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. The part of the leaf for protection and gas exchange






2. Produces secondary vascular tissue






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






4. 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






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






6. Removal of H2O to link monomer and polymers






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






8. Addition of H2O to break apart polymer






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






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






11. Provides flexible support - like in celery






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






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






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






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






16. Special leaves that act as arms that pull up or support the stem






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






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






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






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






21. ***lets them be sexual?






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






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






24. CO2 - H2O - NADH - (ATP)






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






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






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






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






29. Glycolysis - krebs cycle - electron transport chain






30. Sorting and shipping of molecules






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






32. Part of leaf for photosynthesis






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






34. Increase population fitness in unstable environments






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






36. Photosynthesis and storage






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






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






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






40. Attached directly by the base






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






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






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






44. Convert carbs into ATP






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






46. Through cells






47. The atmosphere is 21% oxygen - so that inherently means that over time plants have taken in more CO2 than they produce. this must be the case - otherwise we would all be dead.

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48. Diploid - produces spores through meiosis






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






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