BSC 2085 Exam 1: Anatomy, Physiology, and Biochemistry
Key Concepts UPDATED ACTUAL Questions and CORRECT
Answers
Anatomy The study of the structure and organization of living organisms.
Physiology The study of the functions and processes of living organisms and their parts.
Homeostasis The process by which living organisms maintain a stable internal environment
despite external changes.
Positive Feedback A mechanism that amplifies a response or increases the output in a system, often
leading to a greater change.
Negative Feedback A mechanism that counteracts a change in a system, helping to maintain
homeostasis by reducing the output.
Homeostatic Control Mechanism The process involving a receptor, control center, and effector to regulate
physiological functions.
Receptor A structure that detects changes in the environment and sends information to the
control center.
Control Center The part of the homeostatic mechanism that processes information and
determines the appropriate response.
Effector An organ or cell that acts in response to signals from the control center to restore
balance.
Levels of Biological Organization The hierarchy of biological structures, ranging from atoms to molecules, cells,
tissues, organs, systems, and organisms.
Epithelium A type of tissue that covers body surfaces and lines cavities, serving functions
such as protection, absorption, and secretion.
Atom The basic unit of matter, consisting of a nucleus surrounded by electrons.
Subatomic Particles Particles that make up an atom, including protons, neutrons, and electrons.
Electron Shells Regions around the nucleus of an atom where electrons are likely to be found,
with specific maximum occupancy.
Periodic Table A tabular arrangement of elements organized by atomic number, electron
configuration, and recurring chemical properties.
Valence Shell The outermost shell of an atom that contains the valence electrons, which are
involved in chemical bonding.
Key Concepts UPDATED ACTUAL Questions and CORRECT
Answers
Anatomy The study of the structure and organization of living organisms.
Physiology The study of the functions and processes of living organisms and their parts.
Homeostasis The process by which living organisms maintain a stable internal environment
despite external changes.
Positive Feedback A mechanism that amplifies a response or increases the output in a system, often
leading to a greater change.
Negative Feedback A mechanism that counteracts a change in a system, helping to maintain
homeostasis by reducing the output.
Homeostatic Control Mechanism The process involving a receptor, control center, and effector to regulate
physiological functions.
Receptor A structure that detects changes in the environment and sends information to the
control center.
Control Center The part of the homeostatic mechanism that processes information and
determines the appropriate response.
Effector An organ or cell that acts in response to signals from the control center to restore
balance.
Levels of Biological Organization The hierarchy of biological structures, ranging from atoms to molecules, cells,
tissues, organs, systems, and organisms.
Epithelium A type of tissue that covers body surfaces and lines cavities, serving functions
such as protection, absorption, and secretion.
Atom The basic unit of matter, consisting of a nucleus surrounded by electrons.
Subatomic Particles Particles that make up an atom, including protons, neutrons, and electrons.
Electron Shells Regions around the nucleus of an atom where electrons are likely to be found,
with specific maximum occupancy.
Periodic Table A tabular arrangement of elements organized by atomic number, electron
configuration, and recurring chemical properties.
Valence Shell The outermost shell of an atom that contains the valence electrons, which are
involved in chemical bonding.
