BIOLOGY
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
آٹے میں خمیر ڈالیں تو کیا نتیجہ نکلے گا؟
- The dough will become sour
- The dough will become harder
- The dough will become smaller
- The carbon dioxide will be released
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Explanation
- When yeast is added to dough, it ferments the sugars, producing carbon dioxide gas as a byproduct.
- This causes the dough to rise, making it lighter and airier.
خمیر آٹے میں چینی کھاتا ہے اور ______ گیس پیدا کرتا ہے۔
- Oxygen
- Hydrogen
- Carbon dioxide
- Nitrogen
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Explanation
- Yeast fermentation converts sugars into carbon dioxide gas and ethanol.
- It causing the dough to rise.
دہی میں کون سا موجود ہے جو دودھ کو دہی میں بدلنے لگتا ہے؟
- Bacteria
- Fungi
- Algae
- None
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Explanation
- Yogurt is made by adding a bacterial culture, typically Lactobacillus bulgaricus and Streptococcus thermophilus, to milk.
- These bacteria ferment the lactose (milk sugar) in the milk.
- It producing lactic acid and causing the milk to curdle and thicken, resulting in yogurt.
خمیر ایک _______ مثال ہے؟
- Bacteria
- Fungi
- Algae
- Virus
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Explanation
- Yeast is a type of fungus, specifically a single-celled fungus that belongs to the kingdom Fungi.
- It is a eukaryotic microorganism that is capable of fermenting sugars.
- It is commonly used in baking and brewing.
انسانوں اور جانوروں کی آنتوں میں رہنے والے بیکٹیریا کو ______ کہتے ہیں؟
- Lactobacillus acidophilus
- Escherichia coli
- Staphylococcus aureus
- Bacillus subtilis
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Explanation
- Escherichia coli (E. coli) is a type of bacterium.
- It is commonly found in the gut of humans and animals.
- It plays a important role in the digestive process.
- Algae
- Fungi
- Bacteria
- Virus
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Explanation
- E. coli (Escherichia coli) is a type of bacterium.
- Specifically a gram-negative, rod-shaped bacterium that is commonly found in the gut of humans and other animals.
مائکرواورگینیزمس کو کتنے اہم گروہوں میں درجہ بندی کیا گیا ہے؟
- 2
- 3
- 4
- 5
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Explanation
Microorganisms are typically classified into three main groups:
- Bacteria (single-celled prokaryotes)
- Viruses (tiny infectious agents that replicate inside the cells of an organism)
- Fungi (organisms that obtain their nutrients by decomposing organic matter or by forming symbiotic relationships with other organisms)
مندرجہ ذیل میں سے کون سی اپنی مثالوں کے ذریعے فقاری جانوروں کی اقسام کو غلط طور پر ظاہر کرتا ہے؟
- Reptile → Snake
- Bird → Ostrich
- Amphibian → Toad
- Mammal → Shark
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Explanation
- The correct answer is: Mammal → Shark
- Sharks are actually fish, not mammals.
- The correct example for mammals would be: Mammal → Human, Lion, Elephant, etc.
مندرجہ ذیل میں سے کون سی ڈیکوٹ پلانٹس کی خصوصیت نہیں ہے؟
- Its leaves have parallel venation
- Its leaves have netted venation
- Its seed consist of two cotyledon
- Its flowers have four or multiple of four floral leaves
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Explanation
Dicot plants are characterized by:
- Leaves with netted venation
- Seeds with two cotyledons
- Flowers with four or a multiple of four floral leaves
Having leaves with parallel venation is actually a characteristic of monocot plants, not dicots.
مندرجہ ذیل میں سے کون سا مونوکوٹ پلانٹس کی خصوصیت نہیں ہے؟
- Its leaves have parallel venation
- Its seed consist of one cotyledon
- Its flowers have three or multiple of three floral leaves
- Its flowers have four or multiple of four floral leaves
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Explanation
Monocot plants are characterized by:
- Leaves with parallel venation
- Seeds with one cotyledon
- Flowers with three or a multiple of three floral leaves
Having flowers with four or a multiple of four floral leaves is actually a characteristic of dicot plants, not monocots.