Test your basic knowledge |

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






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






3. Outer layer of xylem that is alive






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






5. Tissue involved in storage of nutrients and plant support






6. Responsible for both of these immune mechanisms






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






8. As water evaporates from the leaves of plants - a vacuum is created pulls water up the stem






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






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






11. Involves cells that combat fungal and viral infection






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






13. Transport deoxygenated blood from the heart to the lungs






14. Systole and diastole - which together make a heartbeat






15. Modifies the rate of heart contraction






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






17. Serve protective functions -aka WBC






18. Where blood flows through in arthropods






19. 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






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






21. 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






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






23. Where exchange occurs in arthropods






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






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






26. 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






27. Branch into arterioles






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






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






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






31. 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






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






33. 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






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






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






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






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






39. 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






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






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






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






43. Defined as the total volume of blood the left ventricle pumps out per minute = heart rate (number of BPM) x stroke volume (volume of blood pumped out of the left ventricle per contraction)






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






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






46. Converts fibrinogen (another plasma protein) into fibrin






47. Branches into a series of arteries






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






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






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