Question
GeneralGeneralGeneral

A plant is placed in carbon dioxide-free air. What happens to photosynthesis?

Verified Answer

If a plant is kept in carbon dioxide free air, photosynthesis will stop because CO2 is a raw material required for making food.

Key Factors

Factor Impact Explanation
Absence of CO2 Stops food formation CO2 is needed to form glucose
Light Availability No use without CO2 Even with light, process cannot continue
Chlorophyll Remains unused It cannot function fully without CO2 input
Glucose Production Stops No carbohydrate synthesis happens

Stepwise Understanding

  1. Plant is placed in air without carbon dioxide

  2. Photosynthesis process cannot proceed

  3. No glucose is produced

  4. Plant starts using stored food

  5. Over time, growth slows down and plant weakens

Important Concept

Photosynthesis requires three main things: light, water, and carbon dioxide. Missing any one stops the process.

Real Insight

In lab experiments, when CO2 is removed using chemicals like KOH, leaves do not produce starch, proving that CO2 is essential.

So basically, without carbon dioxide, the plant cannot prepare its food even if all other conditions are fine.