Ribulose biphosphate carboxylase, the main enzyme of Calvin cycle that fixes CO2, acts as ribulose biphosphate oxygenase under
A. High atmospheric concentration of CO2 and increased concentration of O2
B. Low atmospheric concentration of CO2 and increased concentration of O2
C. High atmospheric concentration of CO2 and decreased concentration of O2
D. Absence of CO2 and increased concentration of O2
Answer: Option B
This Question Belongs to Biology GK Chapter Wise >> Plant Anatomy And Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem
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