Unit 2 CFA #3 (5.1, 5.2)

Front

What is aerobic cellular respiration?

Back

A process of energy conversion that releases energy from food in the presence of oxygen, forming new compounds.

Front

What is the Krebs Cycle?

Back

The Krebs Cycle is the innermost compartment of a mitochondrion where pyruvic acid is broken down into carbon dioxide in a series of reactions.

Front

How does ATP function in cellular respiration?

Back

ATP acts as a 'currency' for energy transfers within a cell, storing energy and releasing it for cellular work.

Front

What is glycolysis?

Back

Glycolysis is the first stage of cellular respiration, literally meaning 'sugar splitting', where glucose is broken down into 2 molecules of pyruvic acid.

Front

What are the two main stages of cellular respiration that require oxygen?

Back

The Krebs cycle and electron transport.

Front

What is the difference between anaerobic and aerobic conditions?

Back

Anaerobic conditions occur without oxygen, while aerobic conditions require the presence of oxygen.

Front

What is the primary source of energy for animals?

Back

Animals get energy from food through the process of cellular respiration.

Front

What is the product of glycolysis when glucose is broken down?

Back

2 molecules of pyruvic acid (C3H4O3).

Front

What role does oxygen play in cellular respiration?

Back

Oxygen is required for the Krebs cycle and electron transport stages of cellular respiration.

Front

What is fermentation?

Back

Fermentation is an anaerobic process that allows for energy production without oxygen, often resulting in lactic acid or ethanol.