Bio Assessment 03/06/2025

Cellular Respiration

The process by which cells convert glucose and oxygen into energy, water, and carbon dioxide.

Homeostasis

The ability of an organism to maintain a stable internal environment despite external changes.

Feedback mechanisms

Processes that use the conditions of one component of a system to regulate the function of another component.

Positive Feedback

A feedback mechanism where a response amplifies the initial stimulus, such as oxytocin during childbirth.

Negative Feedback

A feedback mechanism that counteracts changes to maintain stability, such as regulating body temperature.

Anaerobic Respiration

Respiration that occurs in the absence of oxygen, producing lactic acid or alcohol and carbon dioxide.

Aerobic Respiration

Respiration that occurs in the presence of oxygen, producing carbon dioxide, water, and ATP.

ATP (Adenosine Triphosphate)

The energy currency of the cell, used for various cellular processes.

Gas Exchange Inputs

Glucose and oxygen are the necessary inputs for cellular respiration.

Regulation of Blood-Glucose Levels

Controlled by hormones like insulin (lowers glucose) and glucagon (raises glucose) to maintain energy stability.

Effects of Exercise on Homeostasis

Increased heart rate and breathing supply more oxygen and nutrients to muscles during physical activity.

Veins and Arteries

Arteries transport oxygen-rich blood to the body; veins return oxygen-poor blood to the heart.