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Which one of the following pairs of causative agents and type of the disease is correct? I. Leishmania – Sleeping sickness II. Nematode – Elephantiasis III. Trypanosoma – Kala azar IV. Staphylococcus – Acne a) I and II b) I and III c) II and III d) II and IV

Option d) II and IV. Leishmania causes kala-azar. Elephantiasis is caused by the filarial worm, a nematode. Trypanosoma causes sleeping sickness.... View Article

Quantasomes are a) Isolated areas on mitochondria where respiration occurs is also known as lysosomes b) Isolated areas on chloroplast lamellae where photosynthetic units exist c) Both (A) and (B) d) None of the above

Option b) Isolated areas on chloroplast lamellae where photosynthetic units exist. Quantasomes are considered to be photosynthetic units since it... View Article

Lichens show symbiotic relationships between a) Fungus and roots of higher plants b) Two fungi c) Fungus and alga d) Two algae

Option c) Fungus and algae.... View Article

Descending loop of Henle is for a) Absorption of NH3 b) Absorption of Na+ c) Release of urea d) Maintaining water balance

Option d) Maintaining water balance. Henle's loop is mainly accountable for the reabsorption of salts and water.... View Article

The moment of inertia of a circular ring is I about an axis perpendicular to its plane and passing through its center. About an axis passing through the tangent of the ring in its plane, its moment of inertia is:

Moment of Inertia of ring about an axis perpendicular to its plane is... View Article

Long answer type questions: Give the importance of soil. Explain any three factors responsible for soil formation.

Minerals and nutrients are supplied to the plants through soil. Soil helps in the exchange of air between roots and the atmosphere. It also... View Article

(27^-2/3)^1/2 s equal to

Given: = 1/3... View Article

Assertion Nuclear forces are called short-range forces. Reason Nuclear forces operate over a very small distance i.e., 10−15 m or 1 fermi. a) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion b) Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion c) Assertion is correct but Reason is incorrect d) Both Assertion and Reason are incorrect

Option a) Both Assertion and Reason are correct and Reason is the correct explanation for Assertion. Strong nuclear forces can act only over a... View Article

Androphore is lightly differentiated in the flower of—————– a) Salvia b) Calycanthus c) Passiflora d) Rafflesia

Option c) Passiflora. In Passiflora, androphore is lightly differentiated.... View Article

Force is directly proportional to a) Rate of change in momentum b) Rate of change in velocity c) Rate of change in distance d) None of the option

Option a) Rate of change in momentum.... View Article

Write the electron dot structure for the following compounds 1) H2 2) 02 3) N2

The electron dot structure of H2 molecule is as shown in the figure below.The electron dot structure of O2 molecule is as shown in the figure... View Article

Bernoulli’s theorem is applicable in the case of: a) incompressible liquid in streamlined flow b) compressible liquid in streamlined flow c) incompressible liquid in turbulent flow d) compressible liquid in turbulent flow

Option a) incompressible liquid in streamlined flow.... View Article

Which one of the following alkali metals gives hydrated salts? a) K b) Li c) Na d) Cs

Option b) Li. Li+ is the smallest alkali metal with the highest charge density. Hence Li+ displays a maximum degree of hydration than any other... View Article

The minimum number of carbon atoms that should be present in a monosaccharide is :a) 2b) 3c) 4d) 5

Option b) 3. A monosaccharide features a skeleton of carbon atoms and the minimum number of carbon atoms is three.... View Article

Is work-energy theorem valid in a non-inertial frame?

An accelerated frame is called a non-inertial frame where the body is accelerating. Yes, we can apply the work-energy theorem in a non-inertial... View Article

A wheel is at rest. Its angular velocity increases uniformly and becomes 80 radians second after 5 seconds. the total angular displacement is:

Given, = 200 radian... View Article

What kind of a molecule is PCl3? a) Non-polar covalent b) Ionic c) Polar covalent d) None of these

Option c) Polar covalent. We know that phosphorus features positive electrons in its outermost shell and needs three more electrons to complete... View Article

Fill in the blank with a suitable verb bread and butter —————- wholesome food a) Are b) Has c) Is d) Have

Option c) Is. If two nouns are joined by “and” we use a singular verb for it. Hence “is” is used.... View Article

Select the correct noun form of the given verb: (manage) This event will need careful ___________. a) Manage b) Manager c) Management d) Managing

Option c) Management.... View Article

State true or false: all squares are similar

True. We know that all the angles in a square are right angles and all the sides are equal. Hence we can enlarge a smaller square to the size of... View Article

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