BIO 139 KCTCS FINAL PAPER 2026 TESTED QUESTIONS WITH ACCURATE SOLUTIONS GRADED A+

BIO 139 KCTCS FINAL PAPER 2026 TESTED
QUESTIONS WITH ACCURATE SOLUTIONS
GRADED A+

●● 4 processes of respiration
Answer: Pulmonary ventilation, external respiration, transport of
respiratory gases, internal respiratory


●● Pulmonary ventilation
Answer: Movement of oxygen from the lungs to the blood and of carbon
dioxide from the blood to the lungs


●● External respiration
Answer: Movement of oxygen from the lungs to the blood and of carbon
dioxide form the blood to the lungs


●● Transport of respiratory gases
Answer: Transport of oxygen from the lungs to the tissue cells to the
lungs


●● Internal respiration
Answer: Movement of oxygen from blood to the tissue cells and carbon
dioxide from tissue cells to the blood

, ●● Respiratory zone
Answer: The actual site of gas exchange, is composed of the respiratory
bronchioles, alveolar ducts, and alveoli, all microscopic structures


●● Conducting zone
Answer: Includes all other respiratory passageways, which provide fairly
rigid conduits for air to reach the gas exchanges sites


●● Nasal cavity
Answer: Lies in and posterior to the external nose


●● Nostrils
Answer: Or nares; during breathing, air enters the cavity by passing
through it


●● Nasal spetum
Answer: A midline that divided nasal cavity


●● Posterior nasal aperturex
Answer: Choanae, the nasal cavity is continuous posteriorly with the
nasal portion of the pharynx through this part