Ch. 1.4 The Body's Levels of Organization Flashcards
Metabloism
The sum of all the chemical reactions that occur within the body.
Metable
Change
Anabolism
Small molecules are joined to form larger molecules
Anabole
A raising up
Catablism
Large molecules are broken down into smaller molecules.
Katabole
A casting down
Responsiveness
The ability to detect and react to stimuli (internal or external)
Regulation
An organism must be able to adjust internal bodily function in response to environmental changes.
Reproduction
All organisms produce new cells for growth, maintenance, and repair.
What process do somatic (body) cells use to divide?
Mitosis
What process do gamete cells use to reproduce?
Meiosis
What are the organization levels from simple to complex?
Chemical Cellular Tissue Organ Organ System Organism
What is my organization levels pneumonic?
Charley comes toddling onward over oranges.
Molecule
Two or more atoms combined
Atom
Smallest units of matter that exhibit characteristics of an element (carbon and hydrogen)
Macromolecules
Larger molecules that include some proteins and DNA.
Cells
The smallest living structures
Tissue
Groups of similar cells that perform common functions
What are the four major types of tissue? What do they do?
Epithelial- cover exposed surfaces and lines body cavities
Connective- protects, supports, and binds structures and organs
Muscle tissue- produces movement
Nervous- Conducts nerve impulses for communication
What are the parts of the integumentary system?
Hair, toe nails, skin
What does the integumentary system do?
Provides protections, regulates body temperature, prevents water loss, site of cutaneous receptors and some glands, synthesizes vitamin D
What are the parts of the skeletal system?
All bones and vertebrae
What does the skeletal system do?
Provides support and protection, site of hemopoiesis (blood cell production), stores calcium and phosphorus, provides sites for ligament and muscle attachment
What are the parts of the Muscular system?
All muscles and tendons