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Bio 101: Harvard

Subjects : science, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Change in a single nucleotide in a DnA sequence






2. Product of protein and nucleic acid degradation: 1. Ammonia (NH3) - 2. Urea (lose lots of water)-humans are ureotelic - 3. Uric acid (lose little water)






3. Asexual 1. Doesn't need a mate 2. Maintains adaptive genes 3. All kids asexual (able to reproduce) V.S. Sexual 1. Repairs damaged DNA 2. Elimination of deleterious mutations (asexual makes exact copies) 3. Greater genetic variation (genetic combinati






4. Glycogen hodrolysis in liver






5. Environments where species can survive within their geographic range






6. When a few pioneers colonize a new region - they possess fewer alleles than their source population creating a bottleneck effect






7. Inherited but no use (whale pelvis)






8. Tissues other than skeletal muscles produce metabolic heat by uncoulping oxidative phosphorylation (burn fuel without producing ATP)






9. Native to one location and no where else






10. Outcrops of species due to suitable habitats separated by areas of unsuitable habitat






11. Development of offspring from unfertilized eggs






12. Q10= Rt/Rt-10 (rate of process or reaction - and rate at 10 degreed celcius lower)-- If not sensititve - Q10 is usually 1 - generally between 2 and 3






13. Actively regulate osmolarity of their extracellular fluid (300 Mosm/L)






14. Asexual 1. Doesn't need a mate 2. Maintains adaptive genes 3. All kids asexual (able to reproduce) V.S. Sexual 1. Repairs damaged DNA 2. Elimination of deleterious mutations (asexual makes exact copies) 3. Greater genetic variation (genetic combinati






15. Copies of genes that are no longer functional






16. Bicarbonate ions (Co2+H2O= h2Co3= H+ + HCO3-) Co2 removed by lungs - H+ removed by urine






17. What organisms look like and how they behave






18. Heat transfer when two objects come into direct contact (icepack on sprained ankle)






19. Amplifies deviation frokm set point






20. Changes at the DNA - RNA and protein scale






21. Fluctuating temperatures






22. Shifts mean towards one extreme (positive selection) ie long horned cows






23. Favors the mean - selection against any deleterious mutations (baby size)






24. Extracellular fluid - including blood/plasma (Allow cells to take in nutrients and remove waste)






25. Creates new genes by inserting exons and flanking introns into a different gene sequence - there by introducing a new domain in the gene product






26. Made by pancreas - binds to cell surface receptor and stimulates singaling pathway - faciliates glucose diffusion into cell (secretion rises when blood glucose rises - eating - or parasympathetic stimulation ie negative feedback)






27. Change salt water balance: 1. respiration - 2. metabolism - 3. waste elimination - 4. food ingestion 5. body temperature regulation






28. Proportion of genotype in population






29. Refers to all the bodily activities and chemical reactions in an organism that maintain life






30. Hot fish have arteries closer to muscle to warm blood (countercurrent heat exchanger)- allows them to swim faster - catch prey






31. Development of offspring from unfertilized eggs






32. Deleterious mutations in a non-recombining genome accumulate at each replication (asexual reproductivity)

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33. Creates new genes by inserting exons and flanking introns into a different gene sequence - there by introducing a new domain in the gene product






34. 1. Regulate volume of fluid in body 2. regulate osmolarity - 3. Maintain Ca2+ - H+ - NA+ (ionic regulation) 4. eliminate nitrogenous wastes produced by protein and nucleic acid catabolism (URINE)






35. Heat transfers to a surrounding medium ie air or water via surface






36. Change in relative frequency of the genotype from one generation to the next






37. Populations do






38. Sum of all alleles






39. Environments where species can survive within their geographic range






40. Product of protein and nucleic acid degradation: 1. Ammonia (NH3) - 2. Urea (lose lots of water)-humans are ureotelic - 3. Uric acid (lose little water)






41. Any change in the nucleotide sequences of an organism's DNA (deleterious - neutral - beneficial)






42. MR is at minimal level combatible with all physiological functionsfor homestastis (BMR level)






43. Thermostat of the brain (when cooled - constricts blood vessels in skin and increases metabolic heat production= body temp increases)






44. Trait with true indicator of ability to survive in local environment ie bull frogs lifespan can be determined by its size which determines how low it's voice is






45. Occurs when GI tract is empty of nutrients so body's stores are used






46. Total number of individuals in a population






47. Minerals that carry electrical charges that help maintain the body's fluid balance - imbalance can alter membrane potentials/disrupt cell activities






48. (GLUTS) move to surface - inhibit glycogenolysis and gluconeogensis






49. Functional unit of kidney - millions per - renal corpuscle forms filtrate - tubule performs secretion and reabsorption






50. Daily decline of body temp to save energy (bouts of torpor last mustiple days in hibernation)







Sorry!:) No result found.

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