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






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






3. Outer layer - barrier to animals and pathogens






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






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






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






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






8. Part of calvin cycle where ATP and NADH are turned into G3P (sugar)






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






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






11. Produces secondary vascular tissue






12. Increase population fitness in unstable environments






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






14. Made of monosaccharides - building blocks of life - sugars






15. Photosynthesis and storage






16. Convert light energy to chemical energy






17. Proteins - lipids - carbohydrates - and nucleic acid






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






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






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






21. Synthesize proteins based on mRNA code






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






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






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






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






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






27. CO2 - H2O - NADH - (ATP)






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






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






30. 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






31. Attached directly by the base






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






33. Sorting and shipping of molecules






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






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






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






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






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






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






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






41. 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






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






43. 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






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






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






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






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






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






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






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