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Where does glycolysis occur in eukaryotes?

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Quick Answer

In both eukaryotes and prokaryotes, glycolysis occurs in the cytoplasm of the cell. Glycolysis is the first step of cellular respiration, which has 10 steps in all.

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Full Answer

Glycolysis is the first stage in cellular metabolism, breaking glucose down into pyruvates. Pyruvates are then able to further metabolize through fermentation or aerobic respiration. Because glycolysis does not require oxygen, it can occur in aerobic organisms as well as anaerobic. This process involves 10 steps and also occurs in plant cells, the cells of microorganisms and animal cells. For bacteria, this process is the only source of energy. The remaining processes of cellular respiration are carried out in the mitochondria.

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  • Q:

    What are the similarities and differences between eukaryotic cells and prokaryotic cells?

    A:

    The distinction between prokaryotes and eukaryotes is the deepest division in the realm of life on Earth. Together, they include every life form ever discovered. Though the two groups share a common ancestry, there are basic differences between them. Eukaryotes have nucleated cells and identifiable cell structures called organelles, while prokaryotes are more variable in their cellular structure and lack a discrete nucleus, according to About.com.

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  • Q:

    Does glycolysis require oxygen?

    A:

    Glycolysis takes place in the cell's cytoplasm and can occur with or without oxygen. However, without oxygen present, the glycolysis phase of cellular respiration doesn't produce additional adenosine triphosphate, or ATP.

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  • Q:

    Where in the cell does glycolysis occur?

    A:

    Glycolysis occurs in the cytosol (cytoplasm) of the cell. Glycolysis is the first of the three metabolic processes that make up cellular respiration. Cellular respiration produces the adenosine triphosphate, or ATP, used by cells for energy.

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  • Q:

    What is anaerobic glycolysis?

    A:

    Anaerobic glycolysis is a metabolic process in which glucose is transformed to lactate. The process occurs when energy is required in the absence of oxygen. Anaerobic glycolysis is essential for tissues with insufficient oxygen supply and high-energy requirements.

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