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Chapter 3: Problem 17

In the context of cell biology, what do we mean by form follows function? What are at least two examples of this concept?

Short Answer

Expert verified
In cell biology, "form follows function" refers to the idea that the shape and structure of a cell or cellular component are directly related to its specific function. Two examples of this concept include red blood cells and neurons. Red blood cells have a unique biconcave disc shape that allows them to efficiently transport oxygen, while neurons have a distinct structural design with dendrites and axons that enable them to transmit information effectively within the nervous system.

Step by step solution

01

Introduction to the concept of "form follows function"

In cell biology, "form follows function" means that the shape and structure of a cell or cellular component are directly related to its specific function or purpose within an organism. In other words, the form of a biological structure is intricately and purposefully designed to carry out a particular function.
02

Example 1: Red Blood Cells

Red blood cells (RBCs), also known as erythrocytes, have a unique biconcave disc shape. This shape allows them to easily pass through the narrowest blood vessels, as well as increase their surface area to volume ratio, which enhances their ability to efficiently transport oxygen. The form of red blood cells, therefore, supports their primary function in the body: carrying oxygen from the lungs to other tissues and organs.
03

Example 2: Neurons

Neurons, or nerve cells, are specialized cells in the nervous system that transmit information through electrical impulses and chemical signals. Neurons have a distinct structural design, consisting of a central cell body with branching extensions called dendrites and a long, slender axon. The dendrites receive signals from other neurons and transmit them to the cell body, while the axon carries the electrical impulse away from the cell body to be transmitted to another neuron or target cell. The highly specialized shape of neurons allows them to effectively perform their function in communication within the nervous system.

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