Q11. What is the primary characteristic of autism?
a) High blood sugar levels
b) Chronic joint pain
c) Difficulty in communication and social interaction
d) Inflammation of the airways
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Correct Answer: c) Difficulty in communication and social interaction
Explanation: Autism Spectrum Disorder (ASD) is primarily characterized by challenges with social interaction, communication, and by restricted and repetitive behavior. It is a developmental disorder that impacts the nervous system.
Q12. Osteoporosis is a condition that affects the:
a) Eyes
b) Bones
c) Skin
d) Blood
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Correct Answer: b) Bones
Explanation: Osteoporosis is a bone disease that occurs when the body loses too much bone, makes too little bone, or both. As a result, bones become weak and may break from a fall or, in severe cases, from sneezing or minor bumps.
Q13. Which is not a symptom of diabetes?
a) Increased thirst
b) Frequent urination
c) Blurry vision
d) Decreased appetite
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Correct Answer: d) Decreased appetite
Explanation: Common symptoms of diabetes include increased thirst, frequent urination, and blurry vision. Decreased appetite is generally not associated with diabetes. In fact, increased hunger can be a symptom due to the inefficiency in glucose use.
Q14. Rheumatoid arthritis is:
a) A bone disease
b) A muscle disease
c) An autoimmune disease
d) A neurological disorder
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Correct Answer: c) An autoimmune disease
Explanation: Rheumatoid arthritis is an autoimmune disease in which the body’s immune system mistakenly attacks the joints, causing inflammation and pain. It’s not limited to the joints and can affect other body systems, including the skin, eyes, lungs, and blood vessels.
Q15. Dengue fever is transmitted by:
a) Tainted food
b) Airborne viruses
c) Mosquito bites
d) Contaminated water
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Correct Answer: c) Mosquito bites
Explanation: Dengue fever is transmitted by the bite of an Aedes mosquito infected with a dengue virus. The mosquito becomes infected when it bites a person with dengue virus in their blood.
Q16. Which of the following is a symptom of anemia?
a) Rapid heartbeat
b) Yellowing of the skin
c) High blood pressure
d) Increased energy levels
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Correct Answer: a) Rapid heartbeat
Explanation: Anemia, a condition in which there aren’t enough healthy red blood cells to carry adequate oxygen to the body’s tissues, often causes fatigue and weakness. A rapid heartbeat or palpitations can also occur as the heart must pump more blood to compensate for the lack of oxygen in the blood.
Q17. Cataracts primarily affect which part of the body?
a) Ears
b) Eyes
c) Lungs
d) Liver
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Correct Answer: b) Eyes
Explanation: Cataracts affect the eyes, specifically the lens, leading to a decrease in vision. They often develop slowly and can affect one or both eyes. Symptoms may include faded colors, blurry vision, halos around light, trouble with bright lights, and trouble seeing at night.
Q18. Which is not a known cause of cancer?
a) Genetic factors
b) Viruses
c) Consuming too much sugar
d) Exposure to radiation
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Correct Answer: c) Consuming too much sugar
Explanation: While lifestyle factors like diet can influence the risk of developing certain types of cancer, consuming sugar itself is not a direct cause of cancer. Known causes of cancer include genetic factors, certain viruses (like HPV), and exposure to radiation. There’s no conclusive evidence that sugar intake directly causes cancer.
Q19. Asthma is a chronic disease that affects the:
a) Heart
b) Kidneys
c) Lungs
d) Brain
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Correct Answer: c) Lungs
Explanation: Asthma is a chronic disease that affects the airways in the lungs. These airways, or bronchial tubes, allow air to come in and out of the lungs. In asthma, the inside walls of the airways become sore and swollen, causing difficulty in breathing.
Q20. Scurvy is caused by a deficiency of which vitamin?
a) Vitamin A
b) Vitamin B12
c) Vitamin C
d) Vitamin D
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Correct Answer: c) Vitamin C
Explanation: Scurvy is a disease resulting from a lack of vitamin C. Early symptoms include weakness, feeling tired, and sore arms and legs. Without treatment, decreased red blood cells, gum disease