A) Outline the chemical transformations that occur in glycolysis and identify which of these steps are the most and the least energetically favorable. B) How are the thermodynamically unfavorable steps overcome in the glycolytic pathway? C) Arsenate structurally resembles and mechanistically reacts similarly to phosphate as shown in the scheme below. However, arsenate esters are much less stable than phosphate esters and rapidly hydrolyze at neutral pH. How do you expect this will affect the glycolytic pathway?
Added by Patricia H.
Close
Step 1
Step 1: Glucose is converted to glucose-6-phosphate (GGP) in the first step of glycolysis through the enzyme hexokinase, which requires the input of one ATP molecule to proceed. Show more…
Show all steps
Your feedback will help us improve your experience
Josee Pacheco and 93 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Drag and drop each pathway descriptor to distinguish the glycolytic pathways below, then characterize each pathway by aligning with the statement that connects it to another. Entner-Doudorof Pentose-phosphate Embden-Meyerhof Glyceraldehyde-3-P from all three glycolytic pathways can be further oxidized to pyruvate by the enzymes of this pathway The glyceraldehyde-3-P produced via 6-phosphogluconate is further oxidized by the Embden-Meyerhof pathway 6-phosphogluconate is decarboxylated and several intermediates enter the Embden-Meyerhof pathway. Glucose ATP ADP Glucose 6-phosphate NADP+ NADPH + H+ 6-phosphogluconate H2O 2-keto-3-deoxy-6-phosphogluconate (KDPG) Pyruvate Glyceraldehyde 3-phosphate 6 C phase 3 C phase Reset
Marlyn J.
1. What is the purpose of the glycolytic pathway only, include how many ATPS are produced and what reactions are involved in the production of ATP in glycolysis only. Where does glycolysis occur in the cells? 2. What two rules apply in the glycolytic pathway in the breakdown of glucose to pyruvic acid and give examples.
Indrajeet M.
In the glycolytic pathway, a six-carbon sugar (fructose $1,6-$ bisphosphate) is cleaved to form two three-carbon sugars, which undergo further metabolism (see Fig. $14-6$ ). In this pathway, an isomerization of glucose 6 -phosphate to fructose 6 -phosphate (shown below) occurs two steps before the cleavage reaction (the intervening step is phosphorylation of fructose 6 -phosphate to fructose 1,6 -bisphosphate (p.539)?(FIGURE CAN'T COPY) What does the isomerization step accomplish from a chemical perspective? (Hint: Consider what might happen if the $\mathrm{C}$ - $\mathrm{C}$ bond cleavage were to proceed without the preceding isomerization.)
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD