#1
Which of the following is NOT a risk factor for cardiovascular diseases?
Regular exercise
ExplanationRegular exercise reduces the risk of cardiovascular diseases.
#2
What is the primary function of the kidneys in the human body?
Filtration of blood and waste elimination
ExplanationThe kidneys filter blood, removing waste and excess fluid from the body.
#3
Which of the following is a primary function of platelets in the blood?
Clotting
ExplanationPlatelets play a key role in blood clotting, preventing excessive bleeding.
#4
What is the primary mode of transmission of the human immunodeficiency virus (HIV)?
Sexual contact
ExplanationHIV is primarily transmitted through sexual contact, as well as through blood and from mother to child.
#5
What is the primary function of insulin in the human body?
To decrease blood sugar levels
ExplanationInsulin facilitates the uptake of glucose by cells, reducing blood sugar levels.
#6
Which of the following organs produces insulin?
Pancreas
ExplanationInsulin is produced by the pancreas, specifically by the beta cells in the islets of Langerhans.
#7
Which of the following is a characteristic of Type 1 Diabetes?
Autoimmune destruction of pancreatic beta cells
ExplanationType 1 Diabetes involves the body's immune system attacking pancreatic beta cells.
#8
Which of the following is a characteristic of asthma?
Narrowing of airways due to inflammation and bronchoconstriction
ExplanationAsthma involves inflammation and constriction of the airways, causing breathing difficulties.
#9
Which of the following is NOT a symptom of hypothyroidism?
Increased heart rate
ExplanationHypothyroidism is characterized by a slower heart rate, among other symptoms.
#10
What is the leading cause of chronic kidney disease?
Type 2 Diabetes
ExplanationType 2 Diabetes is a leading cause of chronic kidney disease due to its impact on kidney function.
#11
Which of the following is NOT a characteristic of rheumatoid arthritis?
Morning stiffness lasting less than 30 minutes
ExplanationMorning stiffness lasting less than 30 minutes is more common in osteoarthritis, not rheumatoid arthritis.
#12
Which of the following is NOT a function of the lymphatic system?
Transporting nutrients
ExplanationWhile the lymphatic system transports lymph and aids in immune function, it does not transport nutrients.
#13
What is the mechanism of action of statins?
Inhibit cholesterol synthesis
ExplanationStatins work by reducing the production of cholesterol in the liver.