Answer the following questions true (T) or false (F)

1. A molecule that has lost electrons has been reduced.

2. In order for one molecule to be oxidized, another molecule must be reduced.

3. Glycolysis probably evolved before the Krebs cycle.


1. FALSE
2. TRUE
3. TRUE

Biology & Microbiology

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Over-the-counter medications for acid reflux or heartburn block the production of stomach acid. Which of the following cells are directly affected by this medication?

A) goblet cells B) chief cells C) parietal cells D) smooth muscle cells

Biology & Microbiology

The ____ provides evidence that RNA molecules generated the first proteins

a. redundancy of the genetic code b. ability of rRNA to catalyze the formation of peptide bonds between amino acids c. polymerase activity of some ribozymes d. cleavage of mRNA molecules by rRNA e. physical structure of polypeptides

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Analysis of mitochondrial DNA from different species of stickleback fish in three lakes disproves the hypothesis of a

common ancestor for all three species. __________________ Indicate whether the statement is true or false.

Biology & Microbiology

Nucleotide or nucleoside (acids/analogs/antisense) are antimicrobial agents that mimic the chemical structure of DNA building blocks

What will be an ideal response?

Biology & Microbiology