1.
Which hormone is found primarily in males?
Correct Answer
C. Testosterone
Explanation
Testosterone is primarily found in males. It is the primary male sex hormone and is responsible for the development of male reproductive tissues and secondary sexual characteristics such as increased muscle mass, facial hair, and deepening of the voice. Testosterone is produced in the testes and plays a crucial role in regulating sexual function, fertility, and overall well-being in males.
2.
Which hormone stimulates protein synthesis and general growth in the body?
Correct Answer
A. STH (also HGH)
Explanation
STH (also known as HGH) is the hormone that stimulates protein synthesis and general growth in the body. It is produced by the pituitary gland and plays a crucial role in promoting growth and development during childhood and adolescence. STH also helps regulate metabolism and maintain healthy body composition. Aldosterone is a hormone that regulates blood pressure and electrolyte balance, LH (luteinizing hormone) is involved in reproductive functions, and epinephrine is responsible for the body's "fight or flight" response.
3.
Which of the following hormones is responsible for the "fight or flight" activity when startled or scared?
Correct Answer
C. EpinepHrine
Explanation
Epinephrine, also known as adrenaline, is responsible for the "fight or flight" response when startled or scared. It is released by the adrenal glands in response to stress or danger. Epinephrine increases heart rate, blood pressure, and blood flow to the muscles, preparing the body for a physical response to the threat. This hormone helps to mobilize energy reserves and heighten alertness, enabling individuals to either confront the danger or escape from it.
4.
Which of these stimulates the activities of both the ovaries and the testes?
Correct Answer
A. LH
Explanation
LH, or luteinizing hormone, stimulates the activities of both the ovaries and the testes. In females, LH triggers ovulation and the production of progesterone. In males, LH stimulates the production of testosterone by the testes. Therefore, LH is responsible for regulating reproductive functions in both males and females.
5.
Which of the following hormones is produced as part of the stress response?
Correct Answer
A. Cortisol
Explanation
Cortisol is produced as part of the stress response. This hormone is released by the adrenal glands in response to stress and helps the body to cope with stress by increasing blood sugar levels, suppressing the immune system, and aiding in metabolism. It plays a crucial role in the fight-or-flight response and helps the body to respond to stressful situations. ADH, insulin, and prolactin are not directly involved in the stress response.
6.
Which of these hormones would be most prevalent in a woman who has just given birth?
Correct Answer
D. Prolactin
Explanation
Prolactin is the hormone responsible for stimulating milk production in the mammary glands. After giving birth, a woman's body undergoes hormonal changes to support breastfeeding. Prolactin levels increase significantly to initiate and maintain milk production. Therefore, it is expected that prolactin would be most prevalent in a woman who has just given birth.
7.
Which of the following pairs of hormones work to regulate the levels of glucose in the blood?
Correct Answer
B. Insulin & glucagons
Explanation
Insulin and glucagon are both hormones that work together to regulate the levels of glucose in the blood. Insulin is released by the pancreas when blood glucose levels are high, and it helps to lower blood glucose levels by promoting the uptake of glucose into cells. On the other hand, glucagon is released by the pancreas when blood glucose levels are low, and it helps to raise blood glucose levels by promoting the breakdown of stored glycogen into glucose. Together, insulin and glucagon maintain the balance of glucose in the blood.
8.
Which of the following hormones regulates sodium levels in the blood?
Correct Answer
B. Aldosterone
Explanation
Aldosterone is a hormone produced by the adrenal glands that plays a key role in regulating sodium and potassium levels in the blood. It promotes the reabsorption of sodium and the excretion of potassium in the kidneys, thereby helping to maintain blood pressure and fluid balance. ADH (antidiuretic hormone) regulates water balance, STH (somatotropic hormone) is related to growth, and cortisol is involved in
9.
Which hormone is released by the kidneys?
Correct Answer
C. Erythropoietin
Explanation
Erythropoietin is the hormone released by the kidneys. It is responsible for stimulating the production of red blood cells in the bone marrow. This hormone plays a crucial role in maintaining the oxygen-carrying capacity of the blood. When the kidneys detect low oxygen levels, they release erythropoietin, which then stimulates the bone marrow to produce more red blood cells. This helps to increase the oxygen-carrying capacity of the blood and ensure that the body's tissues receive an adequate oxygen supply.
10.
Which hormone is released to promote ovulation in ovaries?
Correct Answer
B. Luteinizing hormone
Explanation
Luteinizing hormone is released to promote ovulation in ovaries. This hormone is produced by the pituitary gland and plays a crucial role in the menstrual cycle. It stimulates the release of an egg from the ovary, allowing for fertilization and potential pregnancy. Luteinizing hormone levels surge just before ovulation, triggering the release of the mature egg. Therefore, it is the correct answer for the given question.