Review and correct these plant cell functions: Phloem (mineral salts), Cambium (growth), Companion (metabolic support), Sieve tube (food transport), Parenchyma (photosynthesis/storage), Collenchyma (s

Here's a review of the functions you've listed:

1. Phloem Cells:

   • ❌ Incorrect. Phloem cells primarily transport manufactured food (sugars) from the leaves to other parts of the plant. They do not transport mineral salts; that is the function of xylem.
   • ✅ Correct. They transport manufactured food.

2. Cambium Cells:

   • ✅ Correct. Cambium cells are responsible for producing new xylem and phloem, contributing to the growth in girth (width) of stems and roots, and the formation of wood and bark.

3. Companion Cells:

   • ✅ Correct. Companion cells provide metabolic support to the sieve tube elements, which lack a nucleus and many organelles. They assist in loading and unloading sugars and regulating phloem activity.

4. Sieve Tube Elements:

   • ✅ Correct. Sieve tube elements are the main conducting cells of the phloem, facilitating the efficient translocation (transport) of manufactured food throughout the plant.

5. Parenchyma:

   • ✅ Correct. Parenchyma cells are versatile; some contain chloroplasts (chlorenchyma) and perform photosynthesis, while others are involved in storage of food and water.

6. Collenchyma Cells:

   • ✅ Correct. Collenchyma cells provide flexible support to young, growing parts of the plant, such as stems and petioles, and help prevent tearing.

7. Sclerenchyma Cells:

   • ✅ Correct. Sclerenchyma cells provide strong, rigid support to mature plant parts due to their thick, lignified cell walls.
   • ❌ Incorrect. Sclerenchyma cells do not form "connective tissue." Connective tissue is a term used in animal biology.

8. Auxins:

   • ✅ Correct. Auxins are plant hormones that promote cell elongation in shoots and play a crucial role in root initiation and development.