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.
In which type of reactions related to plant photosynthesis peroxisomes are involved?
Glycolate cycle
Calvin cycle
Bacterial photosynthesis
Glyoxylate cycle
The correct sequence of organelles in which glycolate and glyoxylate are produced sequentially in photorespiration is
chloroplast and mitochondria
chloroplast and peroxisome
peroxisome and mitochondria
peroxisome and chloroplast
C4 pathway is advantageous over C3 pathway in plants as it
occurs in relatively low CO2 concentration
uses more amount of water
occurs in relatively low O2 concentration
is less efficient in energy utilisation
Opening and closing of stomata is controlled by
abscisic acid
CO2 concentration
O2 concentration
light intensity
Chloroplast dimorphism is a characteristic feature of
plants with Calvin cycle
C4 -plants
all plants
only in algae
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
Chlorophyll molecules are located in the
thylakoid membrane
thylakoid lumen
stroma
inner chloroplast membrane
Identify the correct statements in relation to C4 photosynthesis.
Kranz anatomy is an essential feature for C4 plants
C4 plants have higher water use efficiency than C3 plants
Photorespiration can be minimised when C3 pathway is in operation
Conversion of oxaloacetate to malate occurs in the bundle sheath 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
