Does glycolysis occur in plant cells?

Where  does glycolysis occur or take place in cell?

Glycolysis occurrs in cytoplasm while many other cellular reaction take place in mitochondria.
But this answer is not always true.
In some cases, Glycolysis occurs in different location in different species.
For example,
In protozoa like trypanosoma brucei, the glycolysis process take place in glycosome. The glycosome is a membrane bound organelle of cytoplasm.
In plant the the glycolysis process take place in cytosol and plastid.
In some plants and protists, the glycolysis process take place in mitochondria.
In some cases, several enzymes of glycolytic pathways interact with mitochondrial membrane in chlamydomonas, human and even yeast.

The purpose of glycolysis is to breakdown glucose to get cellular energy in the chemical form of ATP. Although it produces only two molecule of ATP.
Glycolysis means the breakdown of glucose.
Glycolysis is the first and central pathway for cellular respiration in most cell like animal cells, plant cells, and microbial cells.
The steps of glycolysis occurs in cytoplasm of the cell.
And the rest of pathways of cellular respiration like krebs cycle and election transport system occur in mitochondria.
Living organisms like animals, plants, and microbes require energy to carry out their metabolic function. Cellular respiration is the process that produce energy (called ATP) and Carbon dioxide either in aerobic conditions or in anaerobic condition.

Glycolysis occurs in cytosol of cytoplasm. Because glucose and enzymes involved in glycolytic pathway are found in cytosol at higher concentration. Moreover, all the chemical reactions require the supply of cellular energy before the reaction can start.
Glycolysis use a little amount of energy to proceed, and give back few energy to the cells.
That’s, you know 10 steps of glycolysis process occurs in two phases. In first phase of the glycolysis process, 2 molecules of ATPs (cellular energy) are used to break down sugar.
But the second phase of glycolysis process produces 4 molecules of ATPs.

Glycolysis is the process in which one glucose molecule is broken down to form two molecules of pyruvic acid (also called pyruvate). The glycolysis process is a multi-step metabolic pathway that occurs in the cytoplasm of animal cells, plant cells, and the cells of microorganisms. At least six enzymes operate in the metabolic pathway.

In the first and third steps of the pathway, ATP energizes the molecules. Thus, two ATP molecules must be expended in the process. Further along in the process, the six-carbon glucose molecule converts into intermediary compounds and is then split into two three-carbon compounds. The latter undergo additional conversions and eventually form pyruvic acid at the conclusion of the process.

During the latter stages of glycolysis, four ATP molecules are synthesized using the energy given off during the chemical reactions. Thus, four ATP molecules are synthesized and two ATP molecules are used during glycolysis, for a net gain of two ATP molecules.

Figure 6-1     An overview of cellular respiration.

Another reaction during glycolysis yields enough energy to convert NAD to NADH (plus a hydrogen ion). The reduced coenzyme (NADH) will later be used in the electron transport system, and its energy will be released. During glycolysis, two NADH molecules are produced.

Because glycolysis does not require oxygen, the process is considered to be anaerobic. For certain anaerobic organisms, such as some bacteria and fermentation yeasts, glycolysis is the sole source of energy.

Glycolysis is a somewhat inefficient process because much of the cellular energy remains in the two molecules of pyruvic acid that are created. Interestingly, this process is somewhat similar to a reversal of photosynthesis (see Chapter 5).