Graded A+
What is the primary source of energy for most life forms on Earth?
✔✔ The primary source of energy for most life forms on Earth is the sun.
How is energy stored in cells?
✔✔ Energy is stored in cells primarily in the form of adenosine triphosphate (ATP).
What is the role of ATP in cellular processes?
✔✔ ATP provides energy for various cellular processes by releasing a phosphate group to form
adenosine diphosphate (ADP).
What is cellular respiration?
✔✔ Cellular respiration is the process by which cells convert glucose and oxygen into ATP,
carbon dioxide, and water.
What are the three main stages of cellular respiration?
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, ✔✔ The three main stages of cellular respiration are glycolysis, the citric acid cycle (Krebs
cycle), and oxidative phosphorylation.
How does glycolysis contribute to cellular respiration?
✔✔ Glycolysis breaks down glucose into pyruvate, producing a small amount of ATP and
NADH, which are used in later stages of cellular respiration.
What is the function of the mitochondria in energy production?
✔✔ The mitochondria are responsible for producing ATP through the process of cellular
respiration.
What is the difference between aerobic and anaerobic respiration?
✔✔ Aerobic respiration requires oxygen and produces a large amount of ATP, while anaerobic
respiration occurs without oxygen and produces less ATP along with different byproducts.
What is fermentation, and when does it occur?
✔✔ Fermentation is a process that occurs when oxygen is not available, allowing cells to
produce ATP through the partial breakdown of glucose.
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