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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. Leukocytes that phagocytize foreign matter and organisms such as bacteria






2. Innervates the heart via the vagus nerve and causes a decrease in the heart rate






3. Transport deoxygenated blood from the heart to the lungs






4. Smallest diameter of all three types of vessels; red blood cells must often travel through them single file






5. The driving force of the circulatory system






6. Released by injured cells - which causes blood vessels to dilate - thereby increasing blood flow to the damaged region






7. Used to lower the immune response to transplants and decrease the likelihood of rejection






8. Attracted to the injury site phagocytize antigenic material






9. Composed of nonspecific and specific defense mechanisms






10. Outer layer of xylem that is alive






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






12. Have three cusps and are located between the left ventricle and the aorta and between the right ventricle and the pumonary artery (the pulmonic valve)






13. Oxygen carrying components of blood -formed from stem cells in the bone marrow where they lose their nuclei - mitochodnria - and membranous organelles






14. Fluid left after blood clotting






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






16. Serve protective functions -aka WBC






17. 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






18. Involves cells that combat fungal and viral infection






19. Include arteries - veins - and capilleries






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






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






22. Branches into a series of arteries






23. Epidermis (outer-bark) - cortex - phloem - cambium - xylem - and pith






24. 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






25. Carry oxygenated blood from the lungs to the heart






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






27. Primary organ of transport in the plant






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






29. Modifies the rate of heart contraction






30. Engulf and detroy foreign particles






31. Blood is confined to blood vessel






32. Innervates the heart via the cervical and upper thoracic ganglia and causes an increase in the ehart rate






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






34. Physical barier against bacterial invasion






35. Any liquid in a thin tube will rise becaUse of the surface tension of the liquid and interactions between the liquid and the tube






36. Lined in passages - which filter and trap foreign particles






37. When platelets come into contact with the exposed collagen of a damaged vessel - they release a chemical chemical that causes neighboring platelets to adherer to one another






38. Swellins along lyph vessels containing phagocytic cells that filter the lymph - removing and destroying foreign particles and pathogens






39. Phloem - cambium - and xylem layers






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. Have body walls that are two cells thick -all cels are direct contact with either the internal or external environments so there is no need for a specialized circulatory system






42. Tissue involved in storage of nutrients and plant support






43. Initiated by the body in response to physical damage and often accompanied by fever






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






45. Responsible for the proliferationof antibodies after exposure to antigens






46. Supply plant cells with nutrients and remove waste products






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






48. Exerts hormonal control via epinepherine (adrenaline) secretion - which causes an increase in heart rate






49. Responsible for both of these immune mechanisms






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