BIOLOGY
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
بڑی آنت میں ______ ہوتا ہے ، جو ترکیب وٹامن کے۔
- Bacteria
- Parasites
- Tape worms
- None of these
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Explanation
Beneficial bacteria in the large intestine, especially E. coli, help synthesize Vitamin K.
This vitamin is essential for blood clotting and maintaining bone health.
ویکسینیشن کے دوران مندرجہ ذیل میں سے کون سا جسم میں متعارف کرایا جاتا ہے؟
- Antiviral
- Pathogen
- Weak or dead pathogens
- None of these
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Explanation
Vaccination involves introducing weakened or dead forms of pathogens into the body.
This helps the immune system recognize and fight the real pathogen in the future.
- They are the enclosures for plant to grow in winter requiring higher temperature for growth
- They are the enclosures for plant to grow in summer requiring lower temperature for growth
- They are the enclosures requiring higher level of humidity for specific type of plants
- None of these
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Explanation
Greenhouses are structures designed to provide an optimal environment for plants, particularly during colder seasons.
They trap sunlight, creating a warmer, more stable temperature that promotes plant growth in winter or colder climates.
الٹرا وایلیٹ کرنوں سے زمین کے تحفظ کے لئے اوزون پرت _____ میں موجود ہے؟
- Mesosphere
- Troposphere
- Stratosphere
- None of these
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Explanation
The ozone layer is located in the stratosphere, about 10 to 30 miles above Earth's surface.
It protects the Earth by absorbing most of the Sun's harmful ultraviolet (UV) radiation.
ویکسینیشن ______ کی وجہ سے وائرل انفیکشن کے خلاف بیماریوں کو کنٹرول کرنے میں مدد کرتا ہے؟
- Developing resistance against pathogen attack
- It does not allow pathogen to multiply in host
- Method avoid sound echo
- None of these
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Explanation
Vaccination stimulates the immune system to produce antibodies, building resistance against specific viruses.
It prepares the body to fight off future infections by recognizing and attacking the pathogen.
- A group of different cells which is meant for a specific task is called tissue
- A group of cells forming an organ system
- A groups of cells which is meant for a specific task is called tissue
- None of these
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Explanation
A tissue is a group of similar cells working together to perform a specific function in an organism.
Examples include muscle tissue, nerve tissue, and plant vascular tissues like xylem and phloem.
پہلا زندہ سیل کس نے دریافت کیا؟
- Rudolf Virchow
- Robert Hooke
- Robert Boyl
- None of these
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Explanation
Robert Hooke, a 17th-century philosopher and scientist.
He was the first to use the word "cell" to describe a basic unit of life.
A cell is the smallest unit that can live on its own.
Cells make up all living organisms and the tissues of the body.
مندرجہ ذیل میں سے کون سا عمل کاربن سائیکل میں شامل نہیں ہے؟
- Transpiration
- Respiration
- Photosynthesis
- None of these
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Explanation
Transpiration is the process of water movement through plants and its evaporation—not related to carbon movement.
The carbon cycle involves processes like respiration, photosynthesis, and burning of fossil fuels.
ماحولیاتی نظام کے سبز پودوں کو _____ کہا جاتا ہے؟
- Consumer
- Producer
- Decomposers
- None of these
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Explanation
Green plants make their own food through photosynthesis, so they are called producers.
They form the base of the food chain in any ecosystem.
خلیے کی دیوار کا وہ اہم جز کیا ہے جو پودے کے خلیے کو سہارا دیتا ہے اور اسے باقاعدہ شکل دیتا ہے؟
- Protein
- Starch
- Lipid
- Cellulose
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Explanation
- Cellulose is the main component of the cell wall in plant cells, providing strength, rigidity, and shape to the cell.
- It is a complex carbohydrate made up of glucose molecules.
- It is responsible for maintaining the cell's structure and supporting its growth.
