Bio 104 Exam 3 Questions and Answers with Verified Solutions
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Course
Bio 104
Institution
Bio 104
Bio 104 Exam 3 Questions and Answers
with Verified Solutions
What is the role of antidiuretic hormone (ADH) in the body?
It regulates water balance by increasing water reabsorption in the kidneys.
What is the function of myelin in the nervous system?
Myelin insulates nerve fibers, spee...
Bio 104 Exam 3 Questions and Answers
with Verified Solutions
What is the role of antidiuretic hormone (ADH) in the body?
✔✔ It regulates water balance by increasing water reabsorption in the kidneys.
What is the function of myelin in the nervous system?
✔✔ Myelin insulates nerve fibers, speeding up the transmission of nerve impulses.
What is the process by which blood clotting occurs?
✔✔ Coagulation.
What is the function of the lymphatic system in the body?
✔✔ It returns excess tissue fluid to the bloodstream and helps defend the body against infections.
What is the primary function of the hypothalamus in the endocrine system?
✔✔ It regulates hormone secretion by controlling the pituitary gland.
1
,What is the role of platelets in the blood?
✔✔ Platelets help in blood clotting by forming a plug at the site of an injury.
What is the function of the large intestine in the digestive system?
✔✔ It absorbs water and forms solid waste (feces).
What is the primary role of the spleen in the immune system?
✔✔ It filters blood and removes old or damaged red blood cells.
What is the term for the process of gas exchange between the blood and tissues?
✔✔ Internal respiration.
What is the role of the thyroid gland in metabolism?
✔✔ It produces hormones that regulate metabolism, such as thyroxine.
What is the purpose of the epiglottis in the respiratory system?
✔✔ It prevents food from entering the trachea during swallowing.
2
,What is the function of neurotransmitters in the nervous system?
✔✔ They transmit signals across synapses between neurons.
What is the role of the renal tubules in the kidneys?
✔✔ They reabsorb water, ions, and nutrients from the filtrate during urine formation.
What is the significance of the sinoatrial (SA) node in the heart?
✔✔ It acts as the natural pacemaker, initiating the heartbeat.
What is the role of bile in the digestive process?
✔✔ Bile aids in the digestion and absorption of fats.
What is the primary function of the circulatory system?
✔✔ To transport nutrients, gases, and wastes throughout the body.
What is the role of the alveoli in the respiratory system?
✔✔ They are the sites of gas exchange in the lungs.
3
, What hormone regulates blood sugar levels in the body?
✔✔ Insulin.
What type of blood vessel carries blood away from the heart?
✔✔ Arteries.
What organ filters waste from the blood to form urine?
✔✔ Kidneys.
What is the function of white blood cells?
✔✔ To fight infections and protect the body from foreign invaders.
What is the main function of the digestive system?
✔✔ To break down food and absorb nutrients.
What is the structure that connects muscles to bones?
✔✔ Tendons.
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