Which phrase best describes how endergonic reactions are coupled within a cell?
a. Endergonic reactions are coupled to endergonic reactions to produce ATP.
b. Endergonic reactions are coupled to exergonic reactions to produce ATP.
c. Endergonic reactions are coupled to exergonic reactions to produce AMP.
d. Endergonic reactions are coupled to endergonic reactions to produce AMP.
Ans: b. Endergonic reactions are coupled to exergonic reactions to produce ATP.
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a. heart rhythms in song birds b. the stimulation of cancer cell growth in humans c. the menstrual cycle in human females d. sleep cycles in humans e. milk production in mammals after giving birth
The cross section in the accompanying figure is representative of the internal structures found in:
a. phoronids. b. nemerteans. c. gastropods. d. flatworms. e. oligochaetes
The systemic condition often associated with severe infections caused by the presence of bacteria in the bloodstream is known as .
a. dyscrasia b. endocarditis c. pericarditis d. sepsis
Honeybees have an incredible ability to distinguish thousands of different odorant molecules, using their large repertoire of olfactory receptors. A wide variety of different types of chemicals can be detected as odorants; they simply require olfactory neurons with a receptor that can bind the chemical and transduce that stimulus into a receptor potential.If genetically engineered bees could express a receptor for TNT in their olfactory neurons, what type of receptor would the TNT receptor be?
A. Chemoreceptor B. A novel type of receptor C. Mechanoreceptor D. Electromagnetic receptor