hypothesis

Explanation In statistics and research , hypotheses are used to test ideas. The null hypothesis (H₀) states that there is no effect or difference. The hypothesis that states there is an effect or difference is called the alternate hypothesis (H₁). Last verified on 23-01-2026

318. Participatory approach is when communication is ______?

شرکت پر مبنی طریقۂ کار میں ابلاغ کیسا ہوتا ہے؟

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Answer: Two way

Explanation A Participatory approach involves active participation of all stakeholders. In this approach, farmers and extension workers share ideas and feedback. Communication flows both from sender to receiver and receiver to sender. Therefore, communication in a participatory approach is two-way . Last verified on 24-01-2026

319. Carrot, Radish, Cabbage and Beet are _______?

گاجر، مولی، بند گوبھی اور چقندر کس قسم کی فصلیں ہیں؟

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Answer: Biennial

Explanation These vegetables are biennial plants , completing their life cycle in two years. First year — vegetative growth (leaves and roots). Second year — flowering and seed production. Commonly grown for edible roots and leaves . Examples: Carrot, Radish, Cabbage, Beet . Last verified on 12-02-2026

320. An interest-bearing deposit which normally can be withdrawn by a depositor at any time is called _____?

وہ سود دینے والا جمع جسے جمع کرنے والا عام طور پر کسی بھی وقت نکال سکتا ہے، کیا کہلاتا ہے؟

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Answer: Saving deposit

Explanation A saving deposit is a bank account that earns interest and allows the depositor to withdraw money anytime. It is designed for safekeeping of money with easy access. Interest rates are usually lower than fixed deposits but provide high liquidity. Last verified on 01-02-2026

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