Test your basic knowledge |

Subject : science
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 root structure entirely - make little bubble roots to help acquire nitrogen and phosphorous in exchange for sugars






2. Organic molecules (materials) - enzymes (workers) - DNA (blueprint)






3. Stick straight up and act like straws in swamp and mangrove plants






4. Mycorrhizas and the bubble shaped guys






5. Made of monosaccharides - building blocks of life - sugars






6. Outer layer - barrier to animals and pathogens






7. Produces bisexual spores - they become gametophytes w/ egg and sperm (study the picture)






8. CO2 (exhale) + H20 + ATP (energy) ? CH20 (food) + 02 (air)






9. CO2 - H2O - NADH - (ATP)






10. General purpose cell. thin primary cell wall. most common






11. 1. Prokaryotes are approximately the same size as their organelle counterparts. 2. Double membrane 3. Chloroplasts and mitochondria have their own unique circular DNA






12. Gather and convert light energy - control CO2 and water loss






13. Root hairs capture water and minerals and move them through (symplasticly) or between (apoplasticly) cells until the endodermis filters it into the vascular tissue






14. Alternate between sporophyte and gametophyte in the plant life cycle






15. Root apical meristem (quiescent center - or zone of cell division) - zone of elongation - zone of maturation






16. Free energy plants get out of the reactant's potential energy






17. Rigid support - mostly found in bark. two types -- fibers and sclereids






18. Web of protein strands throughout the cell that allows organelles and molecules to move via motor proteins






19. Cytoskeleton -- motor proteins carry molecules and organelles across microtubule tracks






20. Addition of H2O to break apart polymer






21. Indeterminate growth - assisted reproduction - protection (chemical deterence - spikes - internal resource transport)






22. Made of acetyl groups - structure energy and storage






23. A series of proteins in which the high-energy electrons from the Krebs cycle are used to convert ADP into ATP by redox reactions






24. Produces secondary vascular tissue






25. Reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugars. 1)reduction - 2)carbon fixation - 3)regeneration






26. Attached directly by the base






27. Position leaves for max photosynthesis - provide resource transportation and storage - escape herbivores






28. Haploid - produces gametes through mitosis






29. CO2 (air) + H20 (soil) + light energy (sun) ? CH20 (carbs) + 02 (oxygen)






30. Produces microgametophyte that stays with sporophyte plant (produces egg)






31. Diploid - produces spores through meiosis






32. Molecule manufacturing where ribosomes are - and then products are sent to the Golgi Apparatus






33. When xylem is blocked by air bubbles as a result of gasses clotting together after freeze-thaw cycles or extreme water-tension






34. Second stage of cellular respiration - in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions






35. Develop bordered pits to prevent spreading of bubbles - tracheids let water move laterally - refill at night - produce new xylem every spring






36. Organic compounds not directly involved in normal growth of organism. Facilitates reproduction and defense against predators.






37. Make long thin stems called 'runners' that grow above ground and aid in asexual reproduction






38. Increase width (girth) of stems and roots - has vascular cambium and cork cambium






39. Removal of H2O to link monomer and polymers






40. The OEC splits water and transfers the electrons to the P680 or cholorphyll reaction center. In the meantime - the photosystem is absorbing light energy and funnels the energy into the p680 - from which - through a series of redox reactions - the kin






41. Part of calvin cycle where ATP and NADH are created






42. Produces megagametophyte that stays with sporophyte plant (produces egg)






43. 1) taking wood from an ecosystem also takes nutrients 2) seedling establishment isn't that easy -- lots of competition and herbivory to overcome in building a new forest






44. Number of ATP molecules from 1 glucose in cellular respiration (total produced -- 38 - total yield -- 36)






45. Free energy in reactants stored in products (carbs)






46. Convert light energy to chemical energy






47. First step in releasing the energy of glucose - in which a molecule of glucose is broken into two molecules of pyruvic acid






48. Sorting and shipping of molecules






49. Spore that gives rise to independent bisexual gametophyte that produces both egg and sperm (mosses and ferns)






50. Special pointy leaves made to protect the stem