Bacteria, like the lactobacillus acidophilus use sugar as an energy source for anaerobic cellular respiration. this process produces much less atp than aerobic respiration and does not produce carbon dioxide as a by-product. it does, however, give yogurt its sour taste and prevents other food spoiling bacteria from developing. this is a description of a) phosphorylation. b) alcohol fermentation. c) lactic acid fermentation. d) the electron transport system.

Answer is C)lactic acid fermentation.

Lactic acid fermentation is a metabolic process by which sugar is converted into cellular energy and lactate or lactic acid in solution. No carbon dioxide is evolve in the process. This conversion is done by lactobacillus bacteria in absence of oxygen. The bacteria that make yogurt carry out lactic acid fermentation.

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle

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