The Lining of the Intestine Provides a Physical Barrier Against

question 106

True/False

The lining of the intestine provides a physical barrier against microorganisms and their toxins.

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Definitions:

Actin

The protein of which microfilaments consist. Actin, together with the protein myosin, is responsible for muscle contraction.

Rough Endoplasmic Reticulum

A region of the endoplasmic reticulum associated with ribosomes, involved in the synthesis and processing of proteins.

Ribosomes

Cellular structures where protein synthesis occurs, reading mRNA and assembling amino acids into proteins according to the genetic instructions.

Microfilaments

Microfilaments are fine, thread-like protein fibers, composed largely of actin, that are a part of the cytoskeleton in eukaryotic cells, involved in cell movement and shape.