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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. Serve protective functions -aka WBC






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






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






4. Primary organ of transport in the plant






5. Responsible for the proliferationof antibodies after exposure to antigens






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






7. 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






8. Pumps oxygenated blood into systemic circulation (throughout the body)






9. Involves cells that combat fungal and viral infection






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






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






12. Converts fibrinogen (another plasma protein) into fibrin






13. Thick-walled - muscular - elastic vessels that transport oxygenated blood away from the heart






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






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






16. The production of antibodies during an immune response -can be conferred by vaccination






17. 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






18. Severe anemia for the fetus caused by Rh+ fetus






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






20. The driving force of the circulatory system






21. Modifies the rate of heart contraction






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






23. 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)






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






25. Include arteries - veins - and capilleries






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






27. Blood is confined to blood vessel






28. Attracted to the injury site phagocytize antigenic material






29. 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






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






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






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






33. Systole and diastole - which together make a heartbeat






34. Lying between the phloem and xylem - is a type of meristem called lateral meristem that provides for lateral growth of the stem by adding to the phloem or xylem






35. Liquid portion of the blood -aqueous mixture of nutrients - salts - respiratory gases - wastes - hormones - and blood proteins -components are erythrocytes - leukocytes - and platelets






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






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






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






39. Cell-surface proteins that are macromolecules that are foreign to the host organism and trigger an immune response ex: ABO group and the Rh factor






40. Physical barier against bacterial invasion






41. 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






42. 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






43. 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






44. Inappropriate response to certain foods and pollen that cause the body to form antibodies and release histamine






45. Leukocytes that phagocytize foreign matter and organisms such as bacteria






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






47. Outer layer of xylem that is alive






48. Carry oxygenated blood from the lungs to the heart






49. Branches into a series of arteries






50. Exchange of gases - nutrients - and cellular waste products occurs via diffusion across this