Question:

Glycolysis takes place in

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Glycolysis forms the basic process of our metabolism. The energy required in our body is generated via a long cascade.

Updated On: Aug 20, 2024
  • Mitochondria

  • Cytoplasm

  • Chloroplast

  • Lysosome

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The Correct Option is B

Approach Solution - 1

The correct answer is B) Glycolysis takes place in cytoplasm.

Glycolysis is the process of breaking down glucose into pyruvic acid leading to the production of ATP. The entire process of glycolysis takes place in the cytoplasm of the cell. 

  • Glycolysis is the common pathway for aerobic and anaerobic respiration
  • It is a ten-step reaction that converts a molecule of glucose into 2 molecules of pyruvic acid. 
  • The net gain of energy in the whole process is 2 molecules of ATP
  • Glycolysis is also termed an EMP pathway named after scientists Embden, Meyerhoff, and Parnas.
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Approach Solution -2

Hint: Glycolysis forms the basic process of our metabolism. The energy required in our body is generated via a long cascade. It was introduced by Harden and William Young.

Complete answer:

Glycolysis is the process of conversion of glucose to simpler forms that is two molecules of pyruvate or pyruvic acid. It is an anaerobic pathway that is of ten steps. It utilizes energy in the first half and produces ATP in the second half. It is an enzyme-catalyzed process. Any form of monosaccharide can be converted and reduced.

It has two phases - 

  1. The preparatory phase - It is an investment phase that consumes energy to convert glucose into three-carbon compounds. There are various enzymes like hexokinase, isomerases, etc.
  2. The payoff phase - This phase is the net gain of ATP and NADH. This occurs twice to treat the two three-molecule sugar compounds. It gives us 4 ATP and 2 NADH at the end producing pyruvic acid.

It takes place in the cytoplasm.

Hence, the correct answer is option (B) Cytoplasm

Note: It is the fastest process of producing ATP or energy. Glycolysis initiates in the cytoplasm of the cell but is completed in the mitochondria. It occurs in both prokaryotes and eukaryotes. It can occur both aerobically and anaerobically.

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Approach Solution -3

Glycolysis is a metabolic process that helps to break down glucose molecules for the release of energy. In both the prokaryotic as well as eukaryotic cells, the process of glycolysis occurs in the cytoplasm. This process is anaerobic as it does not require any oxygen.

Glycolysis is one of the primary metabolic pathways which includes cellular respiration that results in the formation of ATP which is a kind of energy. This process is executed in two distinct phases via a series of enzymatic reactions, thus cleaving a molecule of glucose (a six-carbon ring molecule) into pyruvate (a three-carbon molecule). Energy consumption takes place in the first phase of glycolysis while in the second phase; the formation of pyruvate molecules takes place thereby producing ATP and NADH as a source of energy. After glycolysis, cells undergo the Krebs cycle for the production of further ATP molecules to meet the energy requirement of a cell.

On the other hand, the Krebs cycle occurs in the mitochondrial matrix of the eukaryotic cells while on rough ER, synthesis, and export of protein are processed. Moreover, granum has a role in photosynthetic reactions.

 Hence, the correct answer is option (B).

 

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Approach Solution -4

Glycolysis is the metabolic pathway that takes place in the cytoplasm to oxidize glucose associated with hydrogen ions.

 Glycolysis turns glucose into pyruvate to produce adenosine triphosphate.

 It consists of monosaccharides and fructose as an intermediate in the whole process.

 The pentose phosphate pathway, which begins with the dehydrogenation of glucose-6-phosphate, the main middle of the path to be created by glycolysis, produces different pentoses and NADPH for the bond of unsaturated fats and cholesterol.

 Glycogen fusion likewise starts with glucose-6-phosphate toward the start of the glycolytic pathway.

The correct option is (B) cytoplasm.

 

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Concepts Used:

Respiration in Plants

Respiration in plants is a process that entails the production of energy in plants. This process can simply be described as the intake of Oxygen and the release of Carbon Dioxide as an outcome of the oxidation of complex organic compounds. Though plants do not have any specific organ to balance the process of respiration, their stems, roots, and leaves do this work at a very low rate than other living beings. The process of respiration is very crucial for the plants to sustain the growth of the plant tissues.

This process can be stated as-

\[C_6H_{12}O_6 + 6O_2 → 6CO_2 + 6H_2O + \text{Energy}\]