Multiple Choice QuestionsWhich one is correct?
Salmonella typhi and Haemophilus influenzae cause pneumonia
Widal test is done for malaria
Entamoeba histolytica causes amoebiasis
Wuchereria causes enterobiasis
Which of the following is correct?
All fungi are filamentous.
Transfer of DNA from one bacteria to another bacteria cannot take place
Virus cannot have both DNA and RNA
Protists reproduce asexually only
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea, trichomoniasis?
Trichomoniasis is a STD whereas other are not
Gonorrhoea is a viral disease whereas others are bacterial
HIV is a pathogen whereas others are diseases
Hepatitis B is eradicated completely whereas others are not
Assertion : Interferons are antiviral proteins.
Reason : Interferons are secreted by virus infected cells.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false
If both assertion and reason are false
A person who shows unpredictable moods, outbursts of emotions, quarrelsome behaviour and conflicts with others is suffering from
borderline personality disorder (BPD)
mood disorder
addictive disorder
schizophrenia
Cytokines that provide non- specific immnity against virus are
interlukin
tumour necrosis
colony stimulating
interferon
Assertion: Sporozoites of malarial parasite enter in the human body due to biting of freshly born female Anopheles mosquito, whose mother was a carrier of malarial parasite.
Reason: Male and female gametocytes of malarial parasites are formed in the human intestine
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause
reduction in oxygen transport
increase in blood pressure
cancer
retardation of growth of foetus.
C.
cancer
Cancer is caused by cells dividing repeatedly out of control. They cease to respond to the normal signals around them and form unspecialised masses of cells called tumours. Lung cancer usually starts in the epithelium of the bronchioles, so-called bronchial carcinoma. It then usually spreads throughout the lungs. It is caused almost exclusively by smoking.
Tobacco smoke contains chemicals responsible for lung cancer. The most important of these are
polycyclic hydrocarbons which are converted in the body to carcinogens.
Besides, carbon monoxide combines with haemoglobin and reduces oxygen transport about 15% in smokers and nicotine increases blood pressure, heart rate and constriction of blood vessels.
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