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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. What are homologous chromosomes?






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






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






4. What causes diffusion of gases to occur?






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






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






7. Don't have roots or leaves - and are not producers - do not photosynthesize - and have cell walls made out of chitlin.






8. What is a reactant in the photochemical reactions of photosynthesis?






9. 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






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






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






12. What causes diffusion of gases to occur?






13. Vascular and seed bearing






14. 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






15. 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.






16. What are harmful effects of bacteria?






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






18. What is a final product of glycolysis?






19. Which commonly eaten food is an example of a stem?






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






21. 3 part molecule with a sugar - phosphate group - and nitrogenous base - carries genes






22. Seedless - multicellular - and terrestrial - have a vascular system - reproduce by spreading spores that are found on the underside of mature leaves.






23. What best describes a dry fruit which opens at maturity?






24. Epiphytes - valemine breaks down compost in roots






25. What is the primary function of collenchyma cells?






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






27. How do bacteria reproduce?






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






29. What are the major groups of algae?






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






31. Three generations of gymnosperms






32. Heating up bacteria until it is harmless and cannot function.






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






34. 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?






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






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






37. What are harmful effects of bacteria?






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






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






40. During which phase of mitosis do the sister chromatids separate?






41. Vascular and seed bearing






42. Enzymes are an example of what type of molecule?






43. 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.






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






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






46. What are beneficial products made from bacteria?






47. What separates during meiosis-II






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






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






50. What tissue can be found in a root but not in a stem?