Photorespiration shows formation of
sugar but not ATP
ATP but not sugar
both ATP and sugar
neither ATP nor sugar
D.
neither ATP nor sugar
Photorespiration is the light dependent process of oxygenation of ribulose biphosphate (RuBP) and release of carbon dioxide by the photosynthetic organs of a plant. Normally photosynthetic organs do the reverse in the light, i.e., uptake of CO2 and release of O2 At high temperature, RuBP carboxylase functions as oxygenase and instead of fixing carbon dioxide (C4 cycle), oxidises ribulose 1, 5-biphosphate to produce a 3-carbon phosphoglyceric acid and a 2-carbon phosphoglycolate. Photorespiration does not produce energy or reducing power. Rather, it consumes energy. Further, it undoes the work of photosynthesis. There is 25% loss of fixed CO2. Therefore, photorespiration is a highly wasteful process. This happens only in case of C4 plants. C4 plants have overcome the problem of photorespiration.
Which of the following is correct regarding respiration in adult frog
In water- Skin, gills
On land - Skin, buccal cavity
In water- Skin, buccal cavity
On land- Skin, lungs, gills
Which of the following is correctly matched
Monstera- Fibrous root
Dahlin- Fasciculated root
Azadirachta- Adventitious root
Basil- Prop roots
One of the world's most poisonous fish toxins is released by
clown fish
eel fish
sword fish
puffer fish
Which of the following is correctly labelled
A: Reissner's membrane
B: Scala vestibuli
C : Basilar membrane
D: Tectorial membrane
The microscope usually used for seeing living cells or tissues is
compound microscope
electron micrscope
phase contrast microscope
light microscope.
Deuteromycetes are known as fungi imperfecti because
their zygote undergoes meroblastic and holoblastic cleavage
only asexual stages are known
they have aseptate myceliun
they are autotrophic
Abscisic acid is known as the stress hormone because it
breaks seed dormancy
induces flowering
promotes leaf fall
promotes closure of stomata
