LECTURER ZOOLOGY PAST PAPERS AND SYLLABUS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
خون کے خلیات _____ میں اعلی کشیروں میں تشکیل پاتے ہیں؟
Spleen
Bone marrow
Liver
None of these
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Explanation
In higher vertebrates , bone marrow is the primary site for hematopoiesis (blood cell formation) . The liver and spleen play a role in blood cell production during fetal development . But in adults, bone marrow is the main site.
مندرجہ ذیل میں سے کون صرف جانوروں میں ہوتا ہے؟
Ethological isolation
Mechanical isolation
Sectional isolation
None of these
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Explanation
Ethological isolation (also called behavioral isolation ) occurs only in animals due to differences in mating behaviors , such as courtship rituals. Mechanical isolation can occur in both animals and plants due to structural differences preventing mating or pollination.
ایپیڈرمل گلیں _____ میں موجود ہیں؟
Tailed amphibians
Adult amphibians
Adult fishes
None of these
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Explanation
Epidermal gills are found in the larval stages of tailed amphibians (such as salamanders and newts). These gills help in respiration before the development of lungs.
سیسٹوڈس کو عام طور پر _____ کہا جاتا ہے؟
Roundworms
Tapeworms
Flatworms
None of these
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Explanation
Cestodes are a class of parasitic flatworms commonly known as tapeworms , which live in the intestines of vertebrates. They lack a digestive system and absorb nutrients directly through their body surface.
کربس سائیکل کو _____ بھی کہا جاتا ہے؟
Citric acid cycle
Urea cycle
Glycolysis
None of these
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Explanation
The Krebs cycle , also known as the citric acid cycle . It occurs in the mitochondria . It is a key part of aerobic respiration, producing ATP, NADH, and FADH₂ . It was discovered by Hans Krebs in 1937 .
مندرجہ ذیل میں سے کون سا فوڈ چین ہے؟
Energy cycle
Grazing food chain
Water cycle
None of these
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Explanation
A grazing food chain starts with producers (plants, algae) and moves through herbivores (primary consumers) to carnivores (secondary/tertiary consumers) . It is a major pathway for energy flow in ecosystems.
واٹر پھیپھڑوں _____ میں پائے جاتے ہیں؟
Most of mammals
Most of fishes
Most of invertebrates
None of these
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Explanation
Water lungs , also known as respiratory trees. They are found in some marine invertebrates , especially sea cucumbers (Holothuroidea) . These structures help in respiration by extracting oxygen from water.
پیشاب مثانے برانن _____ میں موجود ہے؟
Birds
Snakes
Both A & B
None of these
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Explanation
Birds develop a urinary bladder during embryonic stages, but it is usually absent in adults. Snakes lack a urinary bladder entirely, as they excrete nitrogenous waste mainly in solid or semi-solid form.
Head, Neck, Tail
Head and Tail
Head, Neck, Middle piece, Tail
None of these
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Explanation
Head – Contains the nucleus and acrosome for fertilization. Neck – Connects the head to the middle piece and contains centrioles. Middle piece – Packed with mitochondria to provide energy for movement. Tail – Propels the sperm forward for fertilization.
مندرجہ ذیل میں سے کون نیماتود پرجیوی نہیں ہے؟
Schistosoma
Trichinella
Ascaris
None of these
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Explanation
Schistosoma is a trematode (fluke), not a nematode . It causes schistosomiasis in humans. Trichinella, Ascaris, and Dracunculus are all nematode (roundworm) parasites .
