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Which two organs work closely together to detoxify harmful substances from the body?
A. Heart and lungs
B. Liver and kidneys
C. Stomach and pancreas
D. Intestines and gallbladder
Key Answer: B. Liver and kidneys
Explanation:
The liver converts fat-soluble toxins into water-soluble forms, and the kidneys eliminate these waste products through urine.
The kidney’s main job is to:
A. Produce hormones only
B. Filter waste and toxins from the blood
C. Store bile for digestion
D. Break down carbohydrates
Key Answer: B. Filter waste and toxins from the blood
Explanation:
Kidneys act as filters that remove waste, excess water, and toxins from the bloodstream.
Which lifestyle habit is most harmful to kidney health due to cadmium exposure?
A. Drinking coffee
B. Smoking cigarettes
C. Eating fruit
D. Exercising
Key Answer: B. Smoking cigarettes
Explanation:
Cigarette smoke contains cadmium, a heavy metal that accumulates in kidneys and damages them.
Which mineral ratio is important for healthy kidneys?
A. Sodium to potassium
B. Calcium to magnesium
C. Iron to zinc
D. Vitamin D to calcium
Key Answer: A. Sodium to potassium
Explanation:
A balance with higher potassium and moderate sodium intake protects kidney and heart function.
What kind of diet most reduces kidney stress?
A. High-sugar diet
B. Low-carb diet
C. High-protein diet
D. High-sodium diet
Key Answer: B. Low-carb diet
Explanation:
High blood sugar damages kidney filters; reducing carbohydrates helps prevent kidney stress.