Saliva contains the hydrolytic enzyme, salivary amylase, which initiates the breakdown of the polysaccharide _________ into the disaccharide, maltose.
A. sucrose
B. starch
C. glucose
D. fructose
E. cellulose
B. starch
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The __________ circuit carries blood from the heart to body tissues, and then returns it to the heart. Fill in the blank(s) with the appropriate word(s)
During swallowing food, which structure moves downward to prevent food from entering the trachea?
a. larynx b. pharynx c. glottis d. epiglottis e. bronchus
Which is the correct sequence of embryonic development in eudicots?
a. globular stage embryo ? suspensor embryo ? proembryo ? heart stage embryo b. heart stage embryo ? globular stage embryo ? proembryo ? torpedo stage embryo c. torpedo stage embryo ? globular stage embryo ? heart stage embryo ? suspensor d. proembryo ? torpedo stage embryo ? heart stage embryo ? globular stage embryo e. proembryo ? globular stage embryo ? heart stage embryo ? torpedo stage embry
Energy is released as ATP becomes ADP when ATP:
A) ejects adenine. B) ejects ribose. C) accepts a phosphate group. D) accepts two phosphate groups. E) ejects one of its phosphate groups.