Test your basic knowledge |

Botany Test

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. A piece of potato tuber is placed in a concentrated sugar-water solution. what statement BEST describes why the piece of potato shrinks in size over time?






2. What process would be used by a plant to move potassium ions across a membrane AGAINST a concentration gradient?






3. Seeds are not protected by fruit and they do not have flowers - do not have shell around seeds - reproduce by releasing pollen into the air to make available to the ovule in the megaspores - causing fertilization






4. What organelle contains DNA?






5. What structure is MOST important in generating root pressure?






6. Have a nucleus - and a cell membrane






7. Which part of the microscope would be adjusted to sharpen the image of a specimen at high magnification?






8. What phenomena explains how a photon can strike any chlorophyll molecule in the antennal complex and still reach the reaction center?






9. Bugs crawl into 'pitchers' - tiny hairs keep them from getting out - plant breaks down enzymes - and uses nitrogen. lives in places where nitrogen is limited.






10. How many sperm cells does each pollen grain typically carry?






11. What are homologous chromosomes?






12. What organelle contains DNA?






13. How is algae different from 'true' plants?






14. What is a function of the epidermis?






15. During which phase of the cell cycle does DNA replication occur?






16. What is the role of endosperm?






17. What type of RNA has an anticodon?






18. What part of a stem can a tree live without?






19. Where in the chloroplast do protons accumulate - resulting in an electrochemical gradient which drives ATP-synthase?






20. What would be a way of keeping a short-day plant from blooming?






21. What causes diffusion of gases to occur?






22. Individuals best adapted to their environment reproduce offspring. it requires variation - heritability - and selection.






23. Lives in dry - hot/cold - windy places - has fuzzy hairs to distance wind from the leaves






24. What is the main function of the roots of a corn plant?






25. What hormone functions in stomatal closure and can be used to induce dormancy in cultivated plants?






26. What is NOT a function of the vacuole?






27. Where in a plant is the water potential lowest?






28. 3 part molecule with a sugar - phosphate group - and nitrogenous base - carries genes






29. The part of an apple most often eaten by people is receptacle tissue - not ovary - making this what type of fruit?






30. What type of fruit develops from a cluster of many simple flowers?






31. What hormone is most important in the ripening of fruits?






32. What hormone functions in stomatal closure and can be used to induce dormancy in cultivated plants?






33. What pigment is responsible for plants sensing day length?






34. What organelle was observable in the onion epidermis stained with iodine?






35. A gymnosperm - lives in the desert for up to 3000 years - only grows 2 leaves - 5 feet across - they receive 1 inch of lower of rainfall per year - roots can grow under the soil at least a mile.






36. What organelle do guard cells contain that other epidermal cells lack?






37. Info. carrying molecule - single stranded






38. What organelle was observable in the onion epidermis stained with iodine?






39. If an ovule is fertilized - what will it develop into?






40. Composite organisms consisting of a symbiotic organism composed of a fungus with a photosynthetic partner - can be used as a natural fertilizer






41. What are the major groups of algae?






42. 'Alleles' are best described as...






43. What hormone stimulates cell division and may interfere with the function of auxin - leading to the development of 'witches-broom'?






44. You can determine the age of a woody branch by counting these






45. What is a final product of glycolysis?






46. Where in a plant is the water potential lowest?






47. What hormone is most important in the ripening of fruits?






48. What type of RNA has an anticodon?






49. You can determine the age of a woody branch by counting these






50. Individuals best adapted to their environment reproduce offspring. it requires variation - heritability - and selection.