BIO 105 UPDATED EXAMS 2026 QUESTIONS AND
ANSWERS SURE A+
✔✔Ossicles - ✔✔malleus, incus, stapes. Vibrate in the inner ear in response to
tympanic membrane
✔✔Blind spot - ✔✔where the optic nerve meets the retina
✔✔Arteries - ✔✔carry oxygenated blood away from the heart
✔✔Veins - ✔✔carry blood to the heart
✔✔The right side of the heart pumps blood to - ✔✔The lungs
✔✔The left side of the heart pumps blood to - ✔✔The rest of the body
✔✔What is the valve between the right atrium f right ventricle? - ✔✔tricuspid valve
✔✔What is the valve between the left atrium & left ventricle? - ✔✔bicuspid/mitral valve
✔✔The valve found between the atria & ventricles are known as - ✔✔Atrioventricular
valves (AV)
, ✔✔What are the names for the semilunar valves? - ✔✔Pulmonary & aortic semilunar
valve
✔✔Gas & nutrient exchange happen in vessels known as - ✔✔Capillaries
✔✔Contraction in the heart is initiated by autorhythmic cells in the - ✔✔Sinoatrial (SA)
node
✔✔When cardiac muscles contract it is in - ✔✔Systole
✔✔When cardiac muscles relax it is in - ✔✔Diastole
✔✔Most oxygen is transported in the blood bound to - ✔✔hemoglobin
✔✔fragments of cells that help blood clot - ✔✔platelets
✔✔Immune cells that function outside of the bloodstream - ✔✔Leukocytes (WBC)
✔✔External respiration - ✔✔gas exchange between lungs and blood
✔✔Internal respiration - ✔✔Exchange of gases between cells of the body and the blood
✔✔What muscles contract during inspiration? - ✔✔diaphragm, external intercostals,
sternocleido mastoid & scalene
✔✔What muscles contract during expiration? - ✔✔internal intercostals and abdominal
muscles
✔✔When blood enters the pulmonary capillaries, _________ enters the alveoli &
__________ enters the bloodstream - ✔✔CO2
O2
✔✔When blood arrives at the tissue, ________ enters the bloodstream & ___________
enters the tissues. - ✔✔CO2
O2
✔✔The trachea has a mucousal epithelium that is made up of - ✔✔Psuedostratified
ciliated columnar epithelium
✔✔What cartilage is found in the trachea? - ✔✔hyaline cartilage
✔✔Esophagus - ✔✔Tube connecting the mouth to the stomach
ANSWERS SURE A+
✔✔Ossicles - ✔✔malleus, incus, stapes. Vibrate in the inner ear in response to
tympanic membrane
✔✔Blind spot - ✔✔where the optic nerve meets the retina
✔✔Arteries - ✔✔carry oxygenated blood away from the heart
✔✔Veins - ✔✔carry blood to the heart
✔✔The right side of the heart pumps blood to - ✔✔The lungs
✔✔The left side of the heart pumps blood to - ✔✔The rest of the body
✔✔What is the valve between the right atrium f right ventricle? - ✔✔tricuspid valve
✔✔What is the valve between the left atrium & left ventricle? - ✔✔bicuspid/mitral valve
✔✔The valve found between the atria & ventricles are known as - ✔✔Atrioventricular
valves (AV)
, ✔✔What are the names for the semilunar valves? - ✔✔Pulmonary & aortic semilunar
valve
✔✔Gas & nutrient exchange happen in vessels known as - ✔✔Capillaries
✔✔Contraction in the heart is initiated by autorhythmic cells in the - ✔✔Sinoatrial (SA)
node
✔✔When cardiac muscles contract it is in - ✔✔Systole
✔✔When cardiac muscles relax it is in - ✔✔Diastole
✔✔Most oxygen is transported in the blood bound to - ✔✔hemoglobin
✔✔fragments of cells that help blood clot - ✔✔platelets
✔✔Immune cells that function outside of the bloodstream - ✔✔Leukocytes (WBC)
✔✔External respiration - ✔✔gas exchange between lungs and blood
✔✔Internal respiration - ✔✔Exchange of gases between cells of the body and the blood
✔✔What muscles contract during inspiration? - ✔✔diaphragm, external intercostals,
sternocleido mastoid & scalene
✔✔What muscles contract during expiration? - ✔✔internal intercostals and abdominal
muscles
✔✔When blood enters the pulmonary capillaries, _________ enters the alveoli &
__________ enters the bloodstream - ✔✔CO2
O2
✔✔When blood arrives at the tissue, ________ enters the bloodstream & ___________
enters the tissues. - ✔✔CO2
O2
✔✔The trachea has a mucousal epithelium that is made up of - ✔✔Psuedostratified
ciliated columnar epithelium
✔✔What cartilage is found in the trachea? - ✔✔hyaline cartilage
✔✔Esophagus - ✔✔Tube connecting the mouth to the stomach
