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Q:

Involuntary actions in human beings such as blood pressure, salivation and vomiting are controlled by the

A) Spinal cord B) Hypothalamus
C) Pons D) Medulla
 
Answer & Explanation Answer: D) Medulla

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Q:

___, found in blood, is responsible for oxygen transportation.

A) WBC B) Plasma
C) Platelets D) RBC
 
Answer & Explanation Answer: D) RBC

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Q:

The embryo gets nutrition from the mother's blood with the help of a special tissue called

A) Uterus B) Placenta
C) Cervix D) Fallopian tube
 
Answer & Explanation Answer: B) Placenta

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Q:

Intestinal bacteria synthesizes which of the following in the human body?

A) Vitamin K B) Proteins
C) Fats D) Vitamin D
 
Answer & Explanation Answer: A) Vitamin K

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Q:

In which of the following tissues are the cells living, elongated and irregularly thickened at the corners?

A) Parenchyma B) Sclerenchyma
C) Aerenchyma D) Collenchyma
 
Answer & Explanation Answer: D) Collenchyma

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Q:

______ is a strong drug that doctors give to people to make them calm or help them sleep.

A) Barbiturate B) Antidepressant
C) Antihistamine D) Beta-Blocker
 
Answer & Explanation Answer: A) Barbiturate

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Q:

AIDS is caused by the Human Immunodeficiency Virus (HIV). The transmission of HIV infection generally occurs through

A) eating contaminated food and water   B) transfusion of contaminated blood and blood products
C) inhaling polluted air D) shaking hand with infected person
 
Answer & Explanation Answer: B) transfusion of contaminated blood and blood products

Explanation:

AIDS is caused by the Human Immuno deficiency Virus (HIV), a member of a group of viruses called retrovirus, which have an envelope enclosing the RNA genome. Transmission of HIV-infection generally occurs by (a) sexual contact with infected person, (b) by transfusion of contaminated blood and blood products, (c) by sharing infected needles as in the case of intravenous drug abusers and (d) from infected mother to her child through placenta.

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Q:

The disease cirrhosis affects which organ in the body?

A) Brain B) Liver
C) Heart D) Kidney
 
Answer & Explanation Answer: B) Liver

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