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. Have a cell wall - no membrane - and no nucleus






2. Lives in desert - leaves have waxy cuticle - succulent - holds onto water






3. In what portion of a root might you find 'root hairs'?






4. What are beneficial products made from bacteria?






5. What are harmful effects of bacteria?






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






7. What causes diffusion of gases to occur?






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






9. The ocular lens of a microscope is 10x - and the objective lens is 4x. What is the total magnification of the microscope?






10. Differences in type and location of human-managed ecosystems - quantity and quality of available drinking water and air may also be affected by rising levels of atmospheric carbon dioxide






11. Lives in desert - leaves have waxy cuticle - succulent - holds onto water






12. During which phase of meiosis do daughter cells become haploid?






13. What is the role of endosperm?






14. Change in gene frequency in a gene population over time.






15. During which phase of mitosis does the nuclear envelope disappear?






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






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






18. 'Alleles' are best described as...






19. Traits that are desirable can be selected and bred for. process of selectively mating and breeding plants with particular traits.






20. Which substances pass through the open stomata of a leaf?






21. Traits that are desirable can be selected and bred for. process of selectively mating and breeding plants with particular traits.






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






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






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






25. Change in gene frequency in a gene population over time.






26. Which class of organic macromolecule stores the greatest amount of potential energy?






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






28. What plant tissue functions in conducting water from the roots to the leaves?






29. What process involves the movement of water across a semi-permeable membrane?






30. What is NOT a function of the vacuole?






31. During which phase of meiosis do daughter cells become haploid?






32. During which phase of mitosis does the nuclear envelope disappear?






33. What pigment absorbs energy and can emit an electron in photosynthesis?






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






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






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






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






38. Southern US - prop roots hold it in place as water moves out - it can breathe under water.






39. What is NOT a product of the krebs cycle?






40. What are adenine - guanine - thymine - cytosine?






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






42. 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.






43. An ecosystem with similar climatic conditions on earth - such as communities of plants - animals - and soil organisms






44. In double fertilization - one sperm cell fertilized an egg cell - What does the other sperm cell fertilize?






45. An ecosystem with similar climatic conditions on earth - such as communities of plants - animals - and soil organisms






46. What organelle contains DNA?






47. Under what circumstance would sexual reproduction be more successful than asexual reproduction?






48. Have a cell wall - no membrane - and no nucleus






49. A tissue in Which mitosis takes place - giving rise to the secondary xylem.






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