A cofactor is ________. Examples are ________.
A. a necessary part of some enzymes; copper, iron, and zinc
B. a molecule that destabilizes substrates; carbonic acid
C. an inorganic molecule that some enzymes require; vitamin B12 and B6
D. an inorganic molecule that all enzymes require; cholesterol and calcium
Answer: A
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The most movable joints are ___________ joints.
A. symphysis B. synovial C. syndesmosis D. gomphosis E. synchondrosis
What condition results from excess fluid in the pericardial cavity compressing the heart and reducing the capacity of the ventricles to fill with blood?
What will be an ideal response?
The embryonic germ layer that is the source of connective tissue and muscle is ________.
A. mesoderm B. ectoderm C. exoderm D. neuroectoderm E. endoderm
Children receive a vaccine to protect them against _________________________, a disease characterized by severe coughing attacks.?
Fill in the blank(s) with correct word