Why is the colon not an example of an excretory organ?

In general, why is it important that carbon dioxide and nitrogenous wastes are excreted from the body?

What will happen if carbon dioxide is allowed to accumulate?

What are the symptoms of respiratory acidosis?

How does the body respond to increased carbon dioxide concentration?

The Western diet is high in protein meaning we consume more than necessary, what happens to the excess protein we consume?

Why is the amino group removed?

Describe the process in which the amino acid is removed.

What is the use of the products of deamination?

Describe the process where ammonia converted into urea?