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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. Primary organ of transport in the plant






2. 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






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






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






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






6. Functions as the main heart by coordinated contractions in annelids






7. Systole and diastole - which together make a heartbeat






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






9. Modifies the rate of heart contraction






10. Composed of nonspecific and specific defense mechanisms






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






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. Attracted to the injury site phagocytize antigenic material






14. Branch into arterioles






15. 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






16. Two upper chambers of the heart -thin walled






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






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






19. 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






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






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






22. Converts fibrinogen (another plasma protein) into fibrin






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. 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






25. Carry oxygenated blood from the lungs to the heart






26. Supply plant cells with nutrients and remove waste products






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. Outer layer of xylem that is alive






29. Where blood flows through in arthropods






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






31. Physical barier against bacterial invasion






32. Serve protective functions -aka WBC






33. When hemoglobin bind to oxygen






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






35. Universal donor since it will not elicit a response from the recipient's immune system because it does not possess any surface antigens






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






37. Where exchange occurs in arthropods






38. Have open circulatory systems in which blood (interstitial fluid) is in direct contact with the body tissues -blood is circulated primarily by body movements






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






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






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






42. Branches into a series of arteries






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






44. 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






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






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






47. The driving force of the circulatory system






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






49. 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






50. Two lower chambers of the heart -extremely muscular