{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

Organisms obtain energy in a process called cellular respiration. The function of cellular respiration is to harvest electrons from carbon compounds, such as glucose, and use that energy to make ATP. ATP is used to provide energy for cells to do work.

The overall chemical equation for cellular respiration is:

C₆H₁₂O₆ + 6O₂ --> 6CO₂ + 6H₂O + energy (ATP)

Glucose and oxygen are used to create carbo dioxide, water, and energy for the cell in the form of ATP. The equation for cellular respiration is the opposite of the equation for photosynthesis.

Cellular respiration occurs in two main phases: glycolysis & aerobic respiration. The first phase, glycolysis, is an anaerobic process. Anaerobic processes do not require oxygen. Aerobic respiration includes the Krebs cycle and electron transport, both of which require oxygen.

Phase 1: Glycolysis

occurs in the cytoplasm of cells
Glucose (C₆H₁₂O₆) is broken down into: 2 molecules of pyruvate, 2 ATP, 2 NADH

Phase 2: Aerobic Respiration

Krebs cycle: occurs in mitochondria
Pyruvate is converted into Acetyl-CoA, then citric acid, then a 4 carbon compound.
That 4 carbon compound combines with acetyl-CoA to make more citric acid, and the cycle continues.
Carbon dioxide (CO₂) is a product of the Krebs cycle.
Electron transport chain: occurs in the mitochondria, NADH molecules & FADH₂ are used to make ATP, Oxygen is used to create water

1

Which of the following are the reactants (ingredients) of cellular respiration?

1

Which of the following are the products of cellular respiration?

1

Why is glycolysis an anaerobic process?

Glycolysis utilizes oxygen

Glycolysis does not use any oxygen

Glycolysis does not produce carbon dioxide

Glycolysis produces carbon dioxide

1

What are the products of the Krebs cycle? Select all that apply.

1

What is the importance of NADH and

These molecules are used as products in photosynthesis

These molecules are useless by-products

These molecules are recycled for use in glycolysis

These molecules are used in the electron transport chain

2

Draggable item		Corresponding Item
Aerobic		Does not use oxygen
Anaerobic		Uses oxygen

Cellular Respiration

Cellular Respiration

Which of the following are the reactants (ingredients) of cellular respiration?

Which of the following are the products of cellular respiration?

Why is glycolysis an anaerobic process?

What are the products of the Krebs cycle? Select all that apply.

What is the importance of NADH and

Which of the following are the reactants (ingredients) of cellular respiration?

Which of the following are the products of cellular respiration?

Why is glycolysis an anaerobic process?

What are the products of the Krebs cycle? Select all that apply.

What is the importance of NADH and