#1
Which organ system is responsible for exchanging gases between the blood and the air in the lungs?
Respiratory system
ExplanationRespiratory system facilitates gas exchange in the lungs.
#2
What is the main function of the red blood cells in the human body?
Transporting oxygen
ExplanationRed blood cells primarily transport oxygen throughout the body.
#3
Which type of muscle is responsible for involuntary movements such as digestion and heart contractions?
Smooth muscle
ExplanationSmooth muscle governs involuntary movements like digestion.
#4
Which of the following is NOT a component of blood?
Antibodies
ExplanationAntibodies are not a component of blood.
#5
Which of the following organs is part of the central nervous system?
Spinal cord
ExplanationSpinal cord is part of the central nervous system.
#6
Which of the following is NOT a function of the skeletal system?
Production of hormones
ExplanationSkeletal system doesn't produce hormones.
#7
Which hormone is responsible for regulating blood sugar levels in the human body?
Insulin
ExplanationInsulin regulates blood sugar levels.
#8
What is the function of the nephrons in the kidneys?
Filtering blood
ExplanationNephrons filter blood in the kidneys.
#9
Which gland is often referred to as the 'master gland' because it controls several other endocrine glands?
Pituitary gland
ExplanationPituitary gland controls other endocrine glands.
#10
What is the function of the alveoli in the respiratory system?
Exchanging gases
ExplanationAlveoli facilitate gas exchange.
#11
Which part of the brain is responsible for coordinating muscle movements and maintaining balance?
Cerebellum
ExplanationCerebellum coordinates muscle movements and balance.