SPSC 25 YEARS PAST PAPERS 2001 TO 2026
SPSC 5 years Past Papers Click here
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
بیج ھیبٹ ______ میں شروع ہوئی؟
- Algae
- Pteridophytes
- Bryophytes
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Pteridophytes were the first plants to develop vascular tissues.This leading to the evolution of seed habit in higher plants.Algae, bryophytes, and fungi do not produce seeds; they reproduce through spores.
مندرجہ ذیل میں سے کون سا حیاتیات آٹوٹروف نہیں ہے؟
- Algae
- Mushroom
- Moss
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Mushrooms are fungi and do not perform photosynthesis.They obtain nutrients by decomposing organic matter (heterotrophic mode of nutrition).Algae, moss, and grass are autotrophs as they produce their own food through photosynthesis.
ڈی این اے بنیادی طور پر ______ میں پایا جاتا ہے؟
- Cytoplasm
- Chromatin
- Nucleus
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
DNA is primarily located in the nucleus of eukaryotic cells, where it stores genetic information.In prokaryotic cells, DNA is found in the cytoplasm (nucleoid region).
مندرجہ ذیل میں سے کون سا خشک پھل ایک جمناسپرم سے حاصل کیا جاتا ہے؟
- Chilgoza
- Walnut
- Pistachio
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Chilgoza (Pinus gerardiana) is a type of pine nut obtained from a gymnosperm (coniferous tree).Gymnosperms do not produce true fruits as they lack an ovary; their seeds develop in cones.
آسان ترین آکسیجن تیار کرنے والے حیاتیات _____ ہیں؟
- Viruses
- Bacteria
- Cyanobacteria
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Cyanobacteria (blue-green algae) are the simplest photosynthetic organisms that produce oxygen through photosynthesis.They played a crucial role in forming Earth’s oxygen-rich atmosphere.
سیلوٹم عام طور پر ______ کے نام سے جانا جاتا ہے؟
- Maidenhair fern
- Horsetail
- Wisk fern
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Psilotum is called a whisk fern.Because it lacks true leaves and roots, resembling early vascular plants.It belongs to the division Psilotophyta and reproduces through spores.
جزوی طور پر سڑنے والی نامیاتی مادے کو _____ کہا جاتا ہے؟
- Litter
- Peat
- Humus
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Peat is partially decomposed organic matter that accumulates in waterlogged conditions with low oxygen.It is an early stage of coal formation.It is rich in carbon.
کسی کائی کی جڑ کی طرح اور پتی کی طرح ڈھانچے اور عروقی پودے کی جڑوں اور پتے _______ ہیں؟
- Vestigial structures
- Analogous structures
- Homologous structures
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Analogous structures perform similar functions but have different evolutionary origins.Mosses have root-like rhizoids and leaf-like structures that resemble vascular plant roots and leaves but differ in origin and structure.
جلد کی سب سے بیرونی تہہ کو ______ کہا جاتا ہے؟
- Cartilage
- Ligament
- Epiglottis
- Epidermis
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The epidermis is the outermost layer of the skin.It providing a barrier against environmental damage.It consists of keratinized cells that help prevent water loss and protect against pathogens.
مندرجہ ذیل میں سے کون سا دوہری حیاتیات ہے؟
- Algae
- Fungi
- Lichen
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Dual Organism – Lichen is a symbiotic association between a fungus and an alga (or cyanobacterium), functioning as a single organism.Mutualism – The fungus provides structure and absorbs nutrients.While the alga performs photosynthesis, producing food.
