A Patient with a Deep,large Laceration of the Left Forearm,which

question 18

Multiple Choice

A patient with a deep,large laceration of the left forearm,which has damaged nerve fibres as well as other tissue,asks the nurse to explain what the effect of the nerve damage will be.What is the best response to the patient?

• A) Nerve cells cannot regenerate,and the sensory and motor loss will be permanent.
• B) He will probably have return of normal motor and sensory function because peripheral nerve cells can regenerate.
• C) Only nerve fibres within the central nervous system are capable of regeneration,and the nerve loss he has distal to his injury will be permanent.
• D) There is a chance that some nervous function will return because peripheral nerve fibres can slowly regenerate if cell bodies have not been damaged.

Identify the conditions that might have favored the polymerization of biomolecules on early Earth.

Understand the experimental evidence supporting various hypotheses about the origin of life.

Acknowledge the relationship between the structures of protocells and living cells in terms of evolutionary biology.

Recognize the significance of self-assembly processes in the evolutionary history of cellular membranes.

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Definitions:

Water

A transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans.

Potassium

A soft, silvery-white metallic element, very reactive, especially in water, and essential for plant and animal life.

KCl

KCl, known as potassium chloride, is a metal halide salt composed of potassium and chlorine, used in medicine, food processing, and as a fertilizer.

Moles

A unit of measure in chemistry that represents 6.022 x 10^23 particles of a substance.