In the reaction: pyruvate + CoA + NAD+ ? acetyl CoA + CO2 + NADH.
A. Pyruvate is reduced and CoA is oxidized.
B. Pyruvate is oxidized and NAD+ is reduced.
C. Pyruvate is reduced and NAD+ is oxidized.
D. Pyruvate is oxidized and CoA is reduced.
B. Pyruvate is oxidized and NAD+ is reduced.
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Analysis of the similarities and differences in protein-coding genes and other types of sequences in the genomes of different species is an area of study called ____
Fill in the blank with the appropriate word.
The fact that regeneration is a common type of reproduction in sea stars suggests that
A. sea star populations have high levels of genetic diversity. B. all sea stars are haploid. C. sea stars have almost no predators. D. adult sea star cells retain the mechanism to form a complete animal.
Identify the point in time during an action potential when a positive feedback process is occurring in a neuron.
A. when the neuron is at rest B. after the peak depolarization of the action potential when it is rapidly repolarizing C. as the neuron is being depolarized and passes the threshold potential D. during the undershoot phase when the neuron is slightly hyperpolarized relative to the resting potential E. A positive feedback process is occurring at all the time points given.
Which of the following is caused by Haemophilus influenzae?
A. Tetanus B. Bacterial meningitis C. Pharyngitis D. Influenza (flu) E. Kuru