m m m m m m m
est 2023) Verified Answers
m m m
Which of the following is not a cellular function? -
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m correct answers m m Combustion - m m
All living cells must absorb and metabolize sources of energy, excrete waste
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m and by- m
products of those processes, and reproduce to continue offspring. Pyrotech
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nic processes (i.e. combustion) are generally metaphorical.
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What are mitochondria responsible for? -
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m correct answers m m Energy production - m m m
Mitochondria are the energy production organelles of the cell responsible f
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or the major metabolic processes of creating units of energy (e.g., ATP).
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Which if the following can cause edema? -
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m correct answers m m Increased lymphatic pressure - m m m m
Decreased vascular and lymphatic pressure does not generally result in the
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movement and accumulation of fluid into extravascular spaces. Increased pl
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asma pressure in the vascular results in hypertension, while increased lymp
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hatic pressure will readily result in the pooling of lymphatic drainage into th
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ird spaces (i.e. edema).
m m m
,WGU D027 Course Material Questions with Answers (Lat
m m m m m m m
est 2023) Verified Answers
m m m
Which of the following best describes the result of cellular reproduction? -
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m correct answers m m Two diploid cells, called daughter cells, are produced -
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The resultant offspring of cellular reproduction is the creation of two daugh
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ter cells after the completion of mitosis or meiosis. Interphase is the longes
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t period that a cell spends its life cycle and is the preparatory stage before c
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ellular reproduction. Anaphase is the separation of genetic materials to the
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opposing centromeres of the cell, followed by telophase.
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What indicates hypokalemia? -
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m correct answers m m Serum K decreases to less than 3.5 -
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Normal serum potassium (K), also known as eukalemia, is generally 3.5-
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5.5 mEq/L, with some variations of +/- 0.1-
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0.3 mEq/L depending on the laboratory testing, age, and other potential pa
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tient-
specific conditions and variations. Alterations in fluid volume or the adminis
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tration of a supplement alone do not necessarily contribute to the develop
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ment of hypokalemia.
m m
What is an example of both hyperplasia and hypertrophy? -
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m correct answers m m Uterine enlargement due to pregnancy -
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,WGU D027 Course Material Questions with Answers (Lat
m m m m m m m
est 2023) Verified Answers
m m m
Hyperplasia is the increase in the number of cells of an organ or tissue, whil
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e hypertrophy is the enlargement of the cells of a given organ or tissue with
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out a change in the number of cells. Muscle cells grow and enlarge (hypertr
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ophy) in response to increased work or stress from exercise or increased car
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diovascular pressures. When a liver is damaged or part of it is removed, it is
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m the one internal solid organ capable of regeneration to repair itself creatin
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g more cells (hyperplasia). During pregnancy, the uterus must both grow to
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create more cells and enlarge those existing cells in preparation for the sup
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port of a fetus.m m m
What regulates the sodium balance? - correct answers
m m m m m m m m Aldosterone - m m
Aldosterone is a regulatory hormone produced by the adrenal glands to aff
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ect the kidneys' regulation of sodium, potassium, and water excretion.
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What is the alteration if the extracellular fluid volume is less than normal? -
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m correct answers m m Hypotonic - m m
In hypotonic states, the cell size is increased as a result of water moving fro
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m the extracellular fluid (ECF) into the cell to increase intracellular fluid. Iso
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- or normotonic states are a balanced state between intra-
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m and extracellular fluid volumes. Hypertonic states cause water to shift out
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of the cell to increase the ECF above normal.
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, WGU D027 Course Material Questions with Answers (Lat
m m m m m m m
est 2023) Verified Answers
m m m
When in excess, what do buffers absorb? - correct answers
m m m m m m m m m m Hydrogen - m m
Excesses of acid or base, H+ or hydroxyl ion (OH−), are absorbed for the pur
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pose of maintaining pH homeostasis (pH of 7.38-7.42)
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Which of the following would a patient with metabolic acidosis have? -
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m correct answers m m pH below 7.35; Bicarbonate level below 22 mEq/L -
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The diagnosis of metabolic acidosis requires that the testing of arterial bloo
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d finds that the pH is less than 7.35 and the bicarbonate level is less than 2
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2 mEq/L.
m
What is the process by which RNA directs the synthesis of polypeptides? -
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m correct answers m m Translation - m m
Translation refers to this process. Transcription is another process in which
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RNA is synthesized. Mutation means genetic material has been modified thr
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ough inheritance. Creation is a term that does not apply in this context.
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What is the recurrence rate for autosomal dominant disease? -
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m correct answers m m 50% - m m