Photosynthesis first occurred in
cyanobacteria
green plants
mycoplasma
green algae
Related Questions
Beyond of saturation point, the photosynthesis begins to decline because of
I. Photo inbibition
II. Photo-oxidation
III. Photo-reduction
Select the/correct option which matches with statement
I and III
III and II
I, II, and III
I and II
In half leaf experiment, a part of a leaf is enclosed in a test tube containing KOH soaked cotton, while the other half is exposed to air and then setup is placed in light for sometime. It was latter found that part of leaf which was exposed to air tested positive for starch. This indicates that
Light is essential for photosynthesis
Oxygen is liberated in photosynthesis
Water is essential for photosynthesis because in KOH soaked leaf, starch synthesis do not occurs as water reacts with KOH and it become unavailable for photosynthesis
Carbon dioxide is essential for photosynthesis because in KOH soaked leaf, starch synthesis do not occurs as is absorbed by, so is not available for photosynthesis
During photorespiration, the oxygen consuming reaction(s) occur in
Stroma of chloroplasts and mitochondria
Stroma of chloroplasts and peroxisomes
Grana of chloroplasts and peroxisomes
Stroma of chloroplasts
Maximum fixation is done by
Green plants
Phytoplanktons
Zooplanktons
Bacteria
Phenomenon which converts light energy into chemical energy is
Respiration
Photosynthesis
Transpiration
None of these
Who proved that oxygen evolved in photosynthesis comes from water?
Calvin
Mayer
Blackman
Ruben, Hassid and Kamen
What is the name given to the flattened membranous sacs which are embedded in the matrix of the chloroplast?
Thylakoids
Granum
Stroma
Mesophyll cells
Photosynthesis is
I. Endergonic process
II. Exergonic process
III. Chemical process
IV. Physical process
Select the correct option
I and II
II and IV
I and III
III and IV
Who proved that oxygen evolved in photosynthesis comes from water?
Calvin
Mayer
Blackman
Ruben, Hassid and Kamen
Photosynthesis is a
Catabolic process
Anabolic process
Amphibolic process
Catalytic process