Pinocytosis is a method by which molecules can leave cells whose membranes are impermeable to the molecules.
Answer the following statement true (T) or false (F)
False
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following transcription, only some portions of the mRNA code for the final protein. the sections of mRNA that contain necessary code are called __________________, whereas the mRNA sections that do not code for the final protein are called ________________.
Fill in the blank(s) with the appropriate word(s).
How would denaturing collagen from the bone matrix affect the physical properties of a bone?
A) The bone would be less flexible. B) The bone would be stronger. C) The bone would be more brittle. D) The bone would be more flexible. E) The bone would be less compressible.
Thoracic vertebrae can be distinguished from other vertebrae by the presence of
A) transverse processes. B) transverse foramina. C) facets for the articulation of ribs. D) notched spinous processes. E) costal cartilages.
The esophagus
A. contains both smooth and skeletal muscle fibers. B. secretes digestive enzymes from its mucosa. C. is located anterior to the trachea. D. is lined with pseudostratified ciliated columnar epithelium. E. opens to the stomach at the pyloric sphincter.