Biol 473 - Study guides, Class notes & Summaries

BIOL 473 Final Exam Study Questions And Answers 2024 Solutions Glacial Scour Lakes the actual lake itself is created by corrosion (like an ice cream scoop). Activity of glacier was to scour out lake basins (acting as bulldozers) Moraine lake (glacial) Glacier moved forward and back and forth and left a dam of gravel and scoured out valley glacial (kettle) lakes Piece of a glacier that melts off while its bulldozing and these massive "ice cubes" are buried

BIOL 473 Exam 2 Questions And Answers Graded A+ pH formula pH=-log[H+] Buffering Capacity the ability of a substance to resist changes in pH when acids like CO2 are added Sources of CO2 Atmosphere, respiration, solution of mineral carbonates CO2 is lost from solution by Diffusion into the atmosphere, uptake during photosynthesis Photic Zone Where there is enough light to fuel photosynthesis

BIOL 473 Exam 2 Respiratory Questions And Answers With Real Tests What is the respiratory tract divided into? upper and lower tracts What is the upper res tract? nose Nasal cavities Sinuses Pharynx And part of larynx What is lower res tract? larynx Trachea Bronchi Bronchioles Alveolar ducts

BIOL 473 Exam 1 Questions And Answers Verified Study Solutions trp attenuation high trp -ribosome translates unhindered -ribosome blocks RNA polymerase from transcribing sequence 2 -3 and 4 form the attenuator structure, stopping the ribosome from translating and kicks the RNA polymerase off (stops transcription) -terminator structure is more stable due to more H bonds trp attenuation low trp -ribosome stalls at the trp codons in the leader sequence and produces an incomplete leader seque...

Biol 473 Theory Exam 2 Complete Study Solutions With Real Tests Primary pathology problem with secretion in target gland Secondary pathology problem with secretion of trophic hormone Hypothalamic pituitary gonad axis pathway hypothalamus releases gnrh Gnrh signals pituitary gland to release lh and fsh (inhibits gnrh) Lh targets gamete production(females) Lh targets endocrine cells that release steroid and peptide hormones Fsh targets gamete production

BIOL 473 Final UNIT 1verified Questions And Answers Rated A+ Is parthenogenesis an option in mammals? To date, no What is sex determination? - male or female - appropriate gonad is formed accordingly What is sexual differentiation? - sexual phenotype - hormone-induced differentiation on non-gonadal tissue (e.g. the ducts, etc) Chromosome size and number are not indicative of... the genome size (e.g. Indian muntjac 2n = 6)

What does the HPG axis regulate? Spermatogenesis, oogenesis, ovulation, preparation of the uterus for implantation Hypothalamus related to HPG axis Releases GnRH GnRH related to HPG axis Stimulates anterior pituitary gland to release FSH and LH Follicle Combination of different cells that surround and support the oocyte Produce and secrete estrogen FSH and LH Stimulate ovulation and production of estrogen by developing follicles FSH: stimulates development of supportive cells of follicle...

BIOL 473 Final Exercise Physiology Questions And Answers Rated A+

Functional Responserelationship between prey density and the feeding rate of a predator Sediment microzonezone of oxygenated sediments around the roots of macrophytes hyporheic zonesubsurface habitat of streams/rivers where ground water mixes with surface water Cyclomorphosisphenomenon seen in zooplankton where their morphology changes in response to predation pressure/presence. tephraobvious band found in sediments produced by volcanic ash Riparian habitathabitat forming the boundary...

What is the driving force that causes gasses (oxygen and carbon dioxide) to cross membranes associated with the pulmonary and system circuits. a) active transport b) diffusion c) hydrostatic pressureb) diffusion The oxygen concentration in the venous blood of the systemic circuit is close to 0. T/Ffalse Which of the following is most affected by aspirating a liquid? a) the perfusion (amount of blood flowing to) of the alveoli b) the amount of oxygen reaching the alveoli c) the amount ...