Match List - I with List - II.

List - I	List - II
(A) Physical barriers	(I) Acid in stomach, saliva in mouth and tears in eyes
(B) Cytokine barriers	(II) PMNL-neutrophils and monocytes
(C) Cellular barriers	(III) Skin on body, mucus coating of epithelium which lines respiratory tract
(D) Physiological barriers	(IV) Interferons

Choose the correct answer from the options given below :

Which of the following can be used by females as injections or implants under the skin for birth control.
(A) Oxytocin
(B) Follicle Stimulating Hormone (FSH)
(C) Progestogens alone
(D) Progestogen-estrogen combinations
Choose the correct answer from the options given below:

Medical termination of pregnancy is considered relatively safe -

Read the following passage carefully and answer the given questions.
Plasmodium, a tiny protozoan is responsible for the disease malaria. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal. Innate immunity consist of four types of barriers. These are – (i) Physical barriers- skin on our body is the main barrier which prevents entry of the micro-organisms. (ii) Physiological barriers- Acid in the stomach, saliva in the mouth, tears from eyes-all prevent microbial growth. (iii) Cellular barriers- Certain types of leukocytes (WBC) of our body like polymorpho-nuclear leukocytes (PMNL-neutrophils) and monocytes and natural killer (type of lymphocytes) in the blood as well as macrophages in tissues can phagocytose and destroy microbes. (iv) Cytokine barriers- virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection. Allergy is due to the release of chemicals like histamine and serotonin from the mast cells. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Drugs like barbiturates, amphetamines, benzodiazepines, and other similar drugs, that are normally used as medicines to help patients cope with mental illnesses like depression and insomnia, are often abused.
Which one of the followings is not the example of cellular barrier?

Brain capacities of Homo erectus was around:

Which of the following came to India as a contaminant with imported wheat

Match List I with List II

LIST I	LIST II
A. Salmonella typhi	I. Common Cold
B. Rhino virus	II. Typhoid
C. Streptococcus pneumoniae	III. Malaria
D. Plasmodium vivax	IV. Pneumonia

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A cube of side \( a \) has a charge \( Q \) at each of its vertices. What is the potential due to this charge array at the centre of the cube?

Match List-I with List-II

List-I (Inverse Trigonometric Function)	List-II (Principal Value)
(A) \(\sin ^{-1}\left(-\frac{1}{2}\right)\)	(I) \(\pi / 6\)
(B) \(\cos ^{-1}\left(-\frac{1}{2}\right)\)	(II) \(-\pi / 6\)
(C) \(\tan ^{-1}(-\sqrt{3})\)	(III) \(2 \pi / 3\)
(D) \(\cot ^{-1}(\sqrt{3})\)	(IV) \(-\pi / 3\)

Choose the correct answer from the options given below :

In the conversion of ethanol to ethene, the first step of the reaction involves the formation of

Amylose is a water-soluble part of starch. What is the percentage solubility of it?

In which case there is a change in oxidation number?

Answer the question on basis of passage given below :
Chloroform is a very useful solvent for oils, fats and waxes and many organic compounds. It can also be used for preserving biological specimens. Chloroform was used as a general anaesthetic in surgery for a long time but because of its toxic nature, it is no longer used these days.
Suggest a substitute for chloroform as a general anaesthetic :