Which type of tissue is responsible for the movement of nutrients in some plants?

The correct choice is phloem, which is responsible for the transport of nutrients, especially sugars produced through photosynthesis, throughout a plant. This type of vascular tissue functions primarily in the movement of organic nutrients from the leaves (where photosynthesis occurs) to other parts of the plant, such as roots, stems, and fruits.

Phloem is composed of living cells, including sieve elements and companion cells, which work together to facilitate the flow of nutrients. The movement through phloem occurs in a process known as translocation, where sugars are actively transported and then diffused to areas of the plant that require energy for growth and development.

The other types of tissues mentioned serve different functions: xylem is primarily involved in transporting water and minerals from the roots to the rest of the plant; meristem is responsible for the growth of new cells and tissues; and parenchyma serves various roles, including storage and metabolism, but does not specifically transport nutrients in the way phloem does.