Question at position 25 What role does Vitamin A play in bone growth and remodeling?It assists with protein synthesis.It stimulates osteoblast activity.It aids in calcitriol production.It helps synthesize collagen.

Question

BlackTom AI · Accepted Answer

To start, let's consider what each option says about Vitamin A's role in bone growth and remodeling.
Option 1: 'It assists with protein synthesis.' While protein synthesis is essential for many cellular processes, this phrasing is too general and does not specify a direct, unique role of Vitamin A in bone biology. Other nutrients and vitamins are more directly linked to broad protein synthesis pathways rather than bone-specific remodeling.
Option 2: 'It stimulates osteoblast activity.' This aligns with the known role of Vitamin A in bone biology, where retinol/retinoic acid signaling can influence osteoblast function and bone formation. The stimulation of osteoblasts is a plausible mechanism by which Vitamin A supports bone growth and remodeling, especially when balanced properly with other nutrients.
Option 3: 'It aids in calcitriol production.' Calcitriol is the hormonally active form of Vitamin D, not Vitamin A. This statement incorrectly assigns a Vitamin D-activating role to Vitamin A, which contradicts established vitamin-specific pathways and is therefore inaccurate.
Option 4: 'It helps synthesize collagen.' Collagen synthesis is a key function of osteoblasts and is influenced by several factors, including Vitamin C and other signaling pathways. While collagen is a major component of the bone matrix, stating that Vitamin A directly synthesizes collagen overclaims Vitamin A's role and is not the primary mechanism described in bone remodeling literature.
In summary, among the options, the statement that best reflects a direct, specific role of Vitamin A in bone growth and remodeling is that it stimulates osteoblast activity, whereas the other choices describe more general processes or mix up vitamin-specific pathways.

Question at position 25 What role does Vitamin A play in bone growth and remodeling?It assists with protein synthesis.It stimulates osteoblast activity.It aids in calcitriol production.It helps synthesize collagen.单项选择题

类似问题

True or False: Osteoblasts are responsible for building new bone tissue, while osteoclasts break down bone and release calcium (Ca²⁺) into the bloodstream.

What effect do gravity and muscle tension have on bone?

Which type of cells would be involved in bone remodeling in adults?

True or False: If osteoblasts are more active than osteoclasts in a given bone, the bone mass will decrease.

Why would running and jumping have a larger effect on bone health than walking?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单