Photosynthesis, Cellular Respiration, and Bioenergetics Study Guide

A set of vocabulary flashcards covering key concepts related to photosynthesis, cellular respiration, and the cycling of matter in ecosystems.

Photosynthesis

The process by which plants use sunlight, carbon dioxide, and water to produce glucose and oxygen.

Cellular Respiration

The process in which cells convert glucose and oxygen into carbon dioxide, water, and ATP, the usable form of energy.

Autotroph

Organisms that can produce their own food through photosynthesis.

Heterotroph

Organisms that cannot produce their own food and rely on other organisms for nutrients.

Balanced Chemical Equation for Photosynthesis

6H2O + 6CO2 + Solar Energy → C6H12O6 + 6O2.

Balanced Chemical Equation for Cellular Respiration

C6H12O6 + 6O2 → 6H2O + 6CO2 + ATP.

ATP (Adenosine Triphosphate)

The primary molecule for storing and transferring energy in cells.

Gas Exchange

The process by which plants and animals exchange oxygen and carbon dioxide; plants release oxygen and take in carbon dioxide, while animals do the opposite.

Combustion

The process of burning fossil fuels that increases atmospheric carbon dioxide levels.

Decomposition

The breakdown of dead organic matter, releasing carbon dioxide back into the atmosphere.

Deforestation

The removal of trees, which decreases photosynthesis, resulting in higher levels of atmospheric carbon dioxide.