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The two Major Phases of Glycolysis are:-
1. Preparatory Phase:
The first five steps are regarded as the preparatory (or investment) phase, since they consume energy to convert the glucose into two three-carbon sugar phosphates (G3P).
2. Pay-off Phase:
The second half of glycolysis is known as the pay-off phase, characterised by a net gain of the energy-rich molecules ATP and NADH. Since glucose leads to two triose sugars in the preparatory phase, each reaction in the pay-off phase occurs twice per glucose molecule. This yields 2 NADH molecules and 4 ATP molecules, leading to a net gain of 2 NADH molecules and 2 ATP molecules from the glycolytic pathway per glucose
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∙ 12y ago
Wiki User
∙ 8y agoThe first phase of photosynthesis is the Light-Dependent Phase, the second phase is the Light-Independent Phase.
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∙ 15y agoLight phase - needs light Dark phase - does not need light
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∙ 12y agoDav delaney <3 jo embry
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What is the efficiency of glycolysis?
2%
During glycolysis ATP is produced how many net molecules are formed?
Glycolysis produces 2 pyruvate, 2 NADH, and 2 ATP [net]
What is meant by a net gain of two ATP molecules from glycolysis?
2 ATP
What are the advantages and disadvantages of glycolysis?
Glycolysis produces large quantities of NADH producing large amounts of energy. Glycolysis can also be carried out throughout the cell, which gives it an advantage over the TCA and Oxidative phosphorylation cycles that occur in the mitochondria. (:
During glycolysis NAD is converted to what?
This is the Glycolysis pathway Glycolysis (the breakdown of glucose to pyruvate and lactate, occurs in the cell cytoplasm): Glucose + 2 ATP + 4 ADP + 2 NAD -> 2 Pyruvate + 2 ADP + 4 ATP + 2 NADH + energy. Oxidation of glucose is known as glycolysis. Glucose is oxidized to either lactate or pyruvate. Under aerobic conditions, the dominant product in most tissues is pyruvate and the pathway is known as aerobic glycolysis. When oxygen is depleted, as for instance during prolonged vigorous exercise, the dominant glycolytic product in many tissues is lactate and the process is known as anaerobic glycolysis. "These studies demonstrate that orderly glycolysis in the erythrocyte is regulated by the NAD-to-NADH ratio and also provide a method that makes possible the in vitro study of erythrocyte glycolysis." The conversion of pyruvate to lactate, under anaerobic conditions, provides the cell with a mechanism for the oxidation of NADH (produced during the G3PDH reaction) to NAD which occurs during the LDH catalyzed reaction. This reduction is required since NAD is a necessary substrate for G3PDH, without which glycolysis will cease. Normally, during aerobic glycolysis the electrons of cytoplasmic NADH are transferred to mitochondrial carriers of the oxidative phosphorylation pathway generating a continuous pool of cytoplasmic NAD NADH
What are the phases of cellular respiration?
they 3 phases of cellular respiration are glycolosis, electron transport chain, and the Calvin cycle
What is the 2 major phases of digestion?
melanie
How many total phases are in cellular respiration?
3: Glycolysis, Kreb's, ETC
4 phases in aerobic cellular respiration?
The four phases in aerobic cellular respiration are: 1. Glycolysis 2. Krebs cycle 3. oxidative phosphorylation 4. Electron transport chain (ETC)
What are the products o the glycolysis reaction?
Major products: 2 * pyruvate 2 * ATP 2 * NADH
What are all the phases of respiration?
glycolysis, Krebs cycle, electron transport chain, ATP synthase
What are the 2 major phases of mining?
1. dig a hole; 2. extract the minerals.
What happen to ATP during glycolysis?
During glycolysis, more ATP is produced than is used Glycolysis - occurs in the cytosol begins the degradation process by breaking glucose into two molecules of pyruvate. Glucose is a six carbon sugar, and it becomes split up into two three carbon sugars. Glycolysis has two phases, energy investment and energy payoff. In order to begin glycolysis, the cell must spend two ATP molecules. Directly from glycolysis, 4 ATP are made. Once the cell is paid back for its loss of two ATP's, the net gain of glycolysis can be said to be 2 ATP. Along with making ATP, the cell also makes 2 NADH
Is water a product of glycolysis?
Water is not a product of glycolysis. Glycolysis produces 2 molecules of pyruvate, 2 molecules of NADH, and also 2 molecules of ATP.
What are the three phases of the cellular respiraton process?
A. Glycolysis B. The Krebs Cycle C. ETC (electron transport chain)
What does the glyoclysis phase do that other phases do not do?
Glycolysis is the only phase that occurs in the cytoplasm, that does not require oxygen and that directly yields ATP.
Which of the following is true of glycolysis?
While 2 net ATP are created in glycolysis, there also is a requirement of 2 ATP initially for glycolysis to take place
