BIO 253 EXAM 3 ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

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BIO 253 EXAM 3 ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS Functions of blood - Answer -Transport it substances Regulation of temperature Gas exchange Regulate ph and other hormones Protects blood loss through clotting Blood components - Answer -45% formed elements 55% plasma erythrocytes, leukocytes, platelets, plasma What do erythrocytes (RBC) do - Answer -Hemoglobin (protein) binds to RBC and carries O2 Leukocytes (wbc) function - Answer -Whole cells that protect against infection and foreign invaders. Platelets (thrombocytes) function - Answer -Clotting and coagulation Plasma function - Answer -Makes up blood volume and carries formed elements . Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com components of plasma - Answer -albumin, globulin, fibrinogen ( water, protein other solutions) Albumin (plasma protein) functions - Answer -Maintain osmotic pressure Globulins ( antibodies) - Answer -Essential for immunity mechanism bind to a foreign object Fibrinogen ( plasma protein) - Answer -Role in clotting only when necessary Difference between plasma and serum - Answer -Plasma has clotting factors . Liquid minus formed elements and contains fibrinogen. Serum is like plasma does not contain fibrinogen but has all electrolytes, antibodies, antigens, hormines. What is found in red bone marrow - Answer -Erythrocytes Leukocytes Platelets Characteristics of rbc - Answer -Strange disc shake Oxygen binding Carries co2 to lungs Acts as buffers Lifespan 105 to 120 days Contains carbonic anhydase Need assistance on Online classes, Exams & Assignments? Reach out for instant help!! Full Course Assistance, Plagiarism-free Essay Writing, Research Paper, Dissertation, Discussion Posts, etc…. Confidential & Secure services. Tutors are available for all subjects! Email now at: tutorjean01@gmail.com