Select true or false for the following statements:

Question

During cellular respiration, first a molecule of glucose must be split to produce two small molecules. This step is called glycolysis.
Cells without mitochondria cannot break down glucose for energy.
During Cellular Respiration energy is kept when glucose, a sugar, is broken down.
Water forms as a waste product during the second stage of cellular respiration.
The final stage of cellular respiration is called electron transport.

Answer 1

1. True - Glycolysis is the first step of cellular respiration, where a molecule of glucose is split to produce two smaller molecules (pyruvate).
2. False - Even cells without mitochondria (like some prokaryotes) can break down glucose for energy through glycolysis, which occurs in the cytoplasm.
3. False - Energy is not kept; rather, it is released when glucose is broken down during cellular respiration.
4. True - Water is formed as a waste product during the electron transport chain, which is part of the second stage of cellular respiration.
5. True - The final stage of cellular respiration is indeed called electron transport (or electron transport chain).