C1.2 - Cell Respiration Flashcards
How does yeast contribute to baking?
Yeast performs alcoholic fermentation, producing carbon dioxide that causes dough to rise.
What is anaerobic respiration?
A form of respiration that occurs in the absence of oxygen and is less efficient than aerobic respiration.
What is the equation for lactic acid fermentation?
glucose —-glycolysis—–> 2 pyruvate —-fermentation—-> 2 lactic acid
What are the two main types of cell respiration?
Aerobic and anaerobic respiration.
What are some cellular processes that use ATP?
Muscle contraction, nerve impulse transmission, biosynthesis, and active transport.
What is the universal energy currency in cells?
Adenosine triphosphate (ATP).
What are the key components of a respirometer?
A sealed chamber, a manometer, and a CO2 absorber.
What is a respirometer?
A device used to measure the rate of respiration in small organisms or tissues.
What is the first step in measuring respiration rates using a respirometer?
Place the organism in the respirometer chamber.
What is the purpose of adding a CO2 absorber in a respirometer?
To remove any CO2 produced during respiration.
What happens when ATP is hydrolyzed?
It is converted to ADP and releases energy.
What is the general equation for aerobic respiration?
C₆H₁₂O₆+6O₂ → 6CO₂ + 6H₂O + Energy (ATP)
How much ATP is typically produced from one glucose molecule during aerobic respiration?
Around 38 ATP molecules.
What are the two main types of anaerobic respiration?
Alcoholic fermentation and lactic acid fermentation.
What is aerobic respiration?
The most efficient form of cellular respiration that requires oxygen to completely break down glucose.
