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NEET Important Biology Diagrams 2025: Biology Diagrams Class 11th & 12th

Respiration In Plants MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

Quick Facts

  • 6 Questions around this concept.

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If RQ is less than 1.0 in respiratory metabolism, it would mean that

Concepts Covered - 1

Respiratory System in Plants
  • The plants require O2 for respiration to occur and they also give out CO2.
  • Hence, plants have systems in place that ensure the availability of O2
  • Plants, unlike animals, have no specialised organs for gaseous exchange but they have stomata and lenticels for this purpose.

Why Plants Can Get Along Without Respiratory Organs?

  • First, each plant part takes care of its own gas-exchange needs. There is very little transport of gases from one plant part to another.
  • Second, plants do not present great demands for gas exchange. Roots, stems and leaves respire at rates far lower than animals do.
  • Third, the distance that gases must diffuse even in large, bulky plants is not great. Each living cell in a plant is located quite close to the surface of the plant.
     

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Respiratory System in Plants

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