Practise Biology Class 9th MCQs MCQs in General Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Study Biology Class 9th MCQs through multiple-choice questions in General Science. This subtopic contains 178 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Biology Class 9th MCQs 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.
Continue your revision with related topics: Biology Class 10th MCQs MCQs, Chemistry Class 10th MCQs MCQs, Chemistry Class 9th MCQs MCQs, General Science Class 10 MCQs MCQs, General Science Class 4 MCQs MCQs, General Science Class 5 MCQs MCQs, General Science Class 6 MCQs MCQs, General Science Class 7 MCQs MCQs.
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ایپیڈرمس اور اینڈوڈرمس کے درمیان جڑ کا حصہ کہا جاتا ہے؟
Answer: Cortex
Explanation The cortex is the layer of tissue between the epidermis (outermost layer) and endodermis (inner layer) in plant roots. It's a region of parenchymatous cells that stores food, water, and nutrients.
سوکروز کی فلوئم ٹرانسپورٹ کو "ذریعہ سے ڈوبنے" کے طور پر بیان کیا جا سکتا ہے مندرجہ ذیل میں سے کون سا عام طور پر سنک کے طور پر کام نہیں کرے گا؟
Answer: Mature leaf
Explanation In the context of phloem transport , "source" refers to the location where sucrose is produced (usually leaves). While "sink" refers to the location where sucrose is consumed or stored (e.g., roots, stems, fruits, and storage organs). A mature leaf is typically a source , not a sink, as it produces sucrose through photosynthesis.
زندگی کی بنیاد _____ پر ہے؟
Answer: Chemical foundation
Explanation The foundation of life is based on chemical processes and reactions that occur within living organisms. These chemical reactions involve the building blocks of life. Such as carbon, hydrogen, oxygen, nitrogen, and phosphorus. They are combined in various ways to form biomolecules like carbohydrates, proteins, and nucleic acids.
مندرجہ ذیل میں سے ایک مماثل کو منتخب کریں؟
Answer: Ribosomes → Synthesis of steroids
Explanation Ribosomes are responsible for protein synthesis , not steroid synthesis. Steroid synthesis occurs in the endoplasmic reticulum and other organelles , but not in ribosomes.
فوٹو سنتھیسس واحد عمل ہے جو _____ کو تقسیم کرکے مفت آکسیجن پیدا کرتا ہے؟
Answer: Water
Explanation Photosynthesis splits water molecules (H2O) into oxygen (O2) and hydrogen ions (H+), releasing oxygen as a byproduct. This process is essential for life on Earth , as it provides the oxygen that supports aerobic respiration in most living organisms.
جسمانی تبدیلیوں کا سلسلہ کس خلیے سے خودکشی کرتا ہے؟
Answer: Apoptosis
Explanation The sequence of physiological changes by which a cell commits suicide is called apoptosis. This is a controlled, programmed cell death process that is crucial for maintaining healthy tissue function and development.
کھاد ایسے مادے ہیں جن میں کیمیائی عناصر ہوتے ہیں جیسے کھاد یا ______ کا مرکب؟
Answer: Nitrates
Explanation Fertilizers are substances containing chemical elements that provide essential nutrients for plant growth, including: Nitrates (N) for leaf growth and development Phosphates (P) for root development, flower and fruit formation Potassium (K) for overall plant health and resistance to disease
جانوروں کے خلیے میں مائٹوسس کے پروفیز کے دوران کون سا عمل ہوتا ہے؟
Answer: Separation of centrioles
Explanation During prophase of mitosis in an animal cell , separation of centrioles occurs. The centrioles move to opposite poles of the cell to help organize the mitotic spindle.
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