Chapter 1 Flashcards
Motion within the cells
Movement
the sum of all chemical processes that occur in the body
Metabolism
the breakdown of large, complex chemical substances into smaller, simpler components
Catabolism
the production of large, complex chemical substances from smaller simpler components
Anabolism
the production of a new individual when an egg cell is fertilized by a sperm cell
Sexual reproduction
the formation of new cells by cell division during the growth, repair, or replacement of tissues
Asexual reproduction
an increase in tissue, organ or body size
Growth
occurs when an unspecialized immature cell develops into a specialized, mature cell
Differentiation
the body’s ability to detect and respond to internal and external changes in the body’s environment
Responsiveness
a condition of equilibrium in the body’s internal environment
Homeostasis
the six levels of organization in humans and other animals
Chemical, Cellular, Tissue, Organ, Organ Systems, and Organism
the most basic non-living level
Chemical level
molecules are the building blocks to form cell structures
Cellular level
are communities of cells that perform related functions
Tissues
the 4 basic types of tissues
Epithelial, Connective, Muscle, and Nervous Tissue
distinct, identifiable structures that are composed of two or more different types of tissues
Organs
consists of related organs that perform a common function or functions, 11 systems, interdependent
Organ systems
the complete organism or living individual, all parts of the body function together to maintain the organism
Organismal level
a cycle of events in which a body condition is constantly monitored, evaluated, changed, re-monitored, and re-evaluated to maintain homeostasis
Feedback system
a body structure that monitors some change inside or outside the body
Receptor
reverses a change in a controlled condition
Negative feedback system
strengthens or reinforces a change in a controlled condition
Positive feedback system
