Test your basic knowledge |

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. BMI of 30 or greater






2. Heat transfers from warmer objects to cooler ones via infrared radiation (radiation absorbed or emitted)






3. 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)






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






5. BMI of 30 or greater






6. Humans do this through clothing






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






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






9. Time (duration gene active) eg dolphin flipper






10. Glucose-used to syntheisize ATP (and triglycerides) - galactose - and fructose






11. Reuglated rise in body temp caused by a rise in the hypothalamic set point for metabloic heat production (fights pathogrens - and increased production of white blood cells)






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






13. Populations do






14. Development of offspring from unfertilized eggs






15. Amount of fuel used during a given time to power all of its metabolic requirement - = MR - sometimes appears as heat






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






17. Two or more homologous genes found in different species






18. Species change over time - divergent species share a common ancestor - change is produced by natural selection






19. Different form of a gene






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






21. Secrete penicillin - toxins - K+ and H+






22. Found in many animals and prevents cancer - an ortholog






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






24. The Origin of Species 1859

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


25. MR= K(Tb-Ta) K is the slope of thermal conductancce - how readily the animal loses heat






26. Too large to diffuse across plasma membrane so they are digested into monoglycerides and fatty acids - diffused through epithelial cells - re-synthesized into triglycerides - packaged into chylomicrons for lymph & blood transport






27. Inherited but no use (whale pelvis)






28. Some animals move around to increase decrease temperature (pray themselves with water/dust - find shade - put on clothing)






29. Harmful mutation






30. Maintenance of stable conditions within the internal environment (temperature - PH level - ion concentrations - 02 levels - co2 levels - fuel molecules ie glucose)






31. Location (pelvis in fish)-- Where gene effects - BMP4 causing webs to apoptosis






32. Heat in must equal heat out - or body temperature changes (metabolism + Rabs= Rout+convection - conduction and evaporation)






33. In medulla - run parrallel to loops of Henlue and medullary collecting ducts - minimize excessive loss of solutes via diffusion






34. Species change over time - divergent species share a common ancestor - change is produced by natural selection






35. One loci






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






37. Humans do this through clothing






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






39. Amount of fuel used during a given time to power all of its metabolic requirement - = MR - sometimes appears as heat






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






41. Two or more homologous genes found in different species






42. Cells or organisms having two sets of chromosomes






43. What organisms look like and how they behave






44. 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






45. 1. Filtration 2. Reaborption 3. Secretion (Kidney can perform well with only 10% of nephrons functioning)






46. Environments where species can survive within their geographic range






47. Allele and genotype frequencies






48. Main excretory organ of vertebrates: 1. specialized tubules of epithelial cell - 2. salt and water homeostasis - 3. Nitrogeneous waste elimination 4.Renal cortex= filtration - renal medulla = filtration concentrated 5. milions of nephrons






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






50. Releases fatty acids to diffuse into cells of the body - some used during absorptive phase for energy