SPSC LECTURER ZOOLOGY PAST PAPERS 2000 TO TILL DATE
Zoology 5 years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
مایا کو عام طور پر ______ کہا جاتا ہے؟
- Hard shelled calm
- Devil calm
- Mud calm
- None of these
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Explanation
Mya is a genus of bivalve mollusks commonly known as mud clams because they are found burrowed in muddy or sandy marine habitats.They belong to the family Myidae.They are known for their soft shells.
کون سا جانور "مردہ آدمی کی انگلی" کے نام سے جانا جاتا ہے؟
- Obelia
- Pennatula
- Alcyonium
- None of these
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Explanation
Alcyonium is a genus of soft corals commonly called "Dead Man's Fingers" due to their fleshy, lobed appearance resembling swollen fingers.Found in marine environments, they belong to the phylum Cnidaria, class Anthozoa.
کفالت کے میسنکائم میں ، آثار قدیمہ _____ کا کام انجام دیتے ہیں؟
- Formation of spiracles
- Reproduction
- Excretion
- None of these
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Explanation
Archeocytes are totipotent amoeboid cells in the mesohyl that differentiate into various cell types, including gametes.They play a crucial role in reproduction (both sexual and asexual) and regeneration in sponges.
انوفیلس مچھر کا لاروا پانی میں تیرتا ہے؟
- Vertically with head upwards
- Vertically with head downward
- Horizontally with tail exposed in air
- None of these
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Explanation
The Anopheles mosquito larva floats horizontally in water, with its tail exposed to the air for breathing through spiracles.This is different from Culex mosquito larvae, which hang vertically in water.
میرین پروٹوزینز کو تازہ مرضی _____ میں منتقل کیا گیا؟
- Enlarge
- No change
- Shrink
- None of these
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Explanation
Marine protozoans are adapted to a high-salinity environment. When transferred to freshwater, osmosis causes water to enter their cells, leading to swelling.Without proper osmoregulation, excessive water intake may eventually cause the protozoan to burst.
اینٹاموبا ہسٹولیٹیکا کا انفیکٹو مرحلہ ______ ہے؟
- Sporozoite
- Trophozoite
- Merozoite
- None of these
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Explanation
The trophozoite stage of Entamoeba histolytica is the active, feeding, and disease-causing stage found in the host’s intestines.However, the infective stage is actually the mature cyst.It is ingested through contaminated food or water and then transforms into trophozoites in the intestine.
پلازموڈیم کا انفیکشن مرحلہ ______ ہے؟
- Sporozoite
- Trophozoite
- Merozoite
- None of these
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Explanation
The sporozoite stage is the infectious form of Plasmodium, transmitted to humans through a mosquito bite.Sporozoites travel to the liver, where they develop into merozoites.
ورٹیربیٹ گونڈس میں جراثیم کے خلیات ______ کے ذریعہ تیار کیے جاتے ہیں؟
- Only meiosis
- Only mitosis
- Mitosis and Meiosis
- None of these
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Explanation
Germ cells first multiply through mitosis to increase their number.They then undergo meiosis to produce haploid gametes (sperm or eggs).
سینٹومیر کا کام _____ ہے؟
- Formation of RNA
- Duplication of chromosomes
- Movement of chromosomes
- None of these
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Explanation
The centromere is the region of a chromosome where spindle fibers attach during cell division.It ensures the proper movement and segregation of chromosomes during mitosis and meiosis.
سیل میں مائٹوکونڈریا کے عمل کو پہلے _______ کے ذریعہ بیان کیا گیا تھا؟
- Leeuwenhoek
- Altmann
- De Duve
- None of these
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Explanation
Richard Altmann first described mitochondria as "bioblasts" in 1890.He proposed that they were independent living entities within cells.
