Chlorenchyma is known to develop in the
spore capsule of a moss
pollen tube of Pinus
cytoplasm of Chlorella
mycellium of a green mould such as Aspergillus
A.
spore capsule of a moss
The apophysis of moss capsule contains chloroplast bearing parenchymatous cells, called as chlorenchyma. Due to presence of chloroplast, chlorenchyma cells have the ability to prepare food by the process of photosynthesis.
Discontinuous variations are
essential features
acquired character
non-essential changes
heritable changes
Which one of the following is wrong in relation to photorespiration?
It is a characteristic of C4 -plants
It is a characteristic of C3 -plants
It occurs in chloroplasts
It occurs in daytime only
Stomata of CAM plants
open during the night and close during the day
never open
are always open
open during the day and close at night
In sugarcane plant, 14CO2 is fixed in a malic acid, in which the enzyme that fixes CO2 is
ribulose phosphate kinase
fructose phosphatase
ribulose biphosphate carboxylase
phosphoenol pyruvic acid carboxylase
Barr-body in mammals represents
one of the two X-chromosomes in the cells
all heterochromatin of male and female cells
Y-chromosome of male
all heterochromatin of female cells
Boron in green plants assists in
photosynthesis
sugar transport
activation of enzymes
acting as enzyme cofactor
