Anatomy and Physiology - Levels of Organization

Vocabulary flashcards covering anatomy definitions, heart rate stats, and levels of biological organization from the Chapter 18 notes.

Anatomy

Structures of body parts, coming from the Greek for 'Cutting up'.

Physiology

Functions of body parts, coming from the Greek for 'relationship to nature'.

Average Resting Heart Rate

72 beats per minute in a young adult, with a healthy range of about 60 to 100.

Cell

The basic unit of structure and function in organisms, and the smallest living unit.

Atoms

Tiny particles made of even smaller subatomic particles that can join to form molecules.

Molecules

Structures formed when atoms join, such as water ($H_2O$), oxygen ($O_2$), and glucose.

Macromolecules

Larger structures formed when small molecules combine.

Chemical Level

The smallest level of organization, involving how atoms interact and combine into molecules.

Cell Level

The level of organization involving the basic structural and functional unit of organisms.

Tissue

A group of similar cells with the same function and the material surrounding them.