The Iron of the Heme Unit of Hemoglobin Is Transported

question 8

Short Answer

The iron of the heme unit of hemoglobin is transported in the blood by the protein _________________ after the aged erythrocytes are phagocytized.

---

Definitions:

Tracheids

Long, thin cells found in the xylem of vascular plants, serving as basic water-conducting elements and structural support.

Vessel Elements

are elongated cells found in the xylem of plants, facilitating water transport.

Sclerenchyma Fibers

Thick-walled, rigid cells that provide structural support to plants, often found in stems, leaves, and roots.

Root Hairs

Small hair-like structures extending from a plant's root, increasing surface area for water and nutrient absorption.