The above reaction represents:

Question

BlackTom AI · Accepted Answer

Question: The above reaction represents:

Option 1: A ligation reaction, a repeated type of reaction that happens during metabolism
This is not a ligation reaction. Ligation typically refers to joining two molecules together (often with the formation of a new bond) and is common in processes like DNA ligation or peptide bond formation. In the depicted pathway, a carboxyl group is added to pyruvate with consumption of ATP and release of ADP and Pi; no direct joining of two large molecules is shown. Therefore this option is not correct.

Option 2: None of the answers are correct
There is a valid broad interpretation of the reaction: it is a metabolic transformation involving ATP, CO2, and pyruvate to form oxaloacetate. Although the answer choices are imperfect, at least one describes a real metabolic process, so this option would be overly dismissive.

Option 3: A hydrolytic reaction, commonly used to break down proteins and others during metabolism
Hydrolysis involves the breaking of bonds by the addition of water. In this scheme, water is consumed, but the key step is the carboxylation (adding a carboxyl group from CO2) aided by ATP, not hydrolysis of a substrate. Therefore this is not a hydrolytic reaction.

Option 4: A common reaction that happens during metabolism
This reaction depicts the carboxylation of pyruvate to oxaloacetate, a known metabolic step (pyruvate carboxylase activity) that occurs in processes like gluconeogenesis. It involves ATP and CO2, leading to oxaloacetate and inorganic products (ADP, Pi, H+). While the wording is broad, it accurately places the reaction within metabolism and is the closest correct characterization among the choices.

In summary, the reaction is not a ligation or hydrolysis, and while “None of the answers are correct” could be tempting, the correct metabolic context is best captured by option 4: a common reaction that happens during metabolism. The other options misclassify the chemical nature of the transformation or ignore its metabolic context.

BIOL3611.13541.202610 FA2IndFA2025- Requires Respondus LockDown Browser

The above reaction represents:

View Explanation

Log in for full answers

Similar Questions

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler