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TS Polycet (Polytechnic) 2022 Previous Question Paper with Answers And Model Papers With Complete Analysis

121) Total amount of urine excreted per day by humans is about ____ litres

A) 1.0-1.2

B) 1.2-1.4

C) 1.4-1.6

D) 1.6-1.8

View Answer

B) 1.2-1.4
Explanation:Average urine output in a healthy adult per day ≈ 1.2 to 1.4 litres
1.2–1.4

122) Assimilatory powers formed in the photochemical phase of photosynthesis are ____

A) ADP and ATP

B) ADP and NADP

C) ATP and NADPH

D) NADP and NADPH

View Answer

C) ATP and NADPH
Explanation:Photochemical phase of photosynthesis forms ATP and NADPH (assimilatory powers)
ATP and NADPH

123) The secondary function of lungs to carry out excretion is____

A) Removal of CO, and water

B) Elimination of Sebum

C) Urea formation

D) Excertion of excess salts

View Answer

A) Removal of CO, and water
Explanation:Lungs excrete CO₂ and water vapour as a secondary excretory function
Removal of CO₂ and water

124) Identify the correct photosynthetic equation

A) 6CO₂+H₂O $\xrightarrow[{light}]{chlorophyll}$ CH₂O+H₂O+6O₂

B) CO₂+2H₂O $\xrightarrow[{light}]{chlorophyll}$ CH₂O+2H₂O+O₂

C) 6CO₂+6H₂O $\xrightarrow[{light}]{chlorophyll}$ C₆H₁₂O₆+6H₂O+6O₂

D) 6CO₂+12H₂O $\xrightarrow[{light}]{chlorophyll}$ C₆H₁₂O₆+6H₂O+6O₂

View Answer

C) 6CO₂+6H₂O $\xrightarrow[{light}]{chlorophyll}$ C₆H₁₂O₆+6H₂O+6O₂
Explanation:Correct balanced photosynthesis equation:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
(Cshows the correct balanced form; though extra H₂O in product also appears in D, C is the standard)

125) _____ functions as filtration unit.

A) Bowman’s capsule

B) Glomerulus

C) Loop of Ilenle

D) Renal tubule

View Answer

B) Glomerulus
Explanation:Glomerulus acts as the filtration unit in nephron
Glomerulus

126) The latex of _____ plant is the source of biodiesel.

A) Sapota

B) Chicle

C) Hevea

D) Jatropa

View Answer

D) Jatropa
Explanation:Jatropha plant’s latex is used to produce biodiesel
Jatropa

127) Each human body cell contains _____ of Autosomes

A) 20 pairs

B) 23 pairs

C) 22 pairs

D) 24 pairs

View Answer

C) 22 pairs
Explanation:Humans have 22 pairs of autosomes + 1 pair sex chromosomes
22 pairs

128) The organs which have different structure but perform similar functions are called

A) Homologous organs

B) Analogous organs

C) Vestigial organs

D) None of the above

View Answer

B) Analogous organs
Explanation:Same function, different origin = Analogous organs

129) Differences in character within closely related groups of organisms is referred to as

A) genes

B) variations

C) genes and variations

D) None of the above

View Answer

B) variations
Explanation:Intra-species differences are called variations

130) A cross between a round, green seeded pea-plant (RRyy) and a wrinkled yellow seeded pea-plant (rrYY), the seeds produced in F₁ generation are

A) wrinkled and Yellow

B) Wrinkled and Green

C) Round and Yellow

D) Round and Green

View Answer

C) Round and Yellow
Explanation:RRyy × rrYY → RrYy (F₁: Round and Yellow)

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