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. Between cells






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






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






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






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






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






7. Addition of H2O to break apart polymer






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






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






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






11. Command center






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






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






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






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






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






17. Attached directly by the base






18. Brings leaf water and nutrients - exports sugars






19. Lengthen roots and stem - produce xylem and phloem - ground tissue - and epidermis






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






21. Produce vessels year round (ex. northern Arizona aspen)






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






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






24. Produces secondary vascular tissue






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






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






27. 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






28. Consists of dead hollowed out cells - come in tracheids (long) or vessels (short) - move water in plant






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






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






31. Outer layer - barrier to animals and pathogens






32. Diploid - produces spores through meiosis






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






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






35. ***lets them be sexual?






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






37. The part of the leaf for protection and gas exchange






38. Convert carbs into ATP






39. A simple compound whose molecules can join together to form polymers






40. Sorting and shipping of molecules






41. 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.


42. Fuel - paper - construction materials - furniture - latex - resins - syrup






43. Comes in twos - sieve tubes (no nucleus) and companion cells (nourish sieve tubes) - transport sugars and nutrients






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






45. Haploid - produces gametes through mitosis






46. Photosynthesis and storage






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






48. 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






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






50. Mycorrhizas and the bubble shaped guys