21. What causes the disease known as Dropsy?
(a) Gathering of watery fluid in cavities of the body
(b) Gathering of watery fluid in tissues of the body
(c) Both of these
(d) None of these
22. Hepatitis A is transmitted by contaminated food or unsterilized hypodermic needles, and hepatitis C is transmitted through blood and body fluids. How is hepatitis B transmitted?
(a) By injections, usually during blood transfusion
(b) Through sexual contact
(c) Both of them
(d) None of them
23. Hepatitis E is transmitted through contaminated drinking water. How is Hepatitis D transmitted?
(a) Only if Hepatitis B is present
(b) Only if Hepatitis C is present
(c) Only if Hepatitis D is present
(d) Only if Hepatitis A is present
24. Which disease increases the risk of stroke, kidney disease, and heart attack?
(a) Dementia
(b) Dengue
(c) Jaundice
(d) Hypertension
25. What is Insomnia?
(a) Sleepiness caused by a drug
(b) Unconsciousness caused by a drug
(c) Sleepiness caused by an external situation such as happiness or worry
(d) None of these
26. Which of the following is yellow discoloration of the skin and whiteness of the eyes?
(a) Hepatitis
(b) Anaemia
(c) Blood Cancer
(d) Jaundice
27. Which disease occurs due to the runaway of white blood cells?
(a) Cancer
(b) Blood scarcity
(c) Leukaemia
(d) None of these
28. For which discovery was Maurice Wilkins awarded the Nobel Prize in 1962?
(a) DNA
(b) RNA
(c) Bacteria
(d) Double helix structure of DNA
29. Why does the human body have a pH of 7.4?
(a) Urinary system
(b) Buffer system
(c) Heredity system
(d) None of these
30. Myopia is an eye disease in which the patient can see objects clearly up close but has difficulty seeing objects at a distance.
(a) True
(b) False