Q31. What is the term for the tube that carries urine from the bladder to the outside of the body?
A) Ureter
B) Urethra
C) Vas deferens
D) Epididymis
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Correct Answer: B) Urethra
Explanation: The urethra is the tube that carries urine from the bladder to the outside of the body.
Q32. Which part of the digestive system is primarily responsible for water absorption?
A) Esophagus
B) Small intestine
C) Stomach
D) Large intestine
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Correct Answer: D) Large intestine
Explanation: The large intestine is primarily responsible for absorbing water and electrolytes from food residues before they are excreted as waste.
Q33. What is the main function of the hypothalamus?
A) To regulate growth
B) To control body temperature
C) To produce insulin
D) To digest fats
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Correct Answer: B) To control body temperature
Explanation: The hypothalamus helps keep the body’s internal functions in balance. It helps regulate many important functions, including body temperature and energy levels.
Q34. Which vitamin is essential for the absorption of calcium?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D
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Correct Answer: D) Vitamin D
Explanation: Vitamin D is crucial for the absorption of calcium from the stomach and for the functioning of calcium in the body.
Q35. What is the term for the process of blood cell formation?
A) Hemostasis
B) Hemolysis
C) Hematopoiesis
D) Hemorrhage
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Correct Answer: C) Hematopoiesis
Explanation: Hematopoiesis is the process of creating new blood cells in the body, which occurs in the bone marrow.
Q36. Which part of the body is affected by hepatitis?
A) Heart
B) Lungs
C) Liver
D) Brain
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Correct Answer: C) Liver
Explanation: Hepatitis affects the liver, causing inflammation. It can be caused by viruses, toxins, or immune system disorders.
Q37. What is the primary function of the gallbladder?
A) To produce bile
B) To store bile
C) To digest proteins
D) To absorb fats
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Correct Answer: B) To store bile
Explanation: The gallbladder stores bile, a fluid produced by the liver to help digest fats.
Q38. Which hormone is responsible for the fight-or-flight response?
A) Insulin
B) Adrenaline
C) Cortisol
D) Estrogen
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Correct Answer: B) Adrenaline
Explanation: Adrenaline, also known as epinephrine, is a hormone released in response to stress, triggering the fight-or-flight response.
Q39. What is the function of the olfactory bulb in the brain?
A) To process visual information
B) To regulate emotions
C) To detect smells
D) To control appetite
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Correct Answer: C) To detect smells
Explanation: The olfactory bulb is a structure in the forebrain involved in olfaction, or the sense of smell.
Q40. Which part of the human body produces the hormone testosterone?
A) Adrenal glands
B) Pancreas
C) Testes
D) Thyroid gland
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Correct Answer: C) Testes
Explanation: The testes primarily produce testosterone, a key male sex hormone involved in developing male reproductive tissues as well as promoting secondary sexual characteristics.