Polyploidy is much more common among which type of organism?
a. fungi
b. plants
c. primates
d. humans
e. bacteria
b
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Acetic acid, chemical formula CH3COOH, a component of vinegar, has multiple production pathways. Which of these equations shows anaerobic fermentation?
a. C2H5OH + O2 ? CH3COOH + H2O b. 2 C4H10 + 5 O2 ? 4 CH3COOH + 2 H2O c. 2 CO2 + 4 H2 ? CH3COOH + 2 H2O d. 2 CH3CHO + O2 ? 2 CH3COOH
The absence of this neurotransmitter would lead to a person having problems regulating body temperature and controlling their emotions.
A. serotonin B. dopamine C. endorphins D. acetylcholinesterase
The glycolysis pathway ________ .
a. requires oxygen b. converts acetyl CoA into pantothenic acid c. results in ketogenic compounds d. results in the formation of pyruvate e. is the breakdown of pyruvate to acetyl CoA
All of the following are examples of posttranslational modifications, EXCEPT________
A) Prosthetic groups, such as metals or vitamins, can be added. B) Polypeptides can be degraded and then reassembled to produce entirely different sequenced polypeptides. C) Individual amino acid residues are sometimes modified, such as adding a phosphates, acetyl, or methyl groups can be added. D) Polypeptide chains can be cleaved to produce a shorter and functional polypeptide. E) The N-terminal amino acid is often removed or modified.