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






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






3. Part of calvin cycle where ATP and NADH are turned into G3P (sugar)






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






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






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






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






8. Made of acetyl groups - structure energy and storage






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






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






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






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






13. Convert light energy to chemical energy






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






15. Increase population fitness in unstable environments






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






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






18. The part of the leaf for protection and gas exchange






19. Haploid - produces gametes through mitosis






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






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






22. Produces megagametophyte that stays with sporophyte plant (produces egg)






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






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






25. Mycorrhizas and the bubble shaped guys






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






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






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






29. Special pointy leaves made to protect the stem






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






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






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






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






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






35. Synthesize proteins based on mRNA code






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






37. Produces secondary vascular tissue






38. Outer layer - barrier to animals and pathogens






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






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






41. Brings leaf water and nutrients - exports sugars






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






43. Part of leaf for photosynthesis






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






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






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






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






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






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






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