BIOS 255 Comprehensive Exams Questions and Answers

BIOS 255 Comprehensive Exams Questions and Answers Cation A positively charged ion primary active transport mechanism of active transport Meiosis type of cell division takes place in the sex cells to produce sperm Collagen type of fiber in extracellular matrix provides tensile strength hypertonic cause red blood cells to shrivel Stratum basale epidermis contains melanocytes on which layer eccrine sweat glands produce a thin watery sweat that regulates the body temp Femur Long bone Osteoblasts build bone metaphysis bone region contains growth plates responsible for lengthening bones during childbirth and adolescents scapula and clavicle Appendicular skeleton ball and socket joint joint type of shoulder and hip Endomysium layer of connective tissue that encloses individual muscle fibers Troponin protein in the sarcomere that binds calcium to initiate muscle contraction stress, exercise, taking a test identify stage of sympathic nervous system is activated cones recptors in retina responsible for color vision and function best in bright light conditions sclera white parts of the eye Epinephrine hormone is produced in fight or flight Occipital lobe part of brain primarily responsible for vision Optic nerve is 2 not 3 Which cranial nerve does not match with the number Afferent (away) sensory nerve carries information from the body to the CNS Insulin which hormone is produced by the pancreas Pia mater what layer directly covers the brain and spinal cord isometric contraction muscle contraction occurs when muscle generates force but does not change length (ex. pushing against a desk) acetylcholine neurotransmitter is released at the neuromuscular junction to indicate muscle contraction parasympathetic nervous system vagus nerve forms part of the oxytocin stimulates contractions during child birth hormone correctly matched to its function synthesis combining smaller molecules together to create larger molecules proteins which macromolecule has primary, secondary, tertiary, and quaternary structure? Depolarization During which phase does the membrane potential become more positive mechanically gated channels type of gated channel responds to pressure and stretch? sarcoplasmic reticulum Site of calcium storage in muscle cells semimembranosus, semitendinosus, biceps femoris Hamstring muscles include AB+ What is the universal blood recipient? mitral (bicuspid) valve Blood from the Left Atrium must pass through which valve? Neutrophils Which type of leukocyte are the first to respond to infection? colloid osmotic pressure Which type of pressure draws fluid from interstitial space into capillaries? systolic pressure - diastolic pressure Calculate pulse pressure external respiration Which process describes the exchange of gases between alveoli and blood? Type 2 alveolar cells Which type of alveolar cells secrete pulmonary surfactant? medulla oblongata Which part of the brain sends signals to the diaphragm during a normal breath? Hemorrhagic anemia Results from excessive red blood cell loss tunica media Which blood vessel layer controls vasocontriction?