Bio 168 Anatomy and Physiology at Piedmont Community College
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Free Bio 168 Anatomy and Physiology at Piedmont Community College Questions
Hepatic physiology refers to the study of the function of the liver
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True
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False
Explanation
Correct Answer: True
Explanation:
The term "hepatic" relates to the liver, and physiology refers to the study of the functions of a living organism or its parts. Therefore, hepatic physiology is the study of how the liver functions, including processes like metabolism, detoxification, and bile production.
Glycogen is composed of many many glucose molecules, and is stored, primarily, in the spleen.
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True
-
False
Explanation
Correct Answer: False
Explanation:
While it is true that glycogen is made up of many glucose molecules, it is not primarily stored in the spleen. Glycogen is mainly stored in the liver and skeletal muscles, where it serves as a readily available energy reserve. The spleen is involved in immune function and blood filtration, not energy storage.
The femoral artery is found in the lower leg
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True
-
False
Explanation
Correct Answer: False
Explanation:
The femoral artery is located in the upper thigh. It travels down the front of the thigh and transitions into the popliteal artery behind the knee, which then supplies blood to the lower leg. Therefore, it is not located in the lower leg itself.
A sagittal plane bisects the human into superior and inferior halves.
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True
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False
Explanation
Correct Answer: False
Explanation:
The sagittal plane divides the body into left and right halves, not superior (upper) and inferior (lower) halves. The plane that separates the body into superior and inferior portions is called the transverse (or horizontal) plane.
Which of the following are proteins composed of
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fatty acids
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nucleic acids
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unsaturated fatty acids
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amino acids
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saturated fatty acids
Explanation
Correct Answer D: amino acids
Explanation:
Proteins are large, complex molecules made up of amino acids, which are linked together by peptide bonds. There are 20 different amino acids that combine in various sequences to form all the proteins needed by the body.
Why the Other Options Are Incorrect:
A. fatty acids – These are the building blocks of fats, not proteins.
B. nucleic acids – These make up DNA and RNA, not proteins.
C. unsaturated fatty acids – These are a type of fat, not a component of protein.
E. saturated fatty acids – Like unsaturated, these are fat molecules, not protein components.
Carbonic acid is a molecule that will
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donate a hydrogen ion
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accept a hydrogen ion
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function has nothing to do with hydrogen ions
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a fatty acid having no single, double, nor triple bonds
Explanation
Correct Answer A: donate a hydrogen ion
Explanation:
Carbonic acid (H₂CO₃) is a weak acid formed when carbon dioxide dissolves in water. As an acid, it can donate hydrogen ions (H⁺), which plays a key role in the body's pH buffering system, helping to maintain acid-base balance in the blood.
Why the Other Options Are Incorrect:
B. accept a hydrogen ion – Accepting H⁺ is characteristic of a base, not an acid.
C. function has nothing to do with hydrogen ions – Incorrect; carbonic acid's primary function is buffering pH by releasing or holding H⁺ ions.
D. a fatty acid having no single, double, nor triple bonds – This describes a nonexistent chemical structure, and carbonic acid is not a fatty acid.
The normal pH of blood is
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7.31
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7.4
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8.0
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7.48
Explanation
Correct Answer B: 7.4
Explanation:
The normal pH range of human arterial blood is 7.35 to 7.45, with 7.4 being the average and ideal value. This slightly alkaline pH is essential for proper cellular function. Values below 7.35 indicate acidosis, and values above 7.45 indicate alkalosis.
Why the Other Options Are Incorrect:
A. 7.31 – This is below the normal range and suggests acidosis.
C. 8.0 – This is far too alkaline for human blood and is incompatible with life.
D. 7.48 – This is above the normal range and indicates alkalosis.
The thigh is proximal to the foot; moving proximally from the wrist brings you to the thumb
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True
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False
Explanation
Correct Answer: False
Explanation:
The first part is correct: the thigh is proximal to the foot, meaning it is closer to the body’s center. However, the second part is incorrect. Moving proximally from the wrist brings you toward the elbow and shoulder, not the thumb. The thumb is distal to the wrist.
The breakdown of ATP is an example of a synthesis reaction
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True
-
False
Explanation
Correct Answer: False
Explanation:
The breakdown of ATP (adenosine triphosphate) into ADP (adenosine diphosphate) and inorganic phosphate is a decomposition reaction, not a synthesis reaction. In this process, a larger molecule (ATP) is broken down into smaller components, releasing energy used by cells for various functions.
The protein hemoglobin is configured as which protein structural type
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primary
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secondary
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none of the choices are correct
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quaternary
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tertiary
Explanation
Correct Answer D: quaternary
Explanation:
Hemoglobin is a quaternary structure protein because it is composed of four polypeptide subunits—two alpha and two beta chains—that function together as one unit. These subunits interact through various bonds to maintain the protein’s overall shape and function in oxygen transport.
Why the Other Options Are Incorrect:
A. primary
Primary structure refers only to the sequence of amino acids, not the complete arrangement of multiple subunits like in hemoglobin.
B. secondary
Secondary structure includes local folding patterns like alpha-helices and beta-sheets, but does not describe the full multi-chain structure of hemoglobin.
C. none of the choices are correct
This is incorrect because quaternary is the correct classification.
E. tertiary
Tertiary structure refers to the three-dimensional shape of a single polypeptide chain, not the arrangement of multiple chains as found in hemoglobin.
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