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Explore the varying characteristics of cells, from structure to function, and how they contribute to the diversity within organisms. Learn about levels of organization and cell types, ranging from unicellular to multicellular forms.
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7.3 From Cell To Organism I. Diversity in Cells A. ____________ Cells 1. Always ________ 2. Limited in _____ 3. Lack ________ & membrane bound ________ 4. Vary in cell wall _________ & ability to _____ a. many have a __________ b. _________ – long thread-like structure that rotate quickly to move an organism c. ______ – short, thick outgrowths that allow attachment to surfaces or other cells
B. _____________ Cells 1. ________ in size 2. Can be_________ or ____________ 3. Examples – _______ & ______ cells a. Both have same _____________ b. Plant cells also have __________, a large central ________, & a cell _______ 4. Can become __________ in function a. examples – ________ cells, _______ cells, _______ cells, etc.
II. Levels of Organization A. ____________ 1. A distinct group of cells that have similar _____________ & ______________ a. ex- __________tissue B. _____________ 1. A specialized structure with a specific ________ made up of many different ______ a. ex – the _____ - made up of muscle, nerve, & other tissues C. _________ System 1. Various ________ that carry out a major ________ function a. ex- __________ system – carries ______ throughout the body
III. _______ types A. More than half the biomass on Earth is composed of _____________ organisms B. ________ Groups 1. __________ organisms a. cells that live as a _________ group but do not depend on each other for __________ i. ex.- ___________ C.. Multicellularity 1. Only occurs in _____________ 2. Includes some __________, most ________, & all ________ & __________ 3. Begin as only ______ cell & divide 4. Undergo _____________ – the process by which specialized functions are created
