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chapter 2 vocabulary

chapter 2 science vocabulary

living thing organism
basic unit of structure and function in an organism cell
single-celled organism unicellular
composed of many cells that are specialized to do certain things multicelleuler
a change in an organism's surroundings that cause the organism to react stimulus
an action or change in behavior response
mistaken idea that living things can arise from nonliving sources spontaneous generation
organisms that make their own food autotroph
organisms that cannot make their own food heterotroph
the maintenance of stable internal conditions homeostasis
process of grouping things based on their similsrities classification
scientific study of how living things are classified taxonomy
2 part naming system (genus and species) binomial nomeclature
classification grouping that contain similar, closely related organism.(HOMO sapien) genus
group of similar organisms that can that mate with each other and produce offspring that can also mate and reproduce(homo SAPIENS) species
organisms that lack a nucleus prokaryte
dense area in a cell that contains nucleic acids nucleus
organisms with cells that contain a nucleus eukaryote
basic units of structure and function cell
instruments that make smaller objects appear larger microscope
widely accepted explanation of the relationship between cells and living things cell theory
small structures in a cell organelle
rigid layer of nonliving material that surrounds the cells of plants and some other organisms cell wall
forms the outside boundary that separates the cell from its environment(controls what comes in and out of the cell) cell membrane
region between the cell membrane and nucleus cytoplasm
powerhouse of the cell because they convert energy in food molecules into energy the cell can use to carry out its functions mitochondria
passageways carry proteins and other materials from one parts of the cell to another endoplasmic reticulum
small,grain-like bodies. they are the factories to produce proteins ribosome
cells mailroom. receives protein and other newly formed materials from the endoplasmic reticulum, packages them, and distributes them to other parts of the cell. golgi body
captures energy from sunlight and uses it to produce food for the cell. chloroplast
storage area of a cell. vacuole
small, round structures containing chemicals that break down certain materials in the cell. lysome
Created by: thatkid