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PCAT Biology Vascular Systems In Animals And Plants

Subjects : pcat, biology
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. 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






2. Converts fibrinogen (another plasma protein) into fibrin






3. When hemoglobin bind to oxygen






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






5. 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






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






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






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






9. 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






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






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






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






13. 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






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






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






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






17. Where exchange occurs in arthropods






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






19. Supply plant cells with nutrients and remove waste products






20. Transport deoxygenated blood from the heart to the lungs






21. Phloem - cambium - and xylem layers






22. Modifies the rate of heart contraction






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






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






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






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






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






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






29. Fluid left after blood clotting






30. Excess interstitial fluid






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






32. Serve protective functions -aka WBC






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






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






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






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






37. 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






38. Branch into arterioles






39. Fetal red blood cells (which will have the Rh factor) enter maternal circulation during birth which cause the anti-Rh antibodies she produced when sensitized by the first birth may cross the placenta and destroy fetal red blood cells






40. 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






41. Carry oxygenated blood from the lungs to the heart






42. Heterotrophic cells that generally consume other cells or food particles -movement of gases and nutrients is a ccomplished by simple diffusion within the cell






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






44. The driving force of the circulatory system






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






46. Tissue involved in storage of nutrients and plant support






47. 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)






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






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






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