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






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






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






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






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






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






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






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






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






11. Produces secondary vascular tissue






12. 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






13. Provides flexible support - like in celery






14. Large compound formed from combinations of many monomers






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






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






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






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






19. 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






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






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






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






23. Made of acetyl groups - structure energy and storage






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






25. Part of leaf for photosynthesis






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






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. CO2 - H2O - NADH - (ATP)






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






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






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






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






34. Diploid - produces spores through meiosis






35. A thin membrane around the cytoplasm of a cell - gatekeeper of the cell






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






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






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






39. Attached directly by the base






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






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






42. Glycolysis - krebs cycle - electron transport chain






43. Addition of H2O to break apart polymer






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






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






46. Convert carbs into ATP






47. Waxy protection of leaf to protect from pathogens and let water run off it






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






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






50. 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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