Carbohydrate component of plant cell walls.
Storage polysaccharide of plants.
Extremely branched polymer of glucose.
Polysaccharide found in arthropod exoskeletons.
Suffix of a sugar.
Made of 4 rings of carbon.
Steroid common in cell membranes, also in many hormones.
Bonds that connect amino acids.
Reinforce tertiary structure.
Chain of amino acids.
Either an alpha helix or beta pleated sheet.
Results from interactions between side chains.
Results from 2 or more polypeptide subunits.
Suffix of a protein.
Bonds between phosphate group and pentose sugar in nucleic acids.
To put together.
To break apart.
Condensation reaction where molecules are connected by loss of a water molecule.
Breaking down complex molecules by the chemical addition of water.
Another name for dehydration synthesis.
Another term for R-group. A variable group that determines the unique chemical properties of a particular amino acid.
A spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure.
beta pleated sheet
One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, held together by hydrogen bonds.
Protein molecules that assist the proper folding of other proteins.
saturated fatty acids
A fatty acid in which all carbons are connected by single bonds, thus maximizing the number of hydrogen atoms that can attach to the carbon skeleton.
unsaturated fatty acids
A fatty acid possessing one or more double bonds between the carbons. Such bonding reduces the number of hydrogen atoms attached to the carbon skeleton.
A simple sugar that is the basic subunit of a carbohydrate.
A covalent bond formed between two monosaccharides by a dehydration reaction.
Flattened, membrane-bound compartments that make up the Golgi apparatus.
All cells in an organism contain the same complement of genes. These are the same set of genes that are established in the fertilized egg.
The number of different species in a community.
The number and relative abundance of species in a community.
Growth of a population in an ideal, unlimited environment, represented by a J-shaped curve.
Growth pattern in which a population's growth rate slows or stops following a period of exponential growth, forming an S-shaped curve.
carrying capacity (K)
Maximum population of a particular species that a given habitat can support over a given period.
Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms.
density dependent factors
A limiting factor of a population wherein large, dense populations are more strongly affected than small, less crowded ones.
density independent factors
Limiting factor that affects all populations in similar ways, regardless of population size.
Also called density-independent selection. Characterized by many offspring with little or no parental care.
Also called density-dependent selection. Characterized by few offspring with little or much parental care.
type I survivorship
Usually experience high survival in early and middle life, followed by a rapid decline in later life. Usually K-selected
type II survivorship
Experience roughly a constant mortality rate regardless of age. Prey animals such as birds can follow this pattern of survival.
type III survivorship
Experience the greatest mortality early on in life, with relatively low rates of death for those surviving. Usually r-selected.
A model used in population geography that describes the ages and number of males and females within a given population.
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