Lymph contain a variety of substances including proteins, salts, glucose, fat ,water and white blood cells . unlike your blood lymph does not contain any red blood cells normally however lymph contains less proteins than plasma

Introduction:
Lymph is a colorless fluid that circulates throughout the lymphatic system, which is responsible for removing waste and toxins from the body. It is similar to blood plasma, but it does not contain red blood cells or platelets. In this response, we will discuss the components of lymph and why it does not contain certain substances.

Components of Lymph:
Lymph is composed of water, electrolytes, and various substances that are transported by the lymphatic vessels. These substances include:

- Lymphocytes: These are specialized white blood cells that are responsible for fighting infections and diseases. They are the main component of the lymphatic system and are found in large quantities in lymph nodes.

- Macrophages: These are large white blood cells that engulf and digest foreign substances, such as bacteria, viruses, and other pathogens.

- Interstitial Fluid: This is the fluid that surrounds cells in the body and provides them with nutrients and oxygen.

- Waste Products: Lymph also contains waste products, such as dead cells and cellular debris, which are removed from the body by the lymphatic system.

Why Lymph does not contain Nutrients, Thrombocytes, Hormones and Leucocytes:
1. Nutrients:
Lymph does not contain nutrients because they are transported by the blood. The blood carries nutrients from the digestive system to the cells of the body, while lymph carries waste products away from the cells.

2. Thrombocytes:
Thrombocytes, also known as platelets, are responsible for blood clotting. They are not found in lymph because they are only present in the blood.

3. Hormones:
Hormones are chemical messengers that are produced by glands in the body. They are transported by the blood to target cells, where they regulate various functions. Hormones are not found in lymph because they are only present in the blood.

4. Leucocytes:
Leucocytes, also known as white blood cells, are responsible for fighting infections and diseases. They are present in large quantities in lymph nodes, but they are not found in the lymphatic vessels themselves because they are only present in the blood.

Conclusion:
In conclusion, lymph is a colorless fluid that contains lymphocytes, macrophages, interstitial fluid, and waste products. It does not contain nutrients, thrombocytes, hormones, or leucocytes because these substances are transported by the blood.