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






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






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






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. Conducts impulse slowly - allowing enough time for atrial contraction and for the ventricles to fill with blood






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






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






8. Attracted to the injury site phagocytize antigenic material






9. When hemoglobin bind to oxygen






10. 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






11. Converts fibrinogen (another plasma protein) into fibrin






12. 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






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






14. Supply plant cells with nutrients and remove waste products






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






16. Blood is confined to blood vessel






17. Valve on the left side of the heart that has two cusps






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






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






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






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






22. Two upper chambers of the heart -thin walled






23. 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






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






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






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






27. Excess interstitial fluid






28. Modifies the rate of heart contraction






29. 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






30. Two lower chambers of the heart -extremely muscular






31. Serve protective functions -aka WBC






32. Branches into a series of arteries






33. Fraction of the blood containing a wide variety of antibodies - that can be used to confer temporary protection against hepatitis and other diseases by passive immunity






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






35. Engulf and detroy foreign particles






36. 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






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






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






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






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






41. Physical barier against bacterial invasion






42. Branch into microscopic capillaries






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






44. 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






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






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






47. Outer layer of xylem that is alive






48. Where blood flows through in arthropods






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






50. Fluid left after blood clotting