Answer the following questions true (T) or false (F)
1. In chemiosmosis, protons funnel through ATP synthase from an area where they are more concentrated to an area where they are less concentrated.
2. The Entner-Doudoroff pathway is a less efficient alternative to glycolysis which likely evolved early in the history of life to catabolize glucose.
3. A bacterial culture which is growing under conditions that only allow for fermentation will grow at the same rate as a culture of the same species growing under conditions which allow for aerobic cellular respiration, all other conditions being identical.
1. TRUE
2. TRUE
3. FALSE
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How do we describe transformation in bacteria?
A) the creation of a strand of DNA from an RNA molecule B) the creation of a strand of RNA from a DNA molecule C) the infection of cells by a phage DNA molecule D) semiconservative replication of DNA E) assimilation of external DNA into a cell
Which of the following is NOT involved in turning off the lac operon?
a. the short lifespan of mRNA molecules b. the short lifespan of the lac operon gene products c. the depletion of lactose from the cytosol d. the lack of allolactose to bind to the repressor e. binding of repressor to the operator
Motility is the only digestive task of the
a. mouth. b. esophagus. c. stomach. d. duodenum. e. jejunum.
Which process converts the nucleotide language of mRNA into the amino acid language of a protein?
A) DNA replication B) transcription C) translation D) meiosis