Question:
Who demonstrated that green plants purify the foul air produced by breathing animals and burning candles?
Who demonstrated that green plants purify the foul air produced by breathing animals and burning candles?
Updated On: Jul 7, 2022
- Priestley
- Ingenhousz
- Sachs
- Engelmann
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Joseph Priestley $(1770)$ observed that a candle burning in a closed space - a bell jar, soon gets extinguished. Similarly, a mouse kept in a closed space would soon get suffocated and die. However, when he placed a mint plant in the same bell jar, he found that the mouse stayed alive and candle continued to burn. Priestley hypothesised that foul air or phlogiston produced during burning of candles or animal (mice) respiration could be converted into pure air or dephlogiston by plants (mint). In $1774$, Priestley discovered oxygen.
Was this answer helpful?
0
0
Top Questions on Photosynthesis in higher plants
- Choose the correct sequence of no. of molecules formed when 6 mol of CO\textsubscript{2 enters into calvin cycle pathway}
- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Choose the correct statements among the following
I. Proton gradient across the membrane decreases due to cyclic flow of electrons between PQ and cytochrome b.
II. NADP reductase enzyme is located on the stroma side of the membrane.
III. PQ removes electron from the stroma- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Number of ATP and NADPH required to make one triose through Calvin cycle.
- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Choose the correct statements among the following
I. Joseph Priestley (1770): Showed that plants have the ability to take CO2 from the atmosphere and release O2.
II. Jan Ingenhousz (1779): Release of CO2 by plants was possible only at night and only by the non-green parts of plants.
III. Julius Von Sachs (1884): Green parts in plants produce glucose which is stored as starch.
IV. C. Van Niel (1931): Photosynthesis is essentially a light dependent reaction in which hydrogen from an oxidizable compound reduces CO2 to form carbohydrates.
Correct statements: I, III, IV- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
- Choose the incorrect statement among the following
- AP EAPCET - 2025
- Botany
- Photosynthesis in higher plants
View More Questions
Notes on Photosynthesis in higher plants
- Difference between cyclic and non-cyclic photophosphorylation Biology
- Haplontic Life Cycle Biology
- NCERT Solutions For Class 11 Biology Chapter 13 Photosynthesis in Higher Plants
- Photosynthesis in Higher Plants Biology
- Photosynthesis MCQs Biology
- Photosynthesis in Higher Plants Important Questions Biology
Concepts Used:
Photosynthesis in Higher Plants
Processes Of Photosynthesis in Higher Plants:
Photosynthesis in higher plants involves the following processes:
- Light Reaction
- Dark Reaction
Light Reaction:
- This phenomenon occurs in the presence of light.
- The pigment absorbs light and produces energy in the form of ATP.
- The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.
Dark Reaction:
This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:
- Calvin Cycle (C3 Cycle)
- C4 Cycle (Hatch and Slack Pathway)