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






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






3. Glycolysis - krebs cycle - electron transport chain






4. ***lets them be sexual?






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






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






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






8. Brings leaf water and nutrients - exports sugars






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






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






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






12. Part of leaf for photosynthesis






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






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






15. Mycorrhizas and the bubble shaped guys






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






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






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






19. CO2 - H2O - NADH - (ATP)






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






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






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






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






24. Diploid - produces spores through meiosis






25. Large compound formed from combinations of many monomers






26. Through cells






27. Haploid - produces gametes through mitosis






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






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






30. Command center






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






32. Attached directly by the base






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






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






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






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






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






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






39. Lengthen roots and stem - produce xylem and phloem - ground tissue - and epidermis






40. Between cells






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






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






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






44. Sorting and shipping of molecules






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






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






47. Makes dermal tissue for bark






48. Convert carbs into ATP






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






50. 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