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. 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






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






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






4. Haploid - produces gametes through mitosis






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






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






7. Produces secondary vascular tissue






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






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






10. Mosses have no vascular tissue. Ferns reproduce with spores. Conifers reproduce with seeds. Flowering plants have flowers.






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






12. Mycorrhizas and the bubble shaped guys






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






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






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






16. ***lets them be sexual?






17. 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






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






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






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






21. Through cells






22. Between cells






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






24. Addition of H2O to break apart polymer






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






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






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






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






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






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






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






32. Diploid - produces spores through meiosis






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






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






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






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






37. Removal of H2O to link monomer and polymers






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






39. CO2 - H2O - NADH - (ATP)






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






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






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






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






44. Special pointy leaves made to protect the stem






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






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






49. Synthesize proteins based on mRNA code






50. Convert light energy to chemical energy