Name at least four things you know about enzymes
What will be an ideal response
1. Most are proteins.
2. They have specific binding sites for specific substrates.
3. They lower the activation barrier for a specific reaction.
4. The names often end in "ase."
5. They can be denatured.
6. They can be used again and again.
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All of the following are necessary guidelines to ensure that the laboratory is a safe environment EXCEPT which statement?
A) Only students enrolled in the course are allowed in the laboratory. B) No eating is allowed in laboratory; however, drinks are allowed. C) Never perform an experiment without your instructor's permission. D) Wear shoes at all times in the laboratory.
The process of forming three germ layers from the embryonic disk is called ________.
A. gastrulation B. fertilization C. differentiation D. meiosis E. implantation
Which of the following is NOT true of the curvatures of the vertebral column?
A. The thoracic and sacral curvatures are convex on the anterior side and concave on the posterior side. B. The cervical and lumbar curvatures are secondary curvatures. C. There are four curvatures of the vertebral column. D. Primary curvatures are formed by the time of birth. E. All of these are true of the curvatures of the vertebral column.
Most antigens to which B cells respond are:
a. B-dependent antigens b. T-dependent antigens c. B antibodies d. T antibodies e. T cells