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BMMS Chap 3 Life Sci

QuestionAnswer
a group of organs that work together to perform a major function. organ system
the basic unit of structure and function in living things. cell
composed of many cells. multicellular
made up of different kinds of tissues that work together. organ
a widely accepted explanation of the relationship between cells and living things . cell theory
the cell’s control center. nucleus
small structures that carry out specific functions within the cell. organelles
controls what substances come into and out of a cell. cell membrane
rod-shaped structures that convert energy in food molecules to energy the cell can use. mitochondria
a rigid layer of nonliving material that helps protect and support plant cells. cell wall
small, grain like bodies that function as factories to produce proteins. ribosomes
large, water-filled sacs that are storage areas of cells. vacuole
capture energy from sunlight and use it to produce food. chloroplast
help form proteins and other materials, and also carry material throughout the cell. endoplasmic reticulum
any substance that cannot be broken down into simpler substances. element
energy-rich organic compound , such as fat, oil, or wax,that is made of carbon, hydrogen, and oxygen. lipid
a type of protein that speeds up a chemical reaction in a living thing. enzyme
when two or more elements combine chemically, they form this. compound
contain the instructions that cells need to carry out all the functions of life. nucleic acid
a small molecule that forms proteins. amino acid
some substances can pass through the membrane while others cannot. selectively permeable
the diffusion of water molecules through a selectively permeable membrane. osmosis
the movement of materials through a cell membrane using energy. active transport
the genetic material that carries information and is passed from parent to offspring. DNA
the process by which molecules move from an area of higher concentration to an area of lower concentration. diffusion
Created by: tgsheldon
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