Transition state structure of the substrate formed during an enzymatic reaction is
transient but stable
permanent but unstable
transient and unstable
transient and unstable
C.
transient and unstable
The substrate binds to the enzyme at its active site forming an enzyme-substrate complex. This complex formation is a transient and unstable phenomenon. very soon, the product is released from the active site. It is the fact that all other intermediate structural states are unstable. Stability is related to energy status of the molecule or the structure.
Interfascicular cambium develops from the cells of
medullary rays
xylem parenchyma
endodermis
endodermis
Select the wrong statement
Isogametes are similar in structure, function and behaviour
Anisogamets differ either in structure, function and behaviour
In oomycetes female gamete is smaller and motile, while male gamete is larger and non-motile
In oomycetes female gamete is smaller and motile, while male gamete is larger and non-motile
Which one of the following is not correct statement?
Herbarium houses dried, pressed and preserved plant specimens.
Botanical gardens have collection of living plants for reference
A museum has collection of photographs of plants and animals
A museum has collection of photographs of plants and animals
Besides paddy fields, cyanobacteria are also found inside vegetative part of
Pinus
Cycas
Equisetum
Equisetum
Among bitter gourd mustard, brinjal, pumpkin, China rose, lupin, cucumber, sunn hemp, gram, guava, bean, chilli, plum, Petunia, potato tomato, rose, With potato, onion, aloe and tulip, how many plants have hypogynous flower?
Six
Ten
Fifteen
Fifteen
In China rose the flowers are
actinomorphic, hypogynous with twisted aestivation
actinomorphic, epigynous with valvate aestivation
zygomorphic, hypogynous with imbricate aestivation
zygomorphic, hypogynous with imbricate aestivation
Isogamous condition with non-flagellated gametes is found in
Chlamydomonas
Spirogyra
Volvox
Volvox
