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Levels of Organization
Homeostasis
Cells
Membranes
Body Systems
100
This is the basic living unit of all plants and animals.
What is a cell?
100
Existence and maintenance of a relatively constant environment inside the body.
What is homeostasis?
100
Surrounds the cytoplasm of living cells.
What is a cell membrane?
100
The membrane that comes in direct contact with the organ.
What is the visceral membrane?
100
The body system that exchanges oxygen and carbon dioxide and regulates blood pH. Includes the lungs.
What is the respiratory system?
200
Part of the body composed of two or more tissue types and performing one or more specific functions.
What is an organ?
200
The mechanism by which any deviation from an ideal normal set point is made greater.
What is positive feedback?
200
Replicates DNA during the cell cycle.
What is the nucleus?
200
The membrane that lines the cavity wall.
What is the parietal membrane?
200
The body system that provides protection and support. Includes skull and ribs.
What is the skeletal system?
300
Group of organs classified as a unit because of a common function or set of functions.
What is an organ system?
300
The mechanism by which any deviation from an ideal normal set point is resisted and returns to it's normal state. (Maintains homeostasis)
What is negative feedback?
300
Absorbs, transports, and processes nutrients.
What is the cytoplasm?
300
The membrane that is associated with the abdominal organs.
What is the peritoneal membrane?
300
Body system that produces body movements and body heat.
What is the muscular system?
400
Any living thing considered as a whole, whether composed of one or many cells.
What is an organism?
400
Childbirth is an example of this kind of feedback.
What is positive feedback?
400
Controls what enters and exits the nucleus.
What is the nuclear membrane?
400
The membrane that is associated with the heart.
What is the pericardial membrane?
400
The body system that detects sensations and controls movements and other functions. Includes the brain and spinal cord.
What is the nervous system?
500
The particles that are smaller than an atom.
What are the subatomic particles?
500
Breathing heavily while running is an example of this kind of feedback.
What is negative feedback?
500
Protein synthesis occurs in this part of the cell.
What are the ribosomes?
500
The name of the membrane that lines the cavity in which the heart is found.
What is the parietal pericardial membrane?
500
The body system that absorbs nutrients and removes waste. Includes the small and large intestines.
What is the digestive system?