which of the following allows a plant's vascular system to work as a transport system?
A. a plant's vascular system is made up of specialized cells that move around the plants as it grows.
B. a plant's vascular system is made up of specialized cells that are covered in a thick cell wall.
C. a plant's vascular system is made up of specialized cells that form straw-like tubes.
D. a plant's vascular system is made up of specialized cells that divide as the plant grows.
c
a
c
a
The correct answer is C.
To arrive at the answer, we need to understand the function of a plant's vascular system. The vascular system in plants transports water, nutrients, and sugars throughout the plant. Now let's analyze each option to determine which one allows the vascular system to function as a transport system:
Option A states that a plant's vascular system is made up of specialized cells that move around the plant as it grows. This statement is incorrect because plant cells do not move around the plant. They are fixed in place. Thus, option A is incorrect.
Option B suggests that a plant's vascular system is made up of specialized cells covered in a thick cell wall. While this is true, a thick cell wall itself does not enable the vascular system to function as a transport system. Therefore, option B is not the correct answer.
Option C states that a plant's vascular system is made up of specialized cells that form straw-like tubes. This statement is accurate. These straw-like tubes are known as xylem and phloem. The xylem transports water and minerals from the roots up to the rest of the plant, while the phloem transports sugars, hormones, and other organic molecules throughout the plant. These tubes are responsible for the transport function of the vascular system, making option C the correct answer.
Option D suggests that a plant's vascular system is made up of specialized cells that divide as the plant grows. Although cell division is essential for growth, it is not directly relevant to the transport function of the vascular system. Hence, option D is not the correct answer.
In summary, the option that best explains how a plant's vascular system works as a transport system is option C, which describes the formation of straw-like tubes composed of specialized cells (xylem and phloem).