Question

Transport of ________is NOT shared (or in common) during both aerobic respiration AND beta oxidation of lipids?

ATP, PYRUVATE, ELECTRONS, PROTONS

Which pair of pathways are regulated so they do not occur at the same time (to avoid futile cycle) by using different transporters?

GLYCOGEN SYNTHESIS AND DEGRADATION OF GLYCOGEN, LIPID SYNTHESIS & BETA OXIDATION, FERMENTATION & GLYCOLYSIS, GLUCONEOGENESIS AND GLYCOLYSIS

Which of the following citric acid cycle intermediates can make the amino acid aspartate if an amino group is added to it?

PYRUVATE, ALANINE, OXALOACETATE, ALPHA KETOGLUTARATE

Which molecue does not have its own transporter but must donate its electrons to another molecule to appear to be transported?

PROTONS, NADH, FADH2, ACETLYCOENZYME A

The nonstandard amino acid citruilline is found in the _____.

CITRIC ACID CYCLE, UREA CYCLE, GLYCOGEN SYNTHESIS, GLUCONEOGENESIS

Answer 1

Please find the answer below:

Transport of ________is NOT shared (or in common) during both aerobic respiration AND beta-oxidation of lipids?

Answer: Pyruvate

Which pair of pathways are regulated so they do not occur at the same time (to avoid futile cycle) by using different transporters?

Answer: Lipid synthesis and beta-oxidation

Which of the following citric acid cycle intermediates can make the amino acid aspartate if an amino group is added to it?

Answer: Oxaloacetate

Which molecule does not have its own transporter but must donate its electrons to another molecule to appear to be transported?

Answer: NADH

The nonstandard amino acid citrulline is found in the _____.

Answer: Urea cycle

Explanation:

NADH is the reduced form and for several chemical reactions, there is transfer of electrons that turns NADH to NAD+ and vice versa for the reaction to go forward.

The amino acid that occurs in the cells naturally but does not participate in the peptide synthesis is called the non- standard amino acid. They can occur as intermediates in the metabolic pathways. Citrulline and Ornithine occur in the urea cycle.

In aerobic conditions, one molecule of glucose is converted into two molecules of pyruvate to generate two net molecules of ATP. Under aerobic conditions, pyruvate is oxidised to form acetate, which then enters the citric acid cycle to H2O and CO2