Practice questions exploring the diversity and evolution of circulatory systems across different organisms. Useful for students studying comparative anatomy.
The normal blood pressure is about 120/80 mmHg, not 90/60 mmHg (which indicates low blood pressure).
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Hemoglobin does bind to carbon dioxide, transporting it from tissues to the lungs for exhalation.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Arteries have thick muscular walls to withstand high blood pressure exerted by the pumping action of the heart.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
The pulmonary arteries carry deoxygenated blood from the heart to the lungs.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Coronary arteries supply oxygenated blood to the cardiac muscle to ensure proper heart function.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Pulmonary veins carry oxygenated blood from the lungs to the heart, so not all veins carry deoxygenated blood.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Mature RBCs lack a nucleus, which increases their space for hemoglobin and oxygen transport.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Erythroblastosis fetalis occurs when an Rh-negative mother carries an Rh-positive fetus.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Systemic circulation carries oxygenated blood from the heart to the body's tissues and returns deoxygenated blood back to the heart.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
The liver synthesizes major plasma proteins like albumin and fibrinogen.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
Cardiac muscle requires a continuous oxygen supply for contraction.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs for oxygenation.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
