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






3. Through cells






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






5. Proteins - lipids - carbohydrates - and nucleic acid






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






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






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






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






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






11. Diploid - produces spores through meiosis






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






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






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






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






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






17. 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.


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






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






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






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






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






24. Synthesize proteins based on mRNA code






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






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






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






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






29. Made of acetyl groups - structure energy and storage






30. Produces secondary vascular tissue






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






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






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






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






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






36. Addition of H2O to break apart polymer






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






38. Increase population fitness in unstable environments






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






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






41. Removal of H2O to link monomer and polymers






42. Part of leaf for photosynthesis






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






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






45. Brings leaf water and nutrients - exports sugars






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






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






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






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






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