A Boat Floating in a Large Pool Is Loaded with Wood

question 10

Multiple Choice

A boat floating in a large pool is loaded with wood blocks. The water level at the pool's edge is marked with a red line. The blocks are now thrown overboard and float outside the boat. When the water becomes calm again,

• A) the red line is slightly lower than the water level.
• B) the red line is slightly higher than the water level.
• C) the red line is still at the water level.

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Definitions:

Electron Transport Chain

A sequence of complexes involved in moving electrons from donors to acceptors through redox processes, while simultaneously moving protons across a membrane to produce ATP.

Citric Acid Cycle

A series of chemical reactions used by all aerobic organisms to release stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and chemical energy.

ATP Generation

The process by which adenosine triphosphate (ATP), the cell's energy currency, is produced, commonly through cellular respiration or photosynthesis.

Lactate

A compound produced during anaerobic metabolism, often associated with muscle fatigue.