The first carbon dioxide acceptor in C4 - plants is ____________.
phosphoenol - pyruvate
ribulose 1,5 - diphosphate
oxalo acetic acid
phosphoglyceric acid
The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is:
Cytochrome
Iron-sulphur protein
Ferredoxin
Quinone
Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starch make it useful as a storage material?
Easily translocated
Chemically non reactive
Easily digested by animals
Easily diffused
Cytochrome is:
Metallo flave protein
Iron - containing porphyrin pigment
Glycoprotein
Lipid
Disc-shaped chloroplast is seen in
Spirogyra
Zygnema
Caulerpa
Ulothrix
Oxygenic photosynthesis occurs in:
Chromatium
Oscillatoria
Rhodospirillum
Chlorobium
Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?
Violet and blue
Blue and green
Green and red
Red and violet
The first step of photosynthesis is ____________.
excitation of electron of chlorophyll by a photon of light
formation of ATP
attachment of CO2 to 5 carbon sugar
ionisation of water
Smallest units of pigment molecules capable of carrying out the light reaction capable of carrying out the light reaction is called.
Fretchannel
Thylakoids
Quantasomes
Granum
Cyclic photophosphorylation results in the formation of:
NADPH
ATP and NADPH
ATP, NADPH and O2
ATP