Human Diseases — Part 1 MCQs with Explanations

Antibodies are like tiny soldiers in your body that fight off infections. Different types of antibodies have different jobs and abilities. * IgG (Immunoglobulin G): This is the only type of antibody that can cross the placenta . The placenta is a temporary organ that connects a developing baby to the mother's uterus. Because IgG can cross the placenta, it provides passive immunity to the fetus (baby) before birth, protecting the baby from infections. * IgA (Immunoglobulin A): Found mainly in body secretions like tears, saliva, and breast milk. It helps protect surfaces like your airways and digestive system from infections. IgA does *not* cross the placenta. * IgE (Immunoglobulin E): Involved in allergic reactions and fighting off parasitic infections. IgE does *not* cross the placenta. * IgM (Immunoglobulin M): The first antibody produced during an infection. It's a big molecule and stays mostly in the bloodstream. IgM does *not* cross the placenta. So, IgG is special because it can travel from the mother to the baby across the placenta, providing crucial protection during pregnancy.

* Arsenic-74: This radioisotope is primarily used to locate tumors within the body. * Cobalt-60: Cobalt-60 is a strong radioactive source used in radiation therapy to treat cancer . It works by destroying cancerous cells. * Iodine-131: This radioisotope is readily absorbed by the thyroid gland. Therefore, it's used to measure the activity of the thyroid gland and diagnose thyroid disorders. * Sodium-24: This radioisotope is used to study blood disorders , particularly issues related to blood circulation. Therefore, the correct matching is: a - 3 (Arsenic-74 - Tumour) b - 4 (Cobalt-60 - Cancer) c - 1 (Iodine-131 - Activity of thyroid gland) d - 2 (Sodium-24 - Blood disorder) So, the correct answer is Option C: a-3, b-4, c-1, d-2

Option "deadly virus" is the correct answer for this question under Human Diseases.

Virus is the correct answer to “Which of the following does not have any enzyme in its cells”. This question is standard in competitive examination syllabi for Human Diseases.

Aonia is the correct answer to “Which one of the following is useful in the treatment of scurvy disease”. This question is standard in competitive examination syllabi for Human Diseases.

ringworm is the correct answer to “A disease caused by fungus is”. This question is standard in competitive examination syllabi for Human Diseases.

Filaria is the correct answer to “The disease caused by nematodes”. This question is standard in competitive examination syllabi for Human Diseases.

Polio is the correct answer to “Against which of the following diseases has Government of India decided to given Bivalent ORV in place of Trivalent”. This question is standard in competitive examination syllabi for Human Diseases.

Cataract is the correct answer to “If the lens in eye becomes opaque, the disease is called”. This question is standard in competitive examination syllabi for Human Diseases.

Arsenic-74 is the correct answer to “The radio isotope used in the detection of tumour is”. This question is standard in competitive examination syllabi for Human Diseases.

Arthritis is the correct answer to “Poor sanitation conditions may not be the likely reason behind which of the following diseases/conditions”. This question is standard in competitive examination syllabi for Human Diseases.

a-1, b-2, c-3, d-4 is the correct answer to “Match List-I with List-II and select the correct answer: List-I (Disease) List-II (Cause) a. Marasmus 1. Prolonged Starvation b. Kwashiorkar 2. Protein Deficiency c. T.B. 3. Bacterial Infection d. Hepatitis B 4. Viral Infection”. This question is standard in competitive examination syllabi for Human Diseases.

Hepatitis-B is the correct answer to “Which one of the following diseases is not due to contamination of water”. This question is standard in competitive examination syllabi for Human Diseases.

3 is the correct answer to “Which one of the following types of medicines is used for treating indigestion? 1. Antibiotic 2. Analgesic 3. Antacid 4. Antiseptic”. This question is standard in competitive examination syllabi for Human Diseases.

It is a disorder of the brain is the correct answer to “What is 'Alzheimer' disease”. This question is standard in competitive examination syllabi for Human Diseases.

Cirrhosis is the correct answer to “Which of the following diseases is not transmitted from one person to another”. This question is standard in competitive examination syllabi for Human Diseases.

Cholera is the correct answer to “Which of the following is a waterborne disease”. This question is standard in competitive examination syllabi for Human Diseases.

Young women is the correct answer to “The disease hysteria is classed in”. This question is standard in competitive examination syllabi for Human Diseases.

Both A and R are true and R is the correct explanation of A is the correct answer to “Assertion (A) In filariasis, the lower legs and scrotum are swelled unproportionate level. Reason (R) The filarial worm blocks the lymph vessels and lymph node.”. This question is standard in competitive examination syllabi for Human Diseases.

Mosquito bites is the correct answer to “HIV does not spread AIDS through”. This question is standard in competitive examination syllabi for Human Diseases.

variola virus is the correct answer to “Smallpox is caused by”. This question is standard in competitive examination syllabi for Human Diseases.

Cholera is the correct answer to “Which of the following is a disease caused by drinking contaminated water”. This question is standard in competitive examination syllabi for Human Diseases.

viral disease is the correct answer to “Rabies is a”. This question is standard in competitive examination syllabi for Human Diseases.

bacteria is the correct answer to “The cause of tuberculosis is”. This question is standard in competitive examination syllabi for Human Diseases.

Absence of blood clotting is the correct answer to “Haemophilia is a hereditary disease which affects as”. This question is standard in competitive examination syllabi for Human Diseases.

1 and 2 is the correct answer to “Which of the following pairs of vector and disease is/are correctly matched? Vector Disease 1. Anopheles Malaria 2. Aedes aegypti Chikunguniya 3. Tsetse fly Filariasis 4. Bed bugs Sleeping Sickness Select the correct answer:”. This question is standard in competitive examination syllabi for Human Diseases.

Both A and C is the correct answer to “Which of the following is the bacterial disease in humans”. This question is standard in competitive examination syllabi for Human Diseases.

bulimia is the correct answer to “A man, who does not know when to stop eating, is suffering from”. This question is standard in competitive examination syllabi for Human Diseases.

benzene is the correct answer to “The chemical which is used in art and craft and can cause anaemia and leukaemia is”. This question is standard in competitive examination syllabi for Human Diseases.

Blood is the correct answer to “Thalassemia is a hereditary disease which affects”. This question is standard in competitive examination syllabi for Human Diseases.

Atropine is the correct answer to “The pupils of human eye are dilated with a very dilute solution of an alkaloid which is”. This question is standard in competitive examination syllabi for Human Diseases.

A hereditary defect is the correct answer to “Haemophilia is”. This question is standard in competitive examination syllabi for Human Diseases.

Wheat crop is the correct answer to “Kamal Bunt is a disease of”. This question is standard in competitive examination syllabi for Human Diseases.

Measles is the correct answer to “Which of the following is a communicable disease”. This question is standard in competitive examination syllabi for Human Diseases.

Non-communicable diseases is the correct answer to “Genetic disorders are”. This question is standard in competitive examination syllabi for Human Diseases.

Retro virus is the correct answer to “The virus responsible for AIDS is an example of”. This question is standard in competitive examination syllabi for Human Diseases.

Typhoid is the correct answer to “Which among the following disease is not caused by viruses”. This question is standard in competitive examination syllabi for Human Diseases.

Zn is the correct answer to “White tip of maize leaves indicates the deficiency of”. This question is standard in competitive examination syllabi for Human Diseases.

Metformin is the correct answer to “Which drug is used as an Anti-Diabetic drug”. This question is standard in competitive examination syllabi for Human Diseases.

Penicillin is the correct answer to “Which was the first antibiotic”. This question is standard in competitive examination syllabi for Human Diseases.