Cellular Respiration (1.18)

SBI3C Name: ______

Cellular Respiration (1.18)

Organisms like humans need to be able to transfer the energy from the foods we eat (carbohydrates, lipids, proteins) to energy that our cells can use (ATP).

Even organisms that make their own food (autotrophs) need to be able to transfer the energy from the glucose they produce through photosynthesis to energy that the cells can use, ATP.

The process of transferring energy from glucose (and other macromolecules) is called ______

______.

There are two types of cellular respiration:

Aerobic Cellular Respiration / Anaerobic Cellular Respiration
-uses ______/ -does not use ______
-produces ______amounts of ATP / -produces ______amounts of ATP

SBI3C Name: ______

Cellular Respiration (1.18)

Organisms like humans need to be able to transfer the energy from the foods we eat (carbohydrates, lipids, proteins) to energy that our cells can use (ATP).

Even organisms that make their own food (autotrophs) need to be able to transfer the energy from the glucose they produce through photosynthesis to energy that the cells can use, ATP.

The process of transferring energy from glucose (and other macromolecules) is called ______

______.

There are two types of cellular respiration:

Aerobic Cellular Respiration / Anaerobic Cellular Respiration
-uses ______/ -does not use ______
-produces ______amounts of ATP / -produces ______amounts of ATP

Aerobic Cellular Respiration:

The overall chemical equation for aerobic cellular respiration is:

C6H12O6 + 6 O2 + 36 ADP ---> 6 CO2 + 6 H2O + 36 ATP

glucose + oxygen + 36 ADP ---> carbon dioxide + water + 36 ATP

Most of the ATP is produced in the ______, which is why it is called the "powerhouse" of the cell.

Anaerobic Cellular Respiration:

The ATP generated in anaerobic cellular respiration results from the splitting of glucose into 2 pyruvate:

C6H12O6 + 2 ADP ---> 2 C3H6O3 + 2 ATP

glucose + 2 ADP ---> 2 pyruvate + 2 ATP

In ______fermentation, the pyruvate is converted to ethanol (an alcohol) and carbon dioxide. Ethanol fermentation by yeast cells is used commercially to produce products like greads, wine, beer, liquor, and soy sauce.

In ______fermentation, the pyruvate is converted to lactate (lactic acid). This occurs in our muscle cells when we have been exercising too strenuously. The lactic acid makes our muscles feel stiff, sore, and tired.