Cancer cells exhibit:
1. | Contact inhibition | 2. | Low division rate |
3. | Metastasis | 4. | High degree of differentiation |
Identify the incorrectly matched pair regarding Plasmodium, the protozoan responsible for causing malaria in humans:
1. |
Cause of malignant tertian malaria |
Plasmodium falciparum |
2. |
Paroxysm [clinical features] of malaria |
Release of hemozoin on rupture of RBCs |
3. |
Fertilization during the life cycle |
Gut of female anopheles |
4. |
Infective stage to mankind |
Trophozoites |
Match each item in Column I [Barriers in innate immunity] with one in Column II [Example] and select your answer from the codes given:
|
Column I |
|
Column II |
A. |
Physical |
a. |
Skin and mucus membranes |
B. |
Physiological |
b. |
PMNL |
C. |
Cellular |
c. |
Acid in stomach and saliva in mouth |
D. |
Cytokine |
d. |
Interferon |
Codes
Options: | A | B | C | D |
1. | a | b | c | d |
2. | d | b | c | a |
3. | a | c | b | d |
4. | d | c | b | a |
The early screening test for HIV infection is :
1. ELISA
2. Western Blot
3. Culture of HIV
4. Detection of opportunistic infections
HIV selectively infects and destroys:
1. | CD4 T Lymphocytes | 2. | CD8 T Lymphocytes |
3. | T-Suppressor cells | 4. | B-Lymphocytes |
Cancer detection is mainly based on:
1. | Radiography | 2. | Ultrasonography |
3. | Magnetic resonance imaging | 4. | Histopathology |
A tumor that invades surrounding tissues is usually capable of producing metastases, may recur after attempted removal, and is likely to cause death unless adequately treated. Such a tumor is called a:
1. | Benign tumor | 2. | Malignant tumor |
3. | Teratoma | 4. | Secondary tumor |
Which of the following is not a hallucinogenic drug?
1. | LSD | 2. | Mescaline |
3. | Morphine | 4. | Hashish |
Cocaine acts through:
1. | Interfering with the action of acetylcholine |
2. | Potentiating catecholamines |
3. | Interfering with the transport of dopamine |
4. | Releasing endorphins and enkephalins |
Cannabinoid receptors are principally located in the brain but they also have side effects on:
1. | GIT | 2. | CVS |
3. | Liver | 4. | Lungs |