List of practice Questions

I. $\quad$Pulvinus leaf base is present in some leguminous plants. II.$\quad$ Whorled phyllotaxy is seen in Calotropis. III. $\quad$In Australian acacia, the petioles expand, become green and$\quad$$\quad$ $\quad$$\quad$synthesise food. IV.$\quad$ A bud is present in the axil of leaflets of the compound leaf. Of the above statements
When one is a fodder plant, the other is a medicinal plant. They are
Chamber A and B are separated by a semi-permeable membrane. Study the given figure and choose the right option.
I.$\quad$ In Rhodophyceae, food is stored in the form of mannitol and$\quad$$\quad$ $\quad$$\quad$laminarin. II. $\quad$The ovules of Gymnosperms are not enclosed by ovary wall. III. $\quad$Salvinia is heterosporous. IV.$\quad$In the diplontic life-cycle, the free living gametophyte represents $\quad$$\quad$the dominant phase. Of the above statements
Which of the following taxonomic category of housefly is wrongly matched?
Cerebrospinal fluid is present
Blue-baby syndrome is caused by
Cri-du-Chat (cry of the cat) syndrome occurs in human babies due to
Bioreactors are useful in
The vant Hoff factor of $ BaC{{l}_{2}} $ at $ 0.01 \,M $ concentration is $ 1.98 $ . The percentage of dissociation of $ BaC{{l}_{2}} $ at this concentration is:
Two moles of $ PC{{l}_{5}} $ is heated in a closed vessel of $ 2L $ capacity. When the equilibrium is attained 40% of it has been found to be dissociated. What is the $ {{K}_{c}} $ in $ mol/d{{m}^{3}} $ ?
Audio signal cannot be transmitted because
Barnacles growing on the back of whale is an example for
In which of the following molecules the central atom does not follow the octet rule ?
Human chorionic gonadotropin is secreted by
The hormone which regulates sleep-wake cycle in man is
The respiratory rhythm centre is present in the
During meiosis I, the bivalent chromosomes clearly appear as tetrads during
In the diagram of types of placentation given above 'a', 'b', 'c? and ?d? respectively represent:
Which of the following is not purpose of transpiration ?
The basis of DNA finger-printing is
Arsenic containing medicine used for the treatment of syphilis, is
The monocotyledonous seed contains one large and shield shaped cotyledon known as
An orchid growing as an epiphyte on a mango tree is an example for
An oval depression called fossa is seen on