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. Produces secondary vascular tissue






2. Addition of H2O to break apart polymer






3. Made of cellulose - structure and inter-cellular transportation of nutrients via plasmodesmata.






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






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






6. ***lets them be sexual?






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






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






9. Large compound formed from combinations of many monomers






10. 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






11. Diploid - produces spores through meiosis






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






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






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






16. Provide oxygen - food - medicine - fuel - shelter - paper products - beauty






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






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






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






20. Outer layer - barrier to animals and pathogens






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






22. Brings leaf water and nutrients - exports sugars






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






24. Sorting and shipping of molecules






25. Increase population fitness in unstable environments






26. Convert carbs into ATP






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






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






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






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






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






32. Made of amino acids - structure (ex. cytoskeleton) - produce enzymes






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






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






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






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






37. Photosynthesis and storage






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






39. A thin membrane around the cytoplasm of a cell - gatekeeper of the cell






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






41. Removal of H2O to link monomer and polymers






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






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






44. CO2 - H2O - NADH - (ATP)






45. 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






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






47. Produce vessels in spring and tracheids in winter (ex. oak tree)






48. Production of two spore types (gymnosperms and angiosperms)






49. 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






50. Synthesize proteins based on mRNA code