Which is false about nucleotide metabolism? In nucleotide degradation, free bases can be recycled by salvage pathways All the atoms in the nucleotide bases come from amino acids Nucleotide biosynthesis requires PRPP Nucleotide and amino acid pathways are intertwined
Added by Randy W.
Close
Step 1
Step 1: The statement "All the atoms in the nucleotide bases come from amino acids" is false. Show more…
Show all steps
Your feedback will help us improve your experience
Bryan Valdivia and 71 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
The nucleotide salvage pathway is designed to recover and re-use pyrimidine and purine bases when they are available. True False
Bryan V.
nucleotide synthesis forms nucleotide bases from component parts. are built from bicarbonate, aspartate, and ammonia and then added to PRPP. synthesis is more complex, and the base is assembled on In contrast, recycle nucleotides by incorporating free bases released by nucleic acid degradation.
Sri K.
Under starvation conditions, cells deaminate amino acids to produce carbon skeletons that enter the glycolytic pathway and the citric acid cycle to generate ATP. Nucleotides, on the other hand, are not broken down to yield energy. Select the statements that describe how cells metabolize nucleotides. Although nucleotides can be hydrolyzed to release purine or pyrimidine bases, most organisms lack the enzymes to further degrade the free bases. Instead, free purine and pyrimidine bases are secreted into the bloodstream. Nucleotides are hydrolyzed into ribose and nitrogenous bases. Purines are further metabolized to uric acid and pyrimidine degradation produces urea. Free bases from hydrolysis of nucleotides are further degraded into their amino acid precursors, glycine and aspartate. Free bases released from nucleotide degradation are often reused for nucleotide synthesis. Purine and pyrimidine bases released from hydrolysis of nucleotides are used in de novo synthesis of nucleotides.
Adi S.
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