Unit 1 Review: Vocab Flashcards
Evolution
An orderly succession of changes
Biology
Biology is the study of all living things. All living things are made up of organic compounds, this means they have carbon.
Metabolism
the sum of all the chemical processes that occur in the organism
Homeostasis
Or balance. All living things maintain stable internal conditions. Ex: a cell closely controls its water content by taking in or releasing water (osmosis)
Sexual reproduction
2 parents
Asexual reproduction
1 parent
Spontaneous Generation
living things could arise from nonliving things in a process called spontaneous generation.
Biogenesis
Biogenesis states that all living things come from other living things.
Aerobic
process that requires oxygen to occur
Anaerobic
process that does not require oxygen to occur
Autotroph
organism that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals. An organism that uses energy to synthesize organic molecules from inorganic substances (producer)
Heterotroph
organism that obtains its energy and nutrients by consuming other organisms. Organism that obtains organic food molecules by eating other organisms or their by-products. (consumer)
Prokaryotes
cell that does not have a nucleus or other membrane-bound organelles
Eukaryotes
Eukaryotic cells have a nucleus and other membrane-bound organelles. Prokaryotic cells do not have a nucleus or other membrane-bound organelles.
Photosynthesis
The process by which organisms obtain energy directly from sunlight is photosynthesis
Produces O2
Cellular respiration
Cellular respiration occurs in the mitochondria. and breaks down organic compounds to create energy.
Produces CO2 and H2O
Microspheres
structure spherical in shape and are composed of many protein molecules that are organized as a membrane
Coacervates
collections of droplets that are composed of molecules of different types, including linked amino acids and sugars.
Ozone layer
Ozone absorbs intense ultraviolet radiation from the sun. Ultraviolet radiation damages DNA and without the protection of the ozone layer, life could not have come to exist on land.