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






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






4. Sorting and shipping of molecules






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






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






7. Photosynthesis and storage






8. 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






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






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






11. Haploid - produces gametes through mitosis






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






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






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






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






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






17. Addition of H2O to break apart polymer






18. Diploid - produces spores through meiosis






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






20. Synthesize proteins based on mRNA code






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






22. Outer layer - barrier to animals and pathogens






23. Part of leaf for photosynthesis






24. 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






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






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






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






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






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






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






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






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






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






34. Through cells






35. Command center






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






37. Convert light energy to chemical energy






38. Proteins - lipids - carbohydrates - and nucleic acid






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






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






41. Makes dermal tissue for bark






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






43. Mycorrhizas and the bubble shaped guys






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






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






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






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






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






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






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