The Following Questions Refer to the Figure Above and to the Fred

question 18

Multiple Choice

The following questions refer to the figure above and to the Fred Griffith experiments involving Streptococcus pneumoniae.
-Extracts of pathogenic bacteria can transform harmless bacteria to harmful bacteria unless ____ enzymes are added to the extract.

• A) protein-digesting
• B) mRNA-digesting
• C) tRNA-digesting
• D) DNA-digesting
• E) any of these

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Definitions:

EPSPs

Excitatory PostSynaptic Potentials are electrical changes in the membrane of a post-synaptic neuron that make it more likely to fire an action potential.

Sodium Channels

Protein channels in cell membranes that allow sodium ions to flow into or out of a cell, crucial for processes such as the generation of electrical signals in neurons.

EPSPs

Stands for Excitatory Postsynaptic Potentials, which are temporary increases in neuron membrane potential, making it more likely to fire an action potential.

Temporal Summation

Addition of one graded potential to another that occur close in time.