Magine that you discovered an enzyme in the human stomach that turned the substrate "ABC" into the product "XYZ". Name this enzyme (using the standard convention) and describe its chemical characteristics
Under what conditions would it be an effective catalyst? How might its activity be regulated?
What will be an ideal response?
The enzyme "ABCase" would work best at or near human body temperature and at the acidic pH of the stomach. The enzyme is a globular protein that acts as a catalyst. Its activity might be regulated in a variety of fashions described in section 3.3 of the book.
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Which of the following is incorrectly matched?
A) anterior chamber: between the cornea and the iris B) posterior chamber: between the iris and the lens C) ciliary body: site of extrinsic eye muscle attachment D) retina: consists of a pigmented layer and a neural layer E) sclera: covers most of the ocular surface
Because a reflex response to a stimulus occurs before the individual is aware of it, it is said to be a(n) ________ type of response.
Fill in the blank(s) with the appropriate word(s).
Protein digestion:
a. end products are amino acids b. uses peptidase made in the small intestines c. uses trypsin made in the pancreas d. all of the above
What type of capillaries have large gaps, allow a free exchange of water and solutes, and are found in the liver, bone marrow, and spleen?
a. intercalated b. continuous c. sinusoidal d. fenestrated