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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. Include arteries - veins - and capilleries






2. 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






3. Modifies the rate of heart contraction






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






5. Two upper chambers of the heart -thin walled






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






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






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






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






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






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






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






13. The driving force of the circulatory system






14. Branches into a series of arteries






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






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






17. Branch into microscopic capillaries






18. Outer layer of xylem that is alive






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






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






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






22. When hemoglobin bind to oxygen






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






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






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






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






27. 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






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






29. Have body walls that are two cells thick -all cels are direct contact with either the internal or external environments so there is no need for a specialized circulatory system






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






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






32. Where exchange occurs in arthropods






33. Responsible for both of these immune mechanisms






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






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






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






38. Blood is confined to blood vessel






39. Attracted to the injury site phagocytize antigenic material






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






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






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






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






44. Involves cells that combat fungal and viral infection






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






46. 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






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






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






49. Transport deoxygenated blood from the heart to the lungs






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