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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. Prevent extensive blood loss while the damaged vessel heals itself






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






3. Transport deoxygenated blood from the heart to the lungs






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






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






6. Supply plant cells with nutrients and remove waste products






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






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






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






10. 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






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






12. The driving force of the circulatory system






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






14. When hemoglobin bind to oxygen






15. Tissue involved in storage of nutrients and plant support






16. The period during which the ventricles contract






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






18. Actively dividing - undifferentiated cells of a plant






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






20. Where exchange occurs in arthropods






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






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






23. 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






24. Responsible for the proliferationof antibodies after exposure to antigens






25. Where blood flows through in arthropods






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






27. 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






28. 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






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






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






31. 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






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






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. (earthworm) uses a closed circulatory system to deliver materials to cells that are not in direct contact with the external environment






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






36. Responsible for both of these immune mechanisms






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






38. Carry oxygenated blood from the lungs to the heart






39. Two upper chambers of the heart -thin walled






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






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






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






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






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






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






47. Modifies the rate of heart contraction






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






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






50. Phagocytic cells that filter the lymph - removing and destroying foreign particles and pathogens