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Physiology

StudyStack Set 1- Weeks 1-6

QuestionAnswer
Negative-feedback mechanisms: All of the Above: minimize changes in blood glucose levels, maintain homeostasis, and are responsible for an increased rate of sweating when air temperature is higher than body temperature
Positive-feedback control systems: accelerate a change.
The amino group in an amino acid is: NH3+
What is the most important factor in determining the physical and chemical properties of fatty acids? Degree of saturation
Which of the following is not true of carbohydrates? All of the Above Are True of Carbohydrates: They include substances commonly called sugars, they are the body’s primary source of energy, they are a part of both DNA and RNA.
Transcription can be best described as the: synthesis of mRNA.
Which of the following is not true of diffusion? Uses cellular energy
When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis? Metaphase
Which of the following is not true of RNA? It contains deoxyribose sugar.
The correct order of the phases of mitosis is: prophase, metaphase, anaphase, telophase.
Which cells electrically insulate axons to increase the speed of conduction? Oligodendrocytes and Schwann cells
Which of the following is not a characteristic of epithelial tissue? Is important in communication and control
Basement membrane is composed of molecules made by _____ tissue. connective and epithelial
Which cells form the blood-brain barrier that protects the brain from harmful substances in the blood? Astrocytes
Due to how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint. True
Small cells that synthesize and secrete a specialized organic matrix are osteoblasts.
Normally, bone loss will begin to exceed bone gain between the ages of _____ years. 35 and 40
A gliding joint is an example of a(n) _____ joint. multiaxial
The type of movement possible at a synovial joint depends on the: shape of the articulating surfaces of the bones.
Which type of muscle is responsible for peristalsis? Single-unit smooth
Which joint allows for the widest range of movement? Ball and socket
The contractile unit of a muscle cell is the sarcomere.
Created by: robyneliz4
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