All MCQs - Agriculture Officer Past Papers and Syllabus Practice | PakExamPoint
Practise All MCQs in Agriculture Officer Past Papers and Syllabus. Attempt multiple-choice questions, check answers and revise related subtopics.
All MCQs and revision practice
Study All through multiple-choice questions in Agriculture Officer Past Papers and Syllabus. This subtopic contains 749 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these All MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
کسی جاندار کا جینیاتی مواد کس چیز کے ساتھ تبدیل ہوتا ہے؟
A. None of these
B. Age
C. Environmental change
D. Nutritional change
Check answer and explanation
Answer: Environmental change
Explanation The genetic material (DNA) of an organism can undergo changes called mutations due to environmental factors . Examples of environmental factors: radiation, chemicals, UV light . Such changes can lead to variation in traits and sometimes evolution . Last verified on 11-02-2026
Explanation Fermentation in dairy uses beneficial microorganisms to convert sugars into acids or alcohol . Examples of fermented dairy products include cheese and yoghurt. Fermentation improves taste, texture, shelf-life, and digestibility. Last verified on 01-02-2026
Explanation Insects are part of the class Insecta in the animal kingdom. They have 3 body parts : head, thorax, and abdomen. Most insects have 6 legs and 4 wings . They are the largest group of animals on Earth. Examples: Butterfly, Bee, Grasshopper, Dragonfly . Last verified on 12-02-2026
Explanation Anthracnose is a fungal disease of mango caused by Colletotrichum gloeosporioides . It causes black spots on leaves, flowers, and fruits , reducing yield and quality. Proper irrigation management and avoiding wetting foliage reduces disease spread. Last verified on 30-01-2026
باریک چاول (فائن رائس) کے لیے تجویز کردہ بیج کی مقدار کیا ہے؟
A. 15 kg/ha
B. 10 kg/ha
C. None of these
D. 25 kg/ha
Check answer and explanation
Answer: 15 kg/ha
Explanation Fine rice (Basmati) requires a low seed rate to ensure proper tillering. Recommended seed rate for fine rice is 15 kg per hectare . Lower seed rate improves plant spacing and grain quality . Used mainly for nursery raising before transplanting. Excess seed rate reduces yield and grain quality . Last verified on 22-01-2026
Explanation Denitrification is the process where nitrates in soil are converted to nitrogen gas by bacteria. It is more pronounced in waterlogged soils because low oxygen conditions favor denitrifying bacteria. Additional information : Sandy soil : Well-drained, less denitrification Loam soil : Moderate drainage, moderate denitrification Last verified on 27-01-2026
وہ علاقہ جہاں کل بارش بخارات اور پودوں کی پانی کی مقدار سے کم ہو، کیا کہلاتا ہے؟
A. Grassland
B. Rainforest
C. None of these
D. Desert
Check answer and explanation
Answer: Desert
Explanation A region where total rainfall is less than evapotranspiration is classified as a Desert . Additional information : Examples of desert regions: Sahara Desert – Africa Thar Desert – Pakistan/India Arabian Desert – Middle East Gobi Desert – China/Mongolia Kalahari Desert – Africa Last verified on 24-01-2026
سی فور پودوں میں سب سے پہلی کاربوکسیلیشن اینزائم کون سی ہے؟
A. None of these
B. Rubisco activase
C. Phosphenol pyruvate carboxylase
D. Carbon anhydrase
Check answer and explanation
Answer: Phosphenol pyruvate carboxylase
Explanation C4 plants (e.g., maize, sugarcane) perform C4 photosynthesis to minimize photorespiration . The first enzyme to fix CO₂ is PEP carboxylase , forming a 4-carbon compound. This is different from C3 plants , where Rubisco fixes CO₂ first. PEP carboxylase has high affinity for CO₂ and does not react with O₂. Important for efficient photosynthesis in hot and dry climates . Last verified on 12-02-2026
Explanation Royal jelly is a special secretion used to feed queen bees in a colony. It is produced by worker bees from glands in their heads. It is rich in proteins, vitamins, and minerals. It supporting the growth and reproduction of the queen. Last verified on 23-01-2026
Explanation Mustard seeds require light for germination to break dormancy and initiate growth . Seeds of wheat and pea can germinate in darkness . Light-sensitive germination is common in small-seeded plants. Last verified on 03-02-2026
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