Botany MCQs - Everyday Science Practice | PakExamPoint

Practise Botany MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.

Botany MCQs and revision practice

Study Botany through multiple-choice questions in Everyday Science. This subtopic contains 333 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

Use these Botany 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.

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Botany: questions and answer review

Try each question before opening its answer. Record the concept behind each mistake and revisit it during your next practice session.

291. 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

292. Which is a pigment that is part of biological clock system that helps control of flowering?

کون سا روغن ہے جو حیاتیاتی گھڑی کے نظام کا حصہ ہے جو پھولوں پر قابو پانے میں مدد کرتا ہے؟

Check answer and explanation

Answer: Phytochromes

Explanation Phytochromes are light-sensitive pigments that regulate plant responses like flowering, seed germination, and photoperiodism . They help plants detect day length and adjust their growth cycles accordingly.

293. The dark-colored organic matter formed in the soil by the decomposition of animals and plants is referred to as ______?

جانوروں اور پودوں کے گلنے کے ذریعہ مٹی میں سیاہ رنگ کا نامیاتی معاملہ تشکیل دیا جاتا ہے جسے ______ کہا جاتا ہے؟

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Answer: Humus

Explanation Humus is the dark organic material in soil formed by the decomposition of plant and animal matter. It improves soil fertility by retaining moisture and nutrients essential for plant growth.

294. Plants require a number of soil nutrients like nitrogen, Phosphorus, and ______?

پودوں کو مٹی کے متعدد غذائی اجزاء جیسے نائٹروجن ، فاسفورس ، اور ______ کی ضرورت ہوتی ہے؟

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Answer: Potassium

Explanation Potassium is an essential nutrient for plants, helping with growth, disease resistance, and water regulation. Along with nitrogen and phosphorus , it is one of the primary macronutrients needed for healthy plant development.

295. Cell elongation in internodal regions is due to:

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Answer: Gibberellin

Explanation Gibberellins are plant hormones that promote cell elongation, especially in internodal regions.

296. Spirogyra differs from moss-protonema in having _____?

اسپیروجیرا _____ رکھنے میں ماس-پروٹونیما سے مختلف ہے؟

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Answer: Pyrenoids

Explanation Spirogyra has pyrenoids , which are structures in its chloroplasts that store starch and aid in photosynthesis. Moss protonema lacks pyrenoids ; instead, it has a filamentous structure that helps in the early growth stage of moss.

297. Algae are placed in a group of plant-like Protists because?

الجی کو پودوں جیسے پروٹسٹس کے گروپ میں کیوں شامل کیا جاتا ہے؟

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Answer: They can perform photosynthesis

Explanation Protists are simple, mostly unicellular organisms. Algae show plant-like characteristics among protists. They contain chlorophyll for making food. They produce their own food through photosynthesis . That is why they are called plant-like protists . Last verified on 10-04-2026

298. Which of the following is a technique used for cloning plants?

کلوننگ پودوں کے لئے استعمال ہونے والی تکنیک مندرجہ ذیل میں سے کون سا ہے؟

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Answer: Tissue culture

Explanation Tissue culture is a cloning technique where plant cells or tissues grow in a nutrient medium under sterile conditions. It allows rapid multiplication of genetically identical plants.

299. The compound acting as chromophore in the phytochrome is ______?

کمپاؤنڈ فیٹوکوم میں کروموفور کی حیثیت سے کام کرنے والا کمپاؤنڈ ______ ہے؟

Check answer and explanation

Answer: Phytochromobilin

Explanation The compound acting as a chromophore in phytochrome is phytochromobilin . It helps in light absorption , enabling phytochrome to regulate plant responses like germination and flowering .

300. Which of the following is an example of runners?

مندرجہ ذیل میں سے کون رنرز کی مثال ہے؟

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Answer: Strawberries

Explanation A runner is a specialized stem that grows horizontally along the ground a nd produces new plants at its nodes Strawberries are known to reproduce through these runners. 2. Mint plant: While mint can spread quickly, it does so through suckers, not runners. S suckers grow verticall y from the root system, whereas runners grow horizontally aboveground. 3. Lachi: There's no widely recognized plant called "lachi". This may be a typo or a less common term.

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