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. CO2 - H2O - NADH - (ATP)






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






3. Large compound formed from combinations of many monomers






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






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






6. Outer layer - barrier to animals and pathogens






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






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






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






10. Produces secondary vascular tissue






11. Proteins - lipids - carbohydrates - and nucleic acid






12. Part of leaf for photosynthesis






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






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






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






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






17. Makes dermal tissue for bark






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






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






20. Through cells






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






22. Made of acetyl groups - structure energy and storage






23. Glycolysis - krebs cycle - electron transport chain






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






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






26. 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






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






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






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






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






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






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






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






34. Between cells






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






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






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






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






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






40. ***lets them be sexual?






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






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






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






44. Convert carbs into ATP






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






46. Special pointy leaves made to protect the stem






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






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






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






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