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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. Composed of nonspecific and specific defense mechanisms






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






3. 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






4. Branches into a series of arteries






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






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






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






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






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






10. Outer layer of xylem that is alive






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






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






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






14. Tissue involved in storage of nutrients and plant support






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






16. Two lower chambers of the heart -extremely muscular






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






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






19. 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)






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






21. The period during which the ventricles contract






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






23. Carry oxygenated blood from the lungs to the heart






24. Severe anemia for the fetus caused by Rh+ fetus






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






26. 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






27. Engulf and detroy foreign particles






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






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






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






31. 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






32. Involves cells that combat fungal and viral infection






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






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






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






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






37. Involves the transfer of antibodies produced by another individual or organism -acquired either passively or by injection






38. Systole and diastole - which together make a heartbeat






39. Blood is confined to blood vessel






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






41. 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






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






43. Fluid left after blood clotting






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






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






46. Modifies the rate of heart contraction






47. 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






48. Phloem - cambium - and xylem layers






49. Initiated by the body in response to physical damage and often accompanied by fever






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