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. Special pointy leaves made to protect the stem






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






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






4. Through cells






5. Diploid - produces spores through meiosis






6. Attached directly by the base






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






8. Glycolysis - krebs cycle - electron transport chain






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






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






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






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






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






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






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






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






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






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






19. CO2 - H2O - NADH - (ATP)






20. Mycorrhizas and the bubble shaped guys






21. Outer layer - barrier to animals and pathogens






22. 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






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






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






25. Haploid - produces gametes through mitosis






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






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






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






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






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






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






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






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






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






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






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






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






38. Provides flexible support - like in celery






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






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






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






42. Addition of H2O to break apart polymer






43. 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






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






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






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






47. Convert light energy to chemical energy






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






49. Made of acetyl groups - structure energy and storage






50. Produces secondary vascular tissue