KMU CAT PAST PAPER 16-11-2023
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
Remains constant
Increases
Decreases
Zero
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Explanation
In a reversible process, the entropy of the system remains constant.
A key characteristic of a reversible process is that it can be reversed without leaving any net change in the system or its surroundings, including the entropy.
درج ذیل میں سے کون سا تپ دق اور جذام کا سبب بنتا ہے؟
Streptomyces
Actinomycetes
Mycoplasma
None of these
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Explanation
The bacteria that cause tuberculosis and leprosy are Mycobacterium tuberculosis and Mycobacterium leprae.
So the correct answer is d) None of these
مندرجہ ذیل میں سے کون سا ہیپاٹائٹس آنتوں کے راستے سے پھیلتا ہے؟
Hepatitis A
Hepatitis B
Hepatitis C
Hepatitis D
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Explanation
Hepatitis A is primarily spread through contaminated food or wate r that has been in contact with infected feces, meaning it's transmitted through the fecal-oral route.
تمباکو موزیک وائرس کی شکل _____ ہے؟
Spiral
Rod shaped
Spherical
None of these
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Explanation
Tobacco mosaic virus (TMV) has a rod-like or cylindrical shape.
It's essentially a rigid, helical structure with a protein shell (capsid) surrounding a single-stranded RNA molecule
The capsid is composed of protein subunits arranged in a helical structure.
تاریک رد عمل کی پہلی مستحکم مصنوعات ______ کاربن انو ہے؟
6
4
3
5
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Explanation
The first stable product of the dark reaction (Calvin cycle) is 3-phosphoglycerate (3-PGA), a 3-carbon compound. This occurs after CO₂ fixation by RuBisCO.
شریک انزائمز _____ سے اخذ کیے گئے ہیں؟
Vitamins
Minerals
Hormones
Both A and B
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Explanation
Most coenzymes are actually vitamins or derived from vitamins, meaning they are essential organic compounds needed in small amounts for normal metabolism
اس کے کوفیکٹر کے بغیر ایک انزائم کو _____ کہا جاتا ہے؟
Active site
Co-enzyme
Prosthetic group
Apoenzyme
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Explanation
An enzyme without its cofactor is called an apoenzyme .
Apoenzymes are the inactive protein component of an enzyme, requiring a cofactor to become catalytically active and form a holoenzyme.
گلوکوز اور فرکٹوز کے مابین ہم آہنگی بانڈ کو ____ کہا جاتا ہے؟
Glycosidic bond
Peptide bond
Ester bond
Hydrogen bond
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Explanation
The covalent bond between glucose and fructose, forming sucrose, is called a glycosidic bond, specifically a 1-2 glycosidic linkage.
This bond is formed through a dehydration reaction where a water molecule is removed when the two monosaccharides join.
یہ سب ڈسکارائڈس ہیں سوائے اس کے کہ؟
Maltose
Lactose
Sucrose
Fructose
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Explanation
A disaccharide is a sugar molecule composed of two monosaccharides joined together.
Fructose is a monosaccharide (a single sugar unit), not a disaccharide.
Therefore, it is the exception among the given options.
گلائکوجن کی ترکیب _____ کے نام سے جانا جاتا ہے؟
Gluconeogenesis
Glycogenolysis
Glycolysis
Glycogenesis
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Explanation
The synthesis of glycogen is known as glycogenesis .
This process involves the conversion of glucose into glycogen, primarily in the liver and muscle tissues, for storage and later use as an energy source.