Anatomy & Physiology — Levels of Organization

Fill-in-the-blank flashcards covering levels of organization, basic cell/tissue/organ/system definitions, and growth/differentiation concepts.

The basic structural and functional unit of a living organism is the __.

cell

A __ is 2 or more cell types performing a specific function.

tissue

An __ is 2 or more tissue types performing a specific function.

organ

An __ system is organs working together to accomplish a specific function.

organ system

The smallest living structure is the __.

cell

One of the necessary life functions of an organism is __.

Movement

Another essential life function is __.

Responsiveness

A life function involves performing __.

Work

A necessary life function is __, the production of offspring.

Reproduction

A necessary life function is __, the increase in size of the organism or part of it.

Growth

Differentiation is when unspecialized cells become __ to perform specific functions.

specialized

Together, Growth increases size/quantity of structural units, while Differentiation makes those units more __.

specialized

Going from cell → tissue → organ → organ system to __.

organelle