Chondroblasts
within the cartilage divide and secrete new matrix
remain in compact bone even after the epiphyseal plate closes
are mature cartilage cells located in spaces called lacunae
never lose their ability to divide
The Correct Answer is A
A. within the cartilage divide and secrete new matrix: Chondroblasts are immature cartilage cells responsible for producing and secreting the extracellular matrix, including collagen and proteoglycans. They actively divide and contribute to cartilage growth, especially at the periphery (appositional growth).
B. remain in compact bone even after the epiphyseal plate closes: This description more closely matches osteocytes in bone, not chondroblasts. Chondroblasts are specific to cartilage and do not persist in compact bone after growth plates close.
C. are mature cartilage cells located in spaces called lacunae: This describes chondrocytes, the mature form of cartilage cells that reside in lacunae and maintain the matrix, rather than actively secreting it like chondroblasts.
D. never lose their ability to divide: Chondroblasts can divide while immature, but once they mature into chondrocytes, their division is very limited. Therefore, they do lose much of their proliferative capacity after maturation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. gluconeogenesis, citric acid cycle, lipolysis:Gluconeogenesis is the synthesis of glucose from non-carbohydrate sources, and lipolysis is the breakdown of fats. Neither represents the complete oxidation of glucose for energy production.
B. glycogenesis, lipogenesis, oxidative phosphorylation of the electron transport chain:Glycogenesis and lipogenesis involve the storage of glucose and fat, respectively, rather than its breakdown for ATP production.
C. glycolysis, citric acid cycle, oxidative phosphorylation of the electron transport chain:Glycolysis breaks glucose into pyruvate in the cytoplasm. The citric acid cycle oxidizes acetyl CoA derived from pyruvate, producing NADH and FADH₂. These coenzymes then donate electrons in the electron transport chain for oxidative phosphorylation, generating ATP, completing glucose oxidation.
D. lipolysis, glycogenolysis, beta oxidation:These processes involve the breakdown of fats and glycogen, not the full oxidation of glucose, so they do not represent the standard cellular respiration pathway.
Correct Answer is C
Explanation
A. G1 (gap 1):During G1, the cell grows and performs normal metabolic activities. Organelles are duplicated, but DNA replication does not occur in this phase.
B. G2 (gap 2):G2 follows DNA synthesis and involves further cell growth and preparation for mitosis, including the production of proteins needed for cell division. DNA replication has already been completed by this point.
C. S (synthesis):The S phase is dedicated to DNA replication. Each chromosome is duplicated to ensure that the resulting daughter cells receive an identical copy of the genetic material.
D. metaphase:Metaphase is a stage of mitosis, not interphase. During metaphase, replicated chromosomes align at the cell’s equatorial plane in preparation for separation.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.