Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
Atoms
|
Smallest particles of an element that have the property of an element.
|
|
Molecules
|
A particle composed of two or more joined atoms.
|
|
Macromolecules
|
Large molecules, such as proteins or nucleic acid.
|
|
Cell
|
The structural and functional unit of life.
|
|
Organelles
|
A structure in a cell that has a specialized function.
|
|
Tissue
|
Groups of similar cells that perform a specialized function.
|
|
Organs
|
A structure consisting of a group of tissues with a specialized function.
|
|
Organ Systems
|
A group of organs coordinated to carry on a specialized function.
|
|
Organism
|
An individual living thing.
|
|
Anatomy
|
Branch of science dealing with the form and structure of body parts.
|
|
Physiology
|
The study of body functions.
|
|
Metabolism
|
All of the chemical reactions in cells that breaks down or build up substances.
|
|
Internal Environment
|
The fluid surrounding body cells.
|
|
Homeostasis
|
A state of balance in which the body's internal environment remains in normal range.
|
|
Homeostatic Mechanisms
|
Self regulating control stations that the body uses to control homeostasis.
|
|
Receptors
|
Specialized cells that provide information about the environment. Also, cell surface structures that bind particular molecules, called ligands, thereby transmitting a signal inside the cell.
|
|
Set Point
|
A component of a homeostatic mechanism that establishes the range that is optimal for a particular measurement.
|
|
Effectors
|
Muscles or glands that effect changes in the body.
|
|
Negative Feedback
|
A mechanism activated by an imbalance that corrects the imbalance.
|