Question

part iii: open - ended response answer the questions below. use additional paper if needed. 1. how do specialized cells within an organism help the organism perform the of life? 2. describe three functions of proteins. 3. what are the three main stages of protein synthesis?

Explanation:

1. Specialized cells have unique structures and functions. For example, red - blood cells carry oxygen, nerve cells transmit signals, and muscle cells enable movement. They work together to maintain life processes like respiration, circulation, and response to stimuli.
2. Proteins have multiple functions. Enzymatic proteins catalyze biochemical reactions, structural proteins like collagen provide support in tissues, and transport proteins such as hemoglobin carry substances in the body.
3. The three main stages of protein synthesis are transcription (DNA to mRNA), translation (mRNA to polypeptide chain), and post - translational modification (folding and chemical changes to form a functional protein).

Answer:

1. Specialized cells perform specific functions that contribute to the overall life - sustaining processes of an organism, such as oxygen transport, signal transmission, and movement.
2. Enzymatic activity (catalyzing reactions), structural support (forming tissues), and transport (carrying substances).
3. Transcription, translation, post - translational modification.