Practise Botany MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
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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مٹی کا کٹاؤ زیادہ ہوتا ہے جب ____؟
Answer: The rainfall is received in heavy downpours
Explanation Heavy downpours cause rapid surface runoff , leading to greater soil erosion. Raindrop impact loosens soil particles , making them more susceptible to being washed away.
سی فور سائیکل کی کاربوکسیلیشن مصنوعات ______ ہیں؟
Answer: Malate and aspartate
Explanation In the C4 cycle , CO₂ is initially fixed by PEP carboxylase into oxaloacetate, which is then converted into malate and aspartate. These compounds transport CO₂ to bundle sheath cells for the Calvin cycle . It enhancing efficiency in high-temperature environments.
Answer: Pteridophytes
Explanation Pteridophytes are the first terrestrial plants to possess vascular tissue. A pteridophyte is a vascular plant (with xylem and phloem) that reproduces by means of spores. Because pteridophytes produce neithe r flowers nor seeds, They are sometimes referred to as "cryptogams", meaning that their means of reproduction is hidden.
اعلی پودوں کے خلیوں میں غیر حاضر رہتے ہوئے صرف جانوروں کے خلیوں میں کون سا موجود ہے؟
Answer: Centriole
Explanation Centrioles are present only in animal cells . They are involved in cell division (spindle formation). Higher plant cells typically lack centrioles and instead organize their spindle fibers differently.
Answer: Takes place in Cytoplasm
Explanation Glycolysis, the metabolic pathway that conve rts glucose into pyruvate Takes place in the cytoplasm (s pecifically the cytosol) of both prokaryotic and eukaryotic cells . It acts as the initial stage of cellular respiration, occurring independently of oxygen t o produce a net gain of 2 ATP and 2 NADH molecules. Additional Products: Generates 2 NADH.
Answer: Crossing over
Explanation The exchange of parts of non-sister chromatids of homologous chromosomes during meiosis is called Crossing over. During meiosis, homologous chromosomes pair up and "cross over," exchanging genetic material between their non-sister chromatids, resulting in new combinations of alleles.
انتہائی ترمیم شدہ پودوں کی شوٹ جس میں ایک چھوٹا سا تنے گھنے موٹے مانسل پتے سے گھرا ہوا ہے؟
Answer: Bulb
Explanation Bulb is an underground modified stem with a short stem surrounded by fleshy leaves that store food (e.g., Onion, Garlic). It helps plants survive unfavorable conditions and regrow when conditions improve.
حیاتیاتی نائٹروجن طے کرنے کے لئے مندرجہ ذیل میں سے کون سا ضروری ہے؟
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
جڑوں سے جذب معدنیات _____ کے ذریعے پتے میں جاتے ہیں؟
Answer: Xylem
Explanation Xylem transports water and minerals absorbed by roots to the leaves. This movement occurs through transpiration pull and capillary action.
Answer: Collenchyma
Explanation The living simple tissue that provides support to the growing parts of a plant is collenchyma . Collenchyma is a simple permanent tissue . The cells are thickened at the corners due to the deposition of cellulose, hemicellulose, and pectin. It provides mechanical support to the young, growing parts of the plant.
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