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






2. Glycolysis - krebs cycle - electron transport chain






3. Proteins - lipids - carbohydrates - and nucleic acid






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






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






6. CO2 - H2O - NADH - (ATP)






7. Through cells






8. Photosynthesis and storage






9. Increase population fitness in unstable environments






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






11. Part of calvin cycle where five G3Ps are recycled - processed - and linked to form more materials for carbon fixation






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






13. Haploid - produces gametes through mitosis






14. Special leaves that act as arms that pull up or support the stem






15. Between cells






16. Stores water and waste and ultimately determines the shape of the cell






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






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






19. Practice of employing management strategies to allow healthy return of timber harvest. (ex. leave mature trees - plant seedlings)






20. 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






21. Part of leaf for photosynthesis






22. 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






23. Change root structure entirely - make little bubble roots to help acquire nitrogen and phosphorous in exchange for sugars






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






25. Part of leaf that is loose for easy gas diffusion






26. Waxy protection of leaf to protect from pathogens and let water run off it






27. Xylem and phloem - used for transportation of water and sugars in plant






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






29. Position reactants so they dont require as much activation energy






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






31. Inter-cellular links for long distance transportation of nutrients






32. Penetrate root cortex into vascular tissue - aid in acquiring nitrogen and phosphorous in exchange for sugars






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






34. Anchor the plant - collect water and nutrients from the ground






35. Cell walls of cellulose - photosynthesis - indeterminate growth - asexual and sexual reproduction






36. Biological fuel. captured and stored through photosynthesis - extracted by mitochondria






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






38. Attached directly by the base






39. Outer layer - barrier to animals and pathogens






40. Mycorrhizas and the bubble shaped guys






41. Allows plants to combat sessileness and control growth and allocate resources effectively to best compete/survive in their environment via meristems






42. Convert carbs into ATP






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






44. Attach themselves to other plants and suck nutrients out of the air (fog - humidity)






45. Flower to play the role of the gametophyte - producing two different spore types






46. ***lets them be sexual?






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






48. The atmosphere is 21% oxygen - so that inherently means that over time plants have taken in more CO2 than they produce. this must be the case - otherwise we would all be dead.


49. A chemical reaction involving the transfer of one or more electrons from one reactant to another; also called oxidation-reduction reaction.






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