Which one of the following best indicates what a nucleoside diphosphate kinase does?
Hint: Since it is a kinase, it is adding a phosphate; the name further indicates that a nucleoside diphosphate is the substrate for this kinase.

Question

BlackTom AI · Accepted Answer

The question asks what a nucleoside diphosphate kinase does, prompting us to recall its role in transferring phosphate groups and the substrate involved.
First, consider the hint: as a kinase, it adds a phosphate group. The substrate, as indicated by the name, is a nucleoside diphosphate (NDP). This frames the expected reaction mechanism: phosphoryl transfer to an NDP to form a nucleoside triphosphate (NTP).
Option assessment: 'adds a phosphate to the terminal phosphate of an NDP.' This description correctly captures the core action: the enzyme transfers a phosphate group to the diphosphate (the terminal phosphate) to generate an NTP. This aligns with the typical mechanism of nucleoside diphosphate kinases, which catalyze the exchange or transfer of phosphate between NDPs and ATP or from ATP to NDP, effectively converting NDP to NTP by adding a phosphate.
If there were alternative choices, we would evaluate them for potential misconceptions, such as suggesting the enzyme removes phosphate groups, acts on nucleoside triphosphates instead of diphosphates, or targets other substrates like proteins or sugars. However, given the provided option focuses on adding a phosphate to the NDP and the hint reinforces that interpretation, that option remains consistent with the known function of NDK.
In summary, the described action—increasing the phosphorylation state of an NDP by adding a phosphate to its terminal phosphate—is consistent with nucleoside diphosphate kinase activity and with its role in maintaining cellular NTP/NDP balance.

BIOL3611.13541.202610 InClassQuizChapter 15

Which one of the following best indicates what a nucleoside diphosphate kinase does? Hint: Since it is a kinase, it is adding a phosphate; the name further indicates that a nucleoside diphosphate is the substrate for this kinase.

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