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.

131. During synthesis, the spectral properties of chlorophyll are attained with the insertion of ______?

ترکیب کے دوران ، کلوروفیل کی ورنکرم خصوصیات ______ کے اندراج کے ساتھ حاصل کی جاتی ہیں؟

Check answer and explanation

Answer: Mg in the tetrapyrrole ring

Explanation During synthesis , the spectral properties of chlorophyll are attained with the insertion of Mg in the tetrapyrrole ring. Magnesium (Mg) is essential for light absorption and energy transfer in photosynthesis.

132. The seed formation gymnosperms occur due to permanent retention of _____?

بیج کی تشکیل جمناسپرم _____ کی مستقل برقرار رکھنے کی وجہ سے ہوتی ہے؟

Check answer and explanation

Answer: Megaspore

Explanation Gymnosperms form seeds by permanently retaining the megaspore within the ovule, which develops into the female gametophyte. This retention provides a nutritive tissue that supports the developing embryo, leading to seed formation.

133. Name the test used to assess the genotype of F₁ individuals?

افراد کے جین ٹائپ کا اندازہ کرنے کے لئے استعمال ہونے والے ٹیسٹ کا نام دیں؟

Check answer and explanation

Answer: Test cross

Explanation A test cross is used to determine the genotype of an individual by crossing it with a homozygous recessive organism. This helps reveal whether the individual is homozygous or heterozygous for a dominant trait.

134. Which of the following is a dual organism?

مندرجہ ذیل میں سے کون سا دوہری حیاتیات ہے؟

Check answer and explanation

Answer: Lichen

Explanation Dual Organism – Lichen is a symbiotic association between a fungus and an alga (or cyanobacterium), functioning as a single organism. Mutualism – The fungus provides structure and absorbs nutrients. While the alga performs photosynthesis, producing food.

135. Where is sugar attached with CO₂ in the chloroplast?

کلوروپلاسٹ میں شکر کس جگہ سی او ٹو کے ساتھ جڑتی ہے؟

Check answer and explanation

Answer: Stroma

Explanation In chloroplasts, the Calvin cycle occurs i n the stroma. CO₂ is fixed and converted into sugars in this area. Thylakoids are the site of light-dependent reactions, not sugar formation. Stroma contains enzymes needed for carbon fixation.

136. Natural resistance of an organism refers to:

Check answer and explanation

Answer: Genetic immunity

Explanation Natural resistance refers to an organism's inherent ability to resist diseases or pests due to genetic factors.

137. A group of individuals having the same chromosome number is called _____?

ایک ہی کروموسوم نمبر رکھنے والے افراد کے ایک گروپ کو _____ کہا جاتا ہے؟

Check answer and explanation

Answer: Karyotype

Explanation Karyotype refers to the complete set of chromosomes in an individual or species. It showing their number, size, and shape. It is used in genetics to study chromosomal abnormalities and species classification.

138. What should be given to an athlete for instant energy?

فوری توانائی کے لیے کھلاڑی کو کیا دیا جانا چاہیے؟

Check answer and explanation

Answer: Carbohydrates

Explanation Carbohydrates provide the quickest source of energy for athletes. As they are rapidly broken down into glucose , which fuels muscles during physical activity. This makes them ideal for boosting performance and stamina.

139. Botanic Gardens have a collection of living plants for the purpose of ______?

بوٹینک گارڈن کے پاس ______ کے مقصد کے لئے زندہ پودوں کا ایک مجموعہ ہے؟

Check answer and explanation

Answer: Both A and B

Explanation Research & Conservation : Botanic gardens preserve plant species, conduct scientific research , and help in biodiversity conservation . Display & Education : They serve as educational centers for students and the public, showcasing plant diversity and promoting awareness.

140. In plants growth involve _____?

پودوں میں نمو میں _____ شامل ہے؟

Check answer and explanation

Answer: All of these

Explanation Plant growth requires cell division, elongation, and differentiation to form tissues and organs. These processes work together to ensure increase in size and functional specialization .

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