Final Flashcards
What is the goal of both controlled and comparative experiments?
To falsify the null
What is homeostasis?
The regulation of an internal environment in an organism
What is biology the study of?
Living things
What is common between most living things?
Both are made up of cells, have common chemical compounds, convert environmental molecules to biological molecules, extract energy from environment to do work, regulate their internal environments, contain genetic information used to develop, maintain themselves, function and reproduce, use a universal molecular code to build proteins from genomic information, and exist in populations that evolve
What is a gene?
Order of nucleotides, piece of DNA that codes for a protein. Protein –> trait; all of your DNA
What is a population?
All individuals of a species that live together (individuals cannot evolve)
What illustrates evolutionary relationships?
Phylogeny
What are some internal environments? (living things)
Energy extraction, homeostasis, sensory mechanisms,
What are some external environments? (living things)
Community, ecosystems, each other
How is biology organized?
Atoms -> small molecules -> large molecules -> cells (briefly) -> organism ->
population -> community
What do genetic systems do?
Store, regulate, and use information
Nucleotide bases:
The order that the bases appear is the nucleotide sequence (AGCTTAGCCA)
Nucleotide bases are critical for protein building:
DNA is transcribed - Creating RNA from DNA ; RNA is translated - converted into proteins
How is it decided when proteins are made?
Regulation makes the final decision
What is the central dogma?
A theory stating that genetic information flows only in one direction, from DNA, to RNA, to protein, or RNA directly to protein.
