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Science Unit Sept. 1

Unit 1 vocab

A living thing organisms
the basic unit of structure and function in living things cell
a type of organism that is made up of a single cell unicellular
a type of oraganism that is made up of many cells multicellular
the process of cahnge that occurs during an oraganisms life to produce a more complex organism development
a change in an organism's surroundings that causes the organism to react stimulus
in action of change in behavior that occurs as a result of a stimulus response
the production of offspring that are similar to the parents reproduce
the mistaken idea that living things arise from nonliving sources spontaneous generation
an experiment in which all of the variables except for one remian the same controlled environment
the one factor that a scientist changes to test a hypothisis during an experiment; also called the indenpendent variable manipulated variable
an organism that makes its own food autotrophs
an organism that cannot make his own food heterotrophs
the process by which an organisms internal environment is kept stable in spite of changes in the external environment homeostasis
an instrument that makes small objects look larger microscope
a light microscope that has more than one lense compund microscope
a widley accepted explanation of the relationship between cells and living things cell theory
the ability to make things look larger than they are magnification
the ability to clearly distinguish the individual parts of an object resolution
a rigid layer of non living material that surrounds the cells of plants and some other organisms cell wall
the outside boundary of a cell; controls which substance can enter or leave the cell cell membrane
the control center of a cell that directs the cells activities; contains the chemical instructions that direct all the cells activities an determine the cells charactercitis nucelus
material in cell that contains DNA and caries gentic information chromatin
the region of a cell located inside the cell membrane or between the cell membrane or between the cell membrane and nucelus; contains a gel-like material and cell organalles cytoplasm
rod-shaped cell structure that produce most of the energy headed to carry out the cells functions mitochondria
a cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another endoplasmic reticulum (ER)
a tiny structure in the cytoplasm of the cell were proteins are made ribosomes
a structure in a cell that receives proteins and other newly formed materials from the endoplasmic reticulum (ER), packages them, and distributes them to other parts of the cell golgi bodies
a structure in the cells of plants a some other organisms that capture energy from sunlight and uses it to produce food chloroplasts
a water-filled sac inside a cell that acts like a storage area vacuole
a small round cell structure that contains chemiclas that breakdown large food particals into smaller ones lysosomes
an organism whose cells lack a nucleus an some other cell structures prokaryotes
an organism wiht cells that contain nuclei and other cell structure eukaryotes
the preserve remains or traces of an organism that lived in the past fossil
Created by: vicky30