List of practice Questions

Closing layers of lenticels may show the deposition of
Egg of frog is
Jute fibres are anatomically ............
The older resin clogged secondary xylem in the central part of the tree trunk and the younger outer secondary xylem which conducts water are __ and __ respectively.
The phyllotaxy is of decussate type in
Apocarpous gynoecium and rattle shaped stigma .are characteristic features of which family?
Albuminous cells are found in .........
Which one is the first heart sound ?
Which of the following element is important to maintain structure of immunoglobulin ?
Which of the following plants develop characters of xerophytes ?
In which layer of the wall of alimentary canal, secretory glands are present ?
Why sometimes, even diploid offspring is produced through Parthenogenesis ?
Which of the following has a role of sertoli cells in spermatogenesis ?
Which of the following takes part in formation of placenta ?
Find out odd one from the following options by considering its role in nitrogen cycle.
Which of the following is correct for lens focussing while seeing distant object ?
Structurally, what are olfactory nerve cells ?
It helps in differentiation of cells of the immune system
Through which process, starch of the guard cell is converted into PEP ions ?
In thistle funnel experiment, what will occur if sugar solution is added to beaker, after the process of osmosis stops ?
What is wrong about $CO_3^{2-} \, ion ?$
A $ 20 \, \mu F $ capacitor is connected to $ 45 \,V $ battery through a circuit whose resistance is $ 2000\, \Omega $ . What is the final charge on the capacitor?
Oxygen and hydrogen are at the same temperature $ T $ . The ratio of the mean kinetic energy of oxygen molecules to that of the hydrogen molecules will be
If $200\,MeV$ energy is released in the fission of a single nucleus of ${ }_{92} U ^{235}$, how many fissions must occur per second to produce a power of $1 \,kW ?$
Find ratio of acceleration due to gravity $g$ depth d and at height $h$, where $d = 2h$.