Question

Xylem in plants are responsible for transport of:

• A. water
• B. amino acids
• C. food
• D. oxygen

Answer 1

The correct option is A

water

Correct answer is option A

Explanation for correct option:

1. Xylem tissues include tracheids, xylem vessels, xylem fibers, and xylem parenchyma.
2. These serve in the transport of water and minerals.

Explanation for incorrect option:

Option B:

1. Transfer RNA (tRNA), a type of RNA, serves as carrier RNA.
2. It helps in the transport of amino acids from the cytoplasm to the mRNA bound to the ribosome where the protein is synthesized.

Option C:

1. Phloem tissues is a composed of four elements namely, sieve elements, companion cells, phloem fibers and phloem parenchyma
2. It helps in the translocation of organic nutrients and food

Option D:

1. The hemoglobin (Hb) molecule contains four polypeptide chains and four heme prosthetic groups.
2. It serves as a carrier of oxygen gas.

Final answer: Xylem in plants are responsible for the transport of water.