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Biology: Blood as Connective Tissue

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Questions and Answers

Which part of the heart generates the maximum number of action potentials per minute?

Aorta

Atria

Sino-atrial node (correct)

Ventricles

What is the cardiac cycle?

The sequence of events in the heart that are cyclically repeated (correct)

The contraction and relaxation of the atria and ventricles

The volume of blood pumped out by each ventricle per minute

The electrical activity of the heart that can be recorded

What is the stroke volume?

The volume of blood pumped out by each ventricle per minute

The volume of blood pumped out by each ventricle during a cardiac cycle (correct)

The electrical activity of the heart that can be recorded

The number of cardiac cycles per minute

What is the cardiac output?

The product of stroke volume and heart rate Signup and view all the answers

What can be recorded from the electrical activity of the heart?

The electrical activity of the heart Signup and view all the answers

What is the major function of blood in vertebrates?

To transport essential substances to cells Signup and view all the answers

Which of the following components make up nearly 55% of blood?

Plasma Signup and view all the answers

What are the major proteins found in plasma?

Fibrinogen, globulins, and albumins Signup and view all the answers

Which part of the blood is responsible for carrying waste substances from cells?

Plasma Signup and view all the answers

What determines the blood grouping systems in humans?

Presence of antigens A, B, and Rh on RBCs Signup and view all the answers