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PHGY 170 Final Exam (2023) with Correct Answers Already Graded A+
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PHGY 170 Final Exam (2023) with Correct Answers Already Graded A+
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PHGY 170 Final Exam (2023) with Correct Answers Already Graded A+ PHGY 170 Final Exam (2023) with Correct Answers Already Graded A+ When were cells first discov ered? 17th century Three Tenets of Cell Theory All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. All cells come from preexisting cells. 00:04 01:34 Prokaryotes No true nucleus; smaller cells; always unicellular; binary fission to divide; always reproduce asexually, ex. bacteria Eukaryotes Has a nucleus; large cells; usually multicellular; mitosis/meiosis; sexual/asexual; ex. plant and animal Epithelial Cells Form protective barriers in tissues and may be specialized to absorb or secrete specific compounds Muscle Cells Responsible for mov ement of the skeleton, heart, and many internal organs (e.g. stomach) Nerve Cells nduct electrical signals throughout th e body. Control contraction of muscles. Responsible for the five senses (taste, touch, smell, sight, hearing) Connective Tissues Cells Create extracellular material that holds cells together in tissue. May be specialized to absorb or resist external forces (e.g. tendons, vertebral discs) Bone Cells rm the bones of the skeletal system to give strength and support to the body. These are very tough cells. Secretory Cells These cells form glands and, as their name implies, are secretory Adipose Cells These are fat cells located throughout the body to store fat. Red Blood Cells These are cells formed primarily in the bone marrow and release d into the circulation where they move throughout the body. They have limited life spans and must be continuously replaced. 00:02 01:34 Hydrophilic Water -liking. Molecules that are attracted to water. Carbon based molecules are usually___ and ___ large and nonpolarThe benefits of buying summaries with Stuvia:
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