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






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






3. Special pointy leaves made to protect the stem






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






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






6. Convert light energy to chemical energy






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






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






9. Removal of H2O to link monomer and polymers






10. Convert carbs into ATP






11. Part of leaf for photosynthesis






12. Increase population fitness in unstable environments






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






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






15. 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






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






17. CO2 - H2O - NADH - (ATP)






18. 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






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






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






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






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






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






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






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






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






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






28. Provides flexible support - like in celery






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






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






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






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






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






34. Sorting and shipping of molecules






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






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






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






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






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






40. Glycolysis - krebs cycle - electron transport chain






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






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






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






44. 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






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






46. Synthesize proteins based on mRNA code






47. Command center






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






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






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