Test your basic knowledge |

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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 megagametophyte that stays with sporophyte plant (produces egg)






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






3. Attached directly by the base






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






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






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






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






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






9. Proteins - lipids - carbohydrates - and nucleic acid






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






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






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






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






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






15. Diploid - produces spores through meiosis






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






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






18. Convert carbs into ATP






19. Between cells






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






21. Photosynthesis and storage






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






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






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






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






26. More effective in stable environments - focus on fast growth without competition






27. Synthesize proteins based on mRNA code






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






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






30. Command center






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






32. Have underground stems that store starch (ex. potato)






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






34. Outer layer - barrier to animals and pathogens






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






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






37. Convert light energy to chemical energy






38. 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






39. 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






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






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






42. Ability crucial to plant structure and processing of energy - allows change to be made to help survival






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






44. Part of leaf for photosynthesis






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






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






47. 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






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






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






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







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