LECTURER BOTANY PAST PAPERS AND SYLLABUS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
مندرجہ ذیل میں سے کون سا جوڑا ہے ، صحیح طور پر مماثل نہیں ہے؟
Abscisic add-Stomatal closure
IAA-Cell wall elongation
Gibberellic acid-Leaf fall
None of these
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Explanation
Gibberellic acid promotes stem elongation, seed germination, and flowering rather than leaf fall. Leaf fall (abscission) is mainly regulated by abscisic acid (ABA) and ethylene.
پودوں کا استعمال سستے اوسموٹیکم کے طور پر کون سا مادہ ہے؟
Ascorbic acid
Minerals
Proline
None of these
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Explanation
Proline acts as a cheap osmoticum . It helping plants maintain water balance under drought, salinity, and other stress conditions. It stabilizes proteins, protects membranes, and scavenges reactive oxygen species (ROS).
The marble was rolled by Robin in a small plastic pipe.
The marble was rolled through a small plastic pipe by Robin.
A small plastic pipe was rolled through a marble by Robin.
None of these
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Explanation
The marble was rolled through a small plastic pipe by Robin .
This is the correct passive voice of the given sentence while maintaining proper word order. The subject " Robin " becomes the agent, and " the marble " becomes the object in passive form.
فوٹووراسپیریشن یہ ہے جو سائیکل میں ہوتا ہے؟
Glycolate
Kerbs
Pyruvate
None of these
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Explanation
Photorespiration occurs in the Glycolate pathway (C₂ cycle) , where glycolate is formed when RuBisCO fixes oxygen instead of carbon dioxide. This process takes place in the chloroplasts, peroxisomes, and mitochondria of plants.
Musician
Singer
Composer
None of these
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Explanation
A book is created by an author . Just as a symphony is created by a composer . The composer writes and arranges musical pieces , similar to how an author writes a book .
مندرجہ ذیل میں سے کون سا نائٹروجن فکسنگ انزائم ہے؟
Nitrate reductase
Urease
Arginase
None of these
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Explanation
Nitrate reductase is an enzyme involved in the nitrogen cycle that reduces nitrate (NO₃⁻) to nitrite (NO₂⁻) , a crucial step in nitrogen assimilation in plants. It plays a key role in converting inorganic nitrogen into forms usable by plants for amino acid and protein synthesis.
جب گلائکولیسس کے دوران ایک ہیکسوز شوگر انو انو کو پیروکی ایسڈ کے دو انووں میں تبدیل کیا جاتا ہے تو کتنے اے ٹی پی انو تیار ہوتے ہیں؟
8
10
12
None of these
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Explanation
Glycolysis Overview : One molecule of hexose sugar (e.g., glucose) undergoes glycolysis, producing two molecules of pyruvic acid . ATP Yield in Glycolysis : ATP Used : 2 ATP (investment phase) ATP Produced : 4 ATP (payoff phase) Net ATP Gain : 2 ATP NADH Production : 2 NADH (each NADH = 3 ATP in the electron transport chain, yielding 6 ATP) Total ATP = 2 + 6 = 8 ATP
مندرجہ ذیل میں سے کون ہموزائگس جین ٹائپ کی نمائندگی کرتا ہے؟
AB
Aa
AA
None of these
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Explanation
A genotype is homozygous if it has two identical alleles for a gene.
AA consists of two dominant alleles, making it homozygous.
دنیا کی کم سے کم قیمتی کرنسی کون سا ہے؟
IRR
PKR
AFN
None of these
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Explanation
Iranian Rial (IRR) is currently the world's least valuable currency.
In contrast, the Kuwaiti Dinar (KWD) holds the position of the world's most valuable currency.
پودوں کے تولیدی طرز عمل کو ان کے ماحول کے ساتھ ہم آہنگی _____ کے ذریعہ کی جاتی ہے؟
Respiration and Vernalization
Photoperiodism and Vernalization
Transpiration and Vernalization
None of these
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Explanation
Photoperiodism is the response of plants to the length of day and night , influencing flowering and reproduction. Vernalization is the requirement of a cold period to induce flowering in certain plants.
