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






2. 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






3. Relatively thinly walled - inelastic vessels that conduct deoxygenated blood toward the heart






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. Carry oxygenated blood from the lungs to the heart






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






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






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






9. Primary organ of transport in the plant






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






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






12. Responsible for the proliferationof antibodies after exposure to antigens






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






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






15. Supply plant cells with nutrients and remove waste products






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






17. Responsible for both of these immune mechanisms






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






19. 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






20. Engulf and detroy foreign particles






21. With the aid of its cofactors calcium and Vitamin K - converts the inactive plasma protein prothrombin to its active form - thrombin






22. Composed of nonspecific and specific defense mechanisms






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






24. 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






25. Actively dividing - undifferentiated cells of a plant






26. 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






27. Blood transports nutrients and O2 to tissue and wastes and CO2 from tissue -transport of gases - transport of nutrients and wste - and clotting






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






29. Physical barier against bacterial invasion






30. Tissue involved in storage of nutrients and plant support






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






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






33. Serve protective functions -aka WBC






34. Attracted to the injury site phagocytize antigenic material






35. Functions to absorb materials through the root hairs and anchor the plant -provide storage for energy reserves






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






37. The driving force of the circulatory system






38. 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






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






40. Branch into microscopic capillaries






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






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






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






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






45. 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






46. Excess interstitial fluid






47. Where exchange occurs in arthropods






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






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






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






Can you answer 50 questions in 15 minutes?



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