In the stomach, food processing continues and secretions from stomach glands aid the initial digestion of
A. carbohydrates.
B. lipids.
C. nucleic acids.
D. proteins.
E. vitamins.
D. proteins.
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Which of the following is TRUE of the hormone glucagon?
A. It is synthesized in the pancreas. B. It stimulates glycogenolysis by the liver. C. It stimulates gluconeogenesis by the liver. D. It is released in response to low blood glucose levels. E. All of the answers provided are correct.
The Atlantic Ocean supports fewer coral species because most of the Atlantic is
a. too warm. b. too stagnant. c. too clear. d. too cold. e. too nutrient-rich.
Which of the following is a protein that can link intermediate filaments with actin filaments and microtubules?
a. alpha-actinin b. beta-catenin c. Integrin d. Plectin e. Laminin
Arrange the following electron carriers in the electron transport chain, based on their standard reduction potentials.Cytochroms a3(Fe3+) + e? ? Cytochrome a3 (Fe2+) Eo (volts) = 0.35Ubiquinone + 2H+ + 2e? ? Ubiquinone H2 Eo (volts) = 0.10Cytochrome a (Fe3+) + e? ? Cytochrome a (Fe2+) Eo (volts) = 0.29Cytochrome c (Fe3+) + e? ? Cytochrome c (Fe2+) Eo (volts) = 0.25
A. cytochrome c - ubiquinone ? cytochrome a ? cytochrome a3 B. cytochrome a3 ? cytochrome a ? cytochrome c ? ubiquinone C. ubiquinone ? cytochrome a ? cytochrome a3 ? cytochrome c D. ubiquinone ? cytochrome c ? cytochrome a ? cytochrome a3