General Science/Everyday Science MCQs
Topic Notes: General Science/Everyday Science
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
11
Diabetes patient’s urine has excess:
Answer:
Sugar
In diabetes, kidneys excrete excess glucose not reabsorbed from blood. This condition is called glycosuria. It is a diagnostic indicator.
12
Which of these are sexually transmitted?
Answer:
Syphilis, AIDS, and Gonorrhoea
All three are classic STDs. They spread via unprotected sexual contact and contaminated blood. Awareness and protection are crucial.
13
Diabetes is caused by malfunctioning of:
Answer:
Pancreas
The pancreas fails to produce enough insulin or cells resist insulin action. This causes high blood sugar. Lifestyle control and medication help manage it.
14
Germs entering through wounds can cause:
Answer:
Tetanus
Tetanus bacteria enter through open wounds and release toxins. The toxins affect nerves, causing spasms and lockjaw. Vaccination prevents the disease.
15
Alzheimer’s disease is characterized by degeneration of:
Answer:
Brain cells
Alzheimer’s is a progressive neurological disorder causing memory loss and cognitive decline. It is linked to plaques and tangles in brain cells. It mostly affects older adults.
16
Leukaemia involves:
Answer:
Increased WBCs
Leukaemia is cancer of blood-forming tissues, leading to abnormal WBC increase. It interferes with immunity and normal blood function. Treatment includes chemotherapy and bone marrow transplant.
17
Cirrhosis affects the:
Answer:
Liver
Cirrhosis is scarring of the liver, often due to alcoholism or hepatitis. It reduces liver function and may lead to failure. Early detection helps in management.
18
Contaminated water from a septic tank may spread:
Answer:
septic tank may spread:
Both cholera and typhoid spread through contaminated water. Tuberculosis, leprosy, and influenza spread differently. Community sanitation prevents outbreaks.
19
Which of the following is not mosquito-borne?
Answer:
Sleeping sickness
Sleeping sickness is transmitted by the tsetse fly, not mosquitoes. Malaria, dengue, and filariasis are mosquito-borne. Identifying vectors is vital in disease control.
20
Unsafe drinking water causes:
Answer:
Acute diarrhoea, cholera, schistosomiasis
Poor sanitation and unsafe water spread diarrheal diseases, cholera, and parasitic infections like schistosomiasis. Malaria and AIDS do not spread this way. Sanitation is key prevention.