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DCCC BIO 150 Final Exam Study Guide with Complete Solutions
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DCCC BIO 150 Final Exam Study Guide with Complete Solutions
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©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AMWEST VIRGINIA UNIVERSIRTY- (WV) : 26506
DCCC BIO 150 Final Exam Study Guide
with Complete Solutions
Hierarchy of Complexity - ✔️✔️Atom
Molecules
Organelles
Cells
Tissue
Organ
Organ System
Organism
Molecules - ✔️✔️Particle composed of at least two atoms
Organelles - ✔️✔️Microscopic structures in a cell that carry out individual functions
Cells - ✔️✔️Smallest unit of an organism that carry out basic functions of life
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,©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AM
WEST VIRGINIA UNIVERSIRTY- (WV) : 26506
Tissue - ✔️✔️Mass of similar cells that form an organ and preform a specific function
Organ - ✔️✔️Structure composed of two or more tissue types that work together to carry
out a particular function
Organ System - ✔️✔️Group of organs with unique collective function
Organism - ✔️✔️Single, Complete indicidual
Metabolism - ✔️✔️Sum of all internal chemical change/ reactions
Two classes
Anabolism
Catabolism
Produces chemical waste that requires excretion
Anabolism - ✔️✔️Complex molecules are synthesized from simpler ones
Protein synthsis
Catabolism - ✔️✔️Complex molecules are broken down into simpler ones
Protein digestion
Feedback - ✔️✔️Mechanism used by the body to maintain homeostasis
Negative
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,©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AM
WEST VIRGINIA UNIVERSIRTY- (WV) : 26506
Positive
Negative Feedback - ✔️✔️Process in which the body senses a change and activates
mechanisms to negate or reverse it
3 components:
Receptor
Integrating center (control)
Effector
Receptor - ✔️✔️structure that senses a change in the body
Integrating center (control) - ✔️✔️processes information and makes a decision about
response
Effector - ✔️✔️cell or organ that carries out final corrective action
Negative Feedback Examples - ✔️✔️body temperature
Above normal creates vasodilation- sweating
Below normal creates vasoconstriction- shivering
Blood pressure
Drop in the morning
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, ©PREP4EXAMS@2024 [REAL-EXAM-DUMPS] Sunday, August 4, 2024 12:41 AM
WEST VIRGINIA UNIVERSIRTY- (WV) : 26506
Results in body increasing HR
Positive Feedback - ✔️✔️Self-amplifying cycle where a physiological change leads to
even greater change in the same direction
Producing rapid change
Positive Feedback Example - ✔️✔️Birth
Fetus head pushes on cervix and stimulates nerve endings
Signals travel to the brain
Stimulation of the pituitary gland to secrete oxytocin
Oxytocin travels through the blood to stimulate the uterus to contract
Continues until fetus is expelled
Anatomical Position - ✔️✔️Assumption of the body position that medical professionals
use to identify where structures are located
Anatomical Position Description - ✔️✔️Person stands erect
Feet flat on floor close together
Arms at sides
Palms supinated
Face directed forward
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