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 amino acids - structure (ex. cytoskeleton) - produce enzymes






2. Proteins - lipids - carbohydrates - and nucleic acid






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






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






5. Outer layer - barrier to animals and pathogens






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






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






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






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






10. Cell walls of cellulose - photosynthesis - indeterminate growth - asexual and sexual reproduction






11. Increase population fitness in unstable environments






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






13. Between cells






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






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






16. Synthesize proteins based on mRNA code






17. Haploid - produces gametes through mitosis






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






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






20. 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






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






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






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






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






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






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






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






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






29. Part of leaf for photosynthesis






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






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






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






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






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






35. Large compound formed from combinations of many monomers






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






37. Diploid - produces spores through meiosis






38. Organic molecules (materials) - enzymes (workers) - DNA (blueprint)






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






40. Convert carbs into ATP






41. Photosynthesis and storage






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






43. Convert light energy to chemical energy






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






46. Attach themselves to other plants and suck nutrients out of the air (fog - humidity)






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






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






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






50. ***lets them be sexual?