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T#3 Cells
This stack includes both terms/defs AND "target practice" with images.
Term | Definition |
---|---|
living | something that has all the characteristics of life: organization, reproduction, adjust to surroundings, grow and develop, and use energy from chemical reactions |
non-living | anything that does not have all the characteristics of life |
structure | the shape and parts of something and how they're put together |
function | the job something does and how it works |
level of organization | the bigger and smaller parts of a system that all work together to make the system work |
organelle | tiny structure inside a cell that carries out a specialized function |
cell | the smallest living part of an organism that can live by itself |
tissue | a group of cells working together (a level of organization in a multicellular organism) |
organ | a group of tissues working together (a level of organization in a multicellular organism) |
organ system | a group of organs working together (a level of organization in a multicellular organism) |
organism | science name for a 'living' thing that has all the characteristics of life |
cell membrane | organelle that is the outer boundary of a cell and which only lets certain things in and out |
cell wall | organelle in a plant or bacteria cell that is outside the cell membrane and which gives rigid support to the cell |
cytoplasm | liquid filling of a cell in which the organelles float |
nucleus | organelle that contains all the instructions for how to run a cell |
mitochondrion | organelle that chemically reacts oxygen with sugars to release energy, carbon dioxide, an d water |
chloroplast | organelle in a plant cell that uses sunlight energy to chemically react carbon dioxide with water to produce sugars and oxygen |
vacuole | organelle that stores materials inside a cell |
unicellular | adjective to describe an organism made of only one cell |
multicellular | adjective to describe an organism made of many cells |
nervous system | organ system in humans that communicates information within the body and communicates information between the body and the outside world |
muscular system | organ system in humans that makes voluntary and involuntary movement possible |
skeletal system | organ system in humans that provides structure and protection and which muscles pull against |
digestive system | organ system in humans that breaks down and absorbs nutrients from food |
excretory system | organ system in humans that filters out and gets rid of waste |
respiratory system | organ system in humans that pulls oxygen into the body and gets rid of carbon dioxide |
circulatory system | organ system in humans that moves blood to all tissues and organs in the body |