Which of the Following is a Similarity Between Xylem and Phloem

Question

Which of the following is a similarity between xylem and phloem transport?
A) Transpiration is required for both processes.
B) Many cells in both tissues have sieve plates.
C) Bulk flow of water is involved.
D) Expenditure of energy from ATP is required.

Accepted Answer

Both xylem and phloem involve bulk flow of substances, with xylem transporting water and minerals and phloem transporting sugars and other organic compounds. Both rely on pressure gradients for transport, with water moving from areas of high pressure to areas of low pressure in xylem and sugars moving from sources to sinks in phloem. However, there are some differences in the mechanisms of transport, such as the involvement of transpiration in xylem and the expenditure of energy from ATP in phloem. The presence of sieve plates is also a characteristic unique to phloem.