Biol 221 - Study guides, Class notes & Summaries

BIOL 2213 (CHAPTER 10-16) EXAM 2 PART A ANATOMY and PHYSIOLOGY BATON ROGUE COMMUNITY COLLEGE (70 QUESTIONS AND ANSWERS) 100% VERIFIED.

BIOL 221 Davenport University -BIOL211: Microbiology - Exam 3 Microbiology Chapters 12 (after slide 31), 13, 14, 15, 18 Questions With Complete Solutions

BIOL 221 MT 3 Questions With Complete Solutions

BIOL 2213 Exam 1 Latest Update Graded A+ homeostasis state of maintaining dynamic stability in the internal environment set point optimal value at which a variable operates dynamic constancy process of reversing a deviation back to the set point negative feedback loop mechanism that reverses deviations from the set point negative feedback loop pathway includes sensors, integrating center, and effector positive feedback loop mechanism that amplifies changes within a sys...

Single-celled photosynthetic organisms with nuclei and without cell walls are... A. Cyanobacteria B. Purple Sulfur Bacteria C. Algae D. Plants E. Fung - ️️Algae Which of the following statements about viruses is true? A. They have an active chemical metabolism. B. Viruses that infect bacteria cannot infect humans. C. They have only RNA, no protein. D. They cannot infect bacteria. E. They are usually surrounded by a lipid envelope. - ️️Viruses that infect bacteria cannot infec...

A 38-year-old intravenous drug user presented at a clinic with a swollen, tender abdomen. The sclera of his eyes were yellow (icteric), and his skin had a faint yellow coloration. A direct fluorescent antibody test was positive for a particular infectious agent. What is unusual about this agent? - ️️it is a DNA virus that needs reverse transcriptase to replicate Which of the following is a major virulence factor in Helicobacter pylori? - ️️the enzyme urease What is the most effect...

BIOL 221 Exam 3; Questions with Solutions

-70 mV - the resting membrane potential in most cells is approximately -70 mV - the resting membrane potential of the cell -70 mV - what is the value for the resting membrane potential for most neurons? -90 mV - the membrane charge value when there is no net movement of K+ into or out of the cell 1. blood glucose becomes high 2. pancreas releases insulin 3. insulin binds to receptors on target cells 4. cells take in glucose 5. blood glucose returns to normal - order of events in the body...

BIOL 221 Exam 3 MC Questions & Answers Which of the following is associated with antigen presentation by phagocytes, but not by epithelial cells? - ANS-MHC2 picks up an antigen from the phagolysosome Which of the following is NOT common to all three complement activation pathways? - ANS-The adaptive immune response is needed for activation of the pathway Bacteria respond to phagocytosis by... - ANS-producing leukocidins MHC Class II receptors... - ANS-Are found only on phagocytes and B-c...

symplesiomorphyshared ancestral trait - trait present in ingroup and outgroup autapomorphyderived trait found only in one taxon - makes species unique ex. retractable claws in cat homoplasystates that are present in more than one taxon and arose independently more than once homologycharacter states that are present in more than one taxon and arose once in common ancestor what are fossilstrace of past life thats fossilized through a slow process of mineralization. rare but numerous ...

_____ is not striated - smooth muscle ______ results as calcium is pumped into the s. reticulum when an AP stops - relaxation _______ shorten during contraction as thin filaments on sides of sarcomeres pulled toward middle - H bands __________ occurs at same time as QRS complex so it typically doesnt register - atrial repolarization 2 sources of cystolic calcium that initiate smooth muscle contraction - sarcoplasmic reticulum, extracellular calcium 3 main functions of cardiovascular syst...