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Blood: The Fluid Tissue

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Questions and Answers

Why is blood considered both a tissue and a fluid?

Because it transports oxygen and carbon dioxide.

Because it is pumped by the heart to all parts of the body.

Because it is a collection of specialized cells suspended in plasma. (correct)

Because it is red in color and flows through the body.

What is the primary function of red blood cells in the body?

Transporting oxygen from the lungs to the body tissues. (correct)

Preventing blood loss in case of injury.

Helping in blood clot formation.

Producing antibodies to fight infections.

Why is it crucial for blood flow to be constant within the body?

To ensure blood reaches every body part equally.

To prevent blood cells from sticking together.

To maintain the composition of the blood. (correct)

To reduce the heart's workload.

What would happen if blood flow ceases in the body?

Death would occur within minutes due to an unfavourable environment for cells. Signup and view all the answers

Which organ is responsible for removing excess water and waste products from the blood?

Kidneys Signup and view all the answers

How do red blood cells contribute to the exchange of oxygen and carbon dioxide in the body?

By transporting oxygen from the lungs to body tissues and carbon dioxide from tissues to the lungs. Signup and view all the answers

What is the primary purpose of the circulatory system in larger and more complex animals?

Transporting adequate amounts of oxygen and other substances Signup and view all the answers

What happens to iron released during the destruction of old red cells?

It is conveyed by the plasma to sites of new red cell production Signup and view all the answers

How do unicellular organisms and primitive multicellular animals exchange gases and nutrients?

Via simple diffusion in their surrounding medium Signup and view all the answers

Which animal lacks a blood system but transports foodstuffs and oxygen through water pumped inside its body?

Sponges Signup and view all the answers

What mechanism prevents a potentially hazardous depletion of glucose in the blood?

Accelerated release of glucose into the blood Signup and view all the answers

In which organisms does blood pass through a respiratory exchange membrane for oxygen and carbon dioxide exchange?

Fish with gills Signup and view all the answers