and Answers 100% Pass
what is physiology - ✔✔focus on mechanisms of body and cellular processes and their
regulation
what are the molecules of life? - ✔✔proteins, carbs, fats, nucleic acids, signaling
molecules
what are the basic units of life? - ✔✔cells
what are the levels of organization of the human body? - ✔✔cells, tissues, organs, body
systems, whole body
how many different cell types do humans have? - ✔✔252
basic cell functions - ✔✔• Obtain nutrients and oxygen from surrounding environment
• Perform chemical reactions that provide energy
• Eliminate carbon dioxide and other wastes
• Synthesize needed cellular components
• Control exchange of materials between cell and its
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, surrounding environment
• Sensing and responding to changes in surrounding environment
• Reproduction
specialized cell functions - ✔✔-Secrete digestive enzymes that break down ingested
food
-Retain and eliminate substances accordingly
-Produce intracellular movement
-Generate and transmit electrical impulses that relay information
-produce and secrete chemical signals
what is a tissue - ✔✔a group of cells with a similar structure and specialization
types of muscle tissue - ✔✔skeletal, cardiac, and smooth
function of nerve tissue - ✔✔initiate and transmit electrical impulses
function of epithelial tissue - ✔✔exchange materials between the cell and environment
function of connective tissue - ✔✔connects, supports, and anchors various body parts
what are the four primary tissue types? - ✔✔epithelial, connective, muscle, nervous
what is a functional unit? - ✔✔a cellular or tissue structure able to perform the tasks of a
cell type or organ
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