Each hair grows in an oblique epithelial tube called a
bulb
vellus
hair root
pilus
hair follicle
The Correct Answer is E
A. bulb: The bulb is the enlarged base of the hair where active cell division occurs, producing the hair shaft, but it is not the entire oblique epithelial tube.
B. vellus: Vellus refers to fine, pale hair covering most of the body in children and adult females. It describes the type of hair, not the structure in which hair grows.
C. hair root: The hair root is the portion of the hair beneath the surface of the skin, extending from the bulb to the point where the hair emerges, but it is contained within the follicle rather than being the whole tube.
D. pilus: Pilus is a general term for a hair shaft or hair in Latin, but it does not refer specifically to the oblique epithelial tube structure that surrounds hair growth.
E. hair follicle: The hair follicle is the oblique epithelial tube that surrounds the hair root and bulb. It anchors the hair into the skin and provides the environment for hair growth and regeneration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. anaerobic:Anaerobic respiration, such as glycolysis, occurs without oxygen and produces only a small amount of ATP, typically 2 ATP per glucose molecule. It provides quick energy but is not the main source of ATP generation in cells.
B. anabolic:Anabolic reactions involve building larger molecules from smaller ones, such as protein or glycogen synthesis. These processes consume energy rather than produce it, so they do not contribute to ATP generation.
C. aerobic:Aerobic respiration occurs in the presence of oxygen and includes the Krebs cycle and electron transport chain. This pathway produces the majority of ATP, yielding around 34–36 ATP molecules per glucose, making it the primary energy source.
D. None of the Correct answers are correct:This option does not apply because aerobic respiration is the well-established pathway responsible for generating most of the cell’s ATP.
Correct Answer is C
Explanation
A. cytoplasm; 2:The cytoplasm is where glycolysis occurs, producing 2 ATP molecules per glucose. The citric acid cycle does not take place in the cytoplasm.
B. cytoplasm; 30:The citric acid cycle does not occur in the cytoplasm, and it does not directly produce 30 ATP; this higher yield comes from combined cellular respiration including the electron transport chain.
C. mitochondria; 2:The citric acid cycle occurs in the mitochondrial matrix. Each turn of the cycle produces 1 ATP (or GTP) per acetyl-CoA; since one glucose yields 2 acetyl-CoA, a total of 2 ATP are produced directly by the citric acid cycle.
D. mitochondria; 28:While the citric acid cycle generates high-energy electron carriers (NADH and FADH₂) that lead to ATP production in the electron transport chain, the cycle itself directly produces only 2 ATP per glucose molecule.
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