Flashcards in Chapter 1: Cells, Life, and Homeostasis Deck (29):
Membrane-enclosed, basic, replicable unit of living things.
Fluid mosaic lipid bilayer that surrounds a cell, separating the cytoplasm on the inside from the extracellular environment on the outside.
Ability to allow the movement of some substances but not of others, particularly across membranes
Amino acid-based polymeric substance that is found in association with lipid bilayers.
The liquid volume of a cell that is found immediately interior to the plasma membrane.
Multi-molecular, including multi-protein, sub-cellular machine.
Double-layered membrane-associated structure containing the chromosomes of eukaryotic organisms, part of the endomembrane system.
The site of cellular respiration in eukaryotic cells.
Material found between animal cells, supplying both cushioning to tissues and resistance to tearing.
Cells making up the same organism having dissimilar functions and appearances despite being genetically identical.
The idea that living systems, in order to survive and prosper, must control within relatively narrow ranges various physical, chemical, and physiological parameters associated with their bodies.
A system for which change occurs but no net change occurs, whether or not that lack of net change requires an ongoing input of energy.
All of the chemical reactions that take place within an organism.
Chemical reactions associated with organisms that break substances down to yield readily usable forms of energy.
Chemical reactions associated with organisms that are energy requiring and which build molecules up.
Specialized amino-acid based polymers within cells and bodies that provide important functions other than participating in chemical reactions.
Movement of materials such as into and out of cells.
Nonsolid aspects of bodies that are found outside of cells and which are contained within the integumentary system.
Nonsolid aspects of bodies that are found outside of cells, within the integumentary system, and other than that making up blood and lymph.
The state that a system tends to achieve especially in the absence of external input.
The normal level of a given homeostatic parameter.
The idea that homeostasis actually consists of ranges in conditions that also can vary non-pathologically depending on circumstances.
The tendency for perturbations of systems away from a given state to be resisted.
The tendency for perturbations of systems away from a given state to be amplified.
Energy consumption observed by an organism that is at rest and otherwise not participating in any extraneous activities.
Basal metabolic rate
Particularly shorter-term changes that organisms display that serve to enhance organism functionality especially in response to new environmental conditions.
Contribution of multiple interacting systems to the maintenance of homeostasis.