Blood Composition and RBCs

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Questions and Answers

What is the primary role of red blood cells (RBC)?

To carry oxygen to tissues (correct)
To regulate body temperature
To fight infections
To aid in blood clotting

Red blood cells contain a nucleus which allows them to store more hemoglobin.

False (B)

What pigment is present in red blood cells that enables them to carry oxygen?

hemoglobin

Red blood cells are shaped like a __________ disk.

<p>bi-concave</p> Signup and view all the answers

Match the following components of blood with their main characteristics:

<p>Red Blood Cells = Carry oxygen White Blood Cells = Fight infections Platelets = Aid in clotting Plasma = Liquid component of blood</p> Signup and view all the answers

Flashcards

RBC

Red blood cells, carrying oxygen to body tissues.

Hemoglobin

Red pigment in RBCs, carrying oxygen.

Red Blood Cell - Shape

Bi-concave disk shape for maximum surface area.

Red Blood Cell - Nucleus

RBC lacks a nucleus for more oxygen space.

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Red Blood Cell Function

Carry oxygen from lungs to body tissues.

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Study Notes

Blood Composition

Blood consists of red blood cells, white blood cells, platelets, and plasma.
Blood is classified as a tissue.

Red Blood Cells (RBCs)

RBCs make up nearly half of the blood volume.
They are also known as erythrocytes.
Their function is to transport oxygen from the lungs to body tissues.
RBCs contain hemoglobin, which combines with oxygen to form oxyhemoglobin.
Once oxygen is delivered to the tissues, oxyhemoglobin splits back into hemoglobin and oxygen.

RBC Adaptation

RBCs lack a nucleus, creating more space for hemoglobin and oxygen.
Their shape is a biconcave disc, maximizing surface area for efficient oxygen absorption.