The source of oxygen in photosynthesis is...?

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💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The source of oxygen in photosynthesis is...?

(A) water

(B) salts

(C) minerals

(D) glucose

✅ Correct Answer: water

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

During the daytime for the photosynthesis, plants require ______...?

(A) O2

(B) N2

(C) CO2

(D) H2

✅ Correct Answer: CO2

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Which of the following gases do plants and trees give out during photosynthesis...?

(A) Hydrogen

(B) Nitrogen

(C) Oxygen

(D) Carbon dioxide

✅ Correct Answer: Oxygen

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Fundamental molecule produced during photosynthesis is ______...?

(A) Glucose

(B) Amino acid

(C) Fatty acid

(D) Nucleotide

✅ Correct Answer: Glucose

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Recognize the factor which does not affect the process of photosynthesis...?

(A) O2

(B) CO2

(C) H20

(D) Light

✅ Correct Answer: O2

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

In night, when photosynthesis is stopped, plants__________...?

(A) take in Carbon Dioxide

(B) give off Oxygen

(C) give off Carbon Dioxide

(D) None of these

✅ Correct Answer: give off Carbon Dioxide

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Which one of the following wavelengths of light is most effective in photosynthesis...?

(A) Blue

(B) Green

(C) Orange

(D) Yellow

✅ Correct Answer: Blue

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

Which gas is used to extract energy from food in photosynthesis...?

(A) O2 (Oxygen)

(B) CO2 (Carbon Dioxide)

(C) H2O (Water)

(D) N2 (Nitrogen)

✅ Correct Answer: CO2 (Carbon Dioxide)

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

During a total solar eclipse the rate of Photosynthesis___________...?

(A) Increase

(B) Decrease

(C) Remain Constant

(D) None of them

✅ Correct Answer: Decrease

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

In which part of the Plant does photosynthesis take place...?

(A) Flowers

(B) Roots

(C) Stem

(D) Leaves

✅ Correct Answer: Leaves

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The process of photosynthesis produces glucose and ______...?

(A) Carbon dioxide

(B) Oxygen

(C) Water

(D) Carbo monoxide

✅ Correct Answer: Carbon dioxide

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Source: This question is taken from the Everyday Science

💡 English word par Double-Click karein: Urdu meaning + pronunciation 🔊

The materials required for photosynthesis are _______...?

(A) Water (H2O) and Oxygen (O2)

(B) Water (H2O) and Carbon Dioxide (CO2)

(C) Carbon Dioxide (CO2) and Light Energy

(D) Glucose (C6H12O6) and Oxygen (O2)

✅ Correct Answer: Carbon Dioxide (CO2) and Light Energy

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Source: This question is taken from the Everyday Science

The source of oxygen in photosynthesis is...? Mcqs

PPSC Past Papers