Test your basic knowledge |

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Organic compounds not directly involved in normal growth of organism. Facilitates reproduction and defense against predators.






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






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






4. Removal of H2O to link monomer and polymers






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






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






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






8. Provides flexible support - like in celery






9. Increase population fitness in unstable environments






10. Addition of H2O to break apart polymer






11. 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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12. CO2 - H2O - NADH - (ATP)






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






14. Allows plants to combat sessileness and control growth and allocate resources effectively to best compete/survive in their environment via meristems






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






16. Makes dermal tissue for bark






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






18. Convert carbs into ATP






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






20. Photosynthesis and storage






21. Between cells






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






23. Synthesize proteins based on mRNA code






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






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






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






27. Convert light energy to chemical energy






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






29. Brings leaf water and nutrients - exports sugars






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






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






32. Glycolysis - krebs cycle - electron transport chain






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






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






35. Haploid - produces gametes through mitosis






36. Command center






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






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






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






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






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






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






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






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. Part of leaf for photosynthesis






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






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






48. Large compound formed from combinations of many monomers






49. Proteins - lipids - carbohydrates - and nucleic acid






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