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PCAT Biology Vascular Systems In Animals And Plants

Subjects : pcat, biology
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. Two upper chambers of the heart -thin walled






2. Converge into venules and eventually into veins - leading deoxygenated blood back toward the heart






3. Where exchange occurs in arthropods






4. A small mass of specialized tissue located in the wall of the right atrium regulates/originates an ordinary cardiac contraction -spreads impulses through both atria - stimulating them to contract simultaneously






5. Leukocytes involved in immune response and the production of antibodies (B cells) or cytolysis of infected cells (T cells)






6. Serve protective functions -aka WBC






7. Physical barier against bacterial invasion






8. Branches into a series of arteries






9. Tissue involved in storage of nutrients and plant support






10. Cardiac muscle contracts rhythmically without stimulation from the nervous system - producing impulses that spread through its internal conducting system






11. Located at the tips of roots and stems where division leads to increase in length






12. Run up and down the stem at the center and contains xylem - phloem - and cambium cells






13. Valve on the right side of the heart has three cusps






14. Secondary circulatory system distinct from the cardiovascular circulation - =vessels transport lymph to the cardiovascular system - thereby keeping fluid levels in the body constant






15. Coat the damaged area and trap blood cells to form a clot






16. Engulf and detroy foreign particles






17. Phloem - cambium - and xylem layers






18. Another antigen that may be present on the surface of red blood cells






19. Involves the production of antibodies and cell-mediated immunity






20. Responsible for the proliferationof antibodies after exposure to antigens






21. Responsible for generating the force that propels systematic circulation and pumps against a higher resistance






22. As water evaporates from the leaves of plants - a vacuum is created pulls water up the stem






23. Involves the transfer of antibodies produced by another individual or organism -acquired either passively or by injection






24. Water entering the root hairs exerts a pressure that pushes water up the stem






25. Pumps deoxygenated blood into pulmonary circulation (toward the lungs)






26. Functions as the main heart by coordinated contractions in annelids






27. Secrete sweat - which contains an enzyme that attacks bacterial cell walls






28. Blood is confined to blood vessel






29. Composed of muscular - four-chambered heart - a network of blood vessels - and the blood itself






30. Systole and diastole - which together make a heartbeat






31. Specialized of the root epidermis with thin-walled projections increase the surface area for absorption of water and minerals from the soil






32. Produced by cells under viral attack and diffuse to other cells - where they help prevent the spread of the virus






33. Include arteries - veins - and capilleries






34. Two layers thick and are the actively dividing - undifferentiated cells that give rise to xylem and phloem cell layers; as they divide - the cells near the phloem differentiate into phloem cells - and the cells near the xylem differentiate into xylem






35. Carries impuls of AV node which branches into the right and left bundle branches - and through the Purkinje fibers in the walls of ventircles - generating a strong contraction






36. Located between the atria and ventricles on both sides of the heart - prevent backflow of blood into the atria






37. Cell fragments that lack nuclei and are involved in clot formation -involved in injury repair






38. Composed of nonspecific and specific defense mechanisms






39. Skin - mucous-coated epithelia - macrophages - inflammatory - interferons






40. An individual is injected witha weakened - inactive - or related form of a particular antigen - which stimulates the immune system to produce specific antibodies against it






41. Leukocytes that migrate from the blood to tissue - where they mature into stationary cells






42. Cells that are thick walled - often hollow cells located on the inside of the vascular bundle that carry water and minerals up the plant - and their thick walls give the plant its rigid support






43. In annelids - five pairs of vessels that connect the dorsal vessel to the ventral vessel and function as additional pumps






44. Universal recipient as it has neither anti-A nor anti-B antibodies






45. Prevent extensive blood loss while the damaged vessel heals itself






46. Thin walled cells on the outside of the vascular bundle that transport nutrients down the stem -are living and include sieve tube cells and companion cells






47. Carry oxygenated blood from the lungs to the heart






48. Primary organ of transport in the plant






49. The period of cardiac muscle relaxation during which blood drains into all four chambers






50. AKA immunoglobulins (Igs) -defense mechanism that are complex proteins that recognize and bind to specific antigens and trigger the immune system to remove them -either attract other cells to phagocytize the antigen or cause the antigens to clump tog