Which subclassification of lipids would include cholesterol and its derivatives?
eicosanoids
fat soluble vitamins
phospholipids
fats
steroids
The Correct Answer is E
A. eicosanoids: Eicosanoids (like prostaglandins) are derived from arachidonic acid, not cholesterol.
B. fat soluble vitamins: These are vitamins A, D, E, and K, which are lipids but are not cholesterol-based structures.
C. phospholipids: Phospholipids have a glycerol backbone, fatty acids, and a phosphate group, not a steroid ring structure.
D. fats: Fats (triglycerides) are made of glycerol + three fatty acids, not cholesterol.
E. steroids: Steroids include cholesterol, testosterone, estrogen, and other hormones with a four-ring carbon backbone.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. 2, 1, 4, 3, 5:
Incorrect order; places tissue before cellular level, which is biologically inaccurate.
B. 2, 4, 1, 5, 3:
Chemical (atoms and molecules) → Cellular (basic units of life) → Tissue (groups of similar cells) → Organ (structure of multiple tissues) → Organ System (group of organs working together).
C. 2, 1, 4, 5, 3:
Tissue comes before cell, which is anatomically incorrect.
D. 4, 1, 2, 5, 3:
Begins at cellular, skipping the chemical level, and misorders early levels.
E. 4, 1, 2, 3, 5:
Starts too late and ends with the organ instead of the organ system.
Correct Answer is D
Explanation
A. Brain: The brain is the control center, not the effector.
B. Shivering: Shivering is a response, not an anatomical structure. The effector must be a structure that performs an action.
C. Thermoreceptors: These are the sensory receptors (detectors), not effectors.
D. Skeletal muscles: Skeletal muscles are the effectors that contract to produce shivering, generating heat in response to cold.
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