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






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






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






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






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






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






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






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






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






10. Convert light energy to chemical energy






11. Command center






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






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






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






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






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






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






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






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






20. Sorting and shipping of molecules






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






22. Addition of H2O to break apart polymer






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






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






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






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






27. Through cells






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






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






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






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






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






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






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






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






36. Made of acetyl groups - structure energy and storage






37. Special pointy leaves made to protect the stem






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






39. Have underground stems that store starch (ex. potato)






40. Haploid - produces gametes through mitosis






41. Photosynthesis and storage






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






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






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






45. Makes dermal tissue for bark






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






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






48. 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.


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






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