Multiple Choice QuestionsPlants purify air by which process?
Photorespiration
Photosynthesis
Photophosphorylation
Transpiration
The first carbon dioxide fixation in C4 pathway occurs in chloroplasts of
guard cells
mesophyll cells
bundle sheath cells
epidermal cells
In a CAM plant, the concentration of organic acid
increases during the day
decreases or increases during the day
increases during night
decreases during any time
Chloroplast dimorphism is a characteristic feature of
plants with Calvin cycle
C4 -plants
all plants
only in algae
In which type of reactions related to plant photosynthesis peroxisomes are involved?
Glycolate cycle
Calvin cycle
Bacterial photosynthesis
Glyoxylate cycle
Example of water soluble plant pigment is
chlorophyll- a
chlorophyll- b
anthocyanin
xanthophyll
C.
anthocyanin
Anthocyanin is a water-soluble pigment. It constitute a class of natural phenolic product. These provide colour to petals and fruits.
Chlorophyll is a green pigment in all green plants and in cyanobacteria, which is responsible for the absorption of light to provide energy for photosynthesis.
Chlorophyll- a is the primary photosynthetic pigment and chlorophyll- b is the accessory pigment that collects energy and passes it on to chl- a.
Xanthophyll is a yellow or brown carotenoid plant pigment which causes the autumn colours of leaves.
Identify the membrane across which the proton (H+) gradient facilitates ATP synthesis in a typical eukaryotic cell
plasma membrane
mitochondrial inner membrane
mitochondrial outer membrane
nuclear membrane
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