ATI TEAS 6 - SCIENCE HUMAN ANATOMY AND PHYSIOLOGY 2021 (A+ STUDY GUIDE)

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TI TEAS 6 - SCIENCE HUMAN ANATOMY AND PHYSIOLOGY (A+ STUDY GUIDE) - Hierarchy of Structures Lowest Hierarchy level is atOrganelles within a cell. They obtain energy from food and reproduction. -Cel... ls with the same function are collected into larger groups calledTissues. -Tissues are collected intoOrgans, carry out single task, like oxygenated blood (lungs), or filter out waste (kidneys). -Organs work together in systems that perform coordinated large-scale functions, likenourishing the body(digestive) orprotecting the body from attacks(immune). Cell Parts Organelles: Cell parts that function within a cell. They coordinate with other organelles to performs a cell's basic function, like energy processing and waste excretion. ~Examples: Ribosomes, Golgi Apparatus, Mitochondria, The Nucleus. The Nucleus -Nucleus:Small structure that containsChromosomesandRegulates the DNA of a cell. Defining structure of eukaryotic cells. It is responsible forthe passing on of genetic traits  between generations. -Contains: nuclear envelope, nucleoplasm, a nucleolus, nuclear pores, chromatin, and ribosomes. Chromosomes Highly condensed, threadlike rods of DNA. DNA is genetic material that stores information about the plant or animal. Chromatin Consists of the DNA and Proteins that make up chromosomes. Nucleolus [Show More]

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