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The term amphipathic describes the characteristic of some molecules that have ________. (2pts)

An enzyme synthesized in the laboratory is found to have little activity when compared to the enzyme extracted from cell culture. Both enzymes were examined and have identical amino acid composition. What is the best explanation for the lack of activity of the synthesized enzyme? (2pts)

Which of the following statements about animal lipids is false?

Sodium (Na), with an atomic number of 11, has a tendency to lose an electron in the presence of chlorine. After losing the electron, Na will have ________ protons in its nucleus.

The function of each protein is a consequence of its specific shape. What is the term used for a change in a protein’s three-dimensional shape or conformation due to disruption of hydrogen bonds, disulfide bridges, or ionic bonds?

In an effort to increase milk production of dairy cows, a farmer decides to experiment with a new food additive. Half the cows (Group 1) are given the new food additive, while the other half of the cows (Group 2) are not given food additive. Group 1 represents the ______ group of this experiment, while Group 2 represents the _______ group of the experiment.

Which term best describes the water component of a sugar- water mixture?

A student measuring the pH of the water in a fish tank found it to have a pH of 8. Which of the following statements is true regarding that solution?

The atomic number of nitrogen is 7. Nitrogen-15 is heavier than nitrogen-14 because the atomic nucleus of nitrogen-15 contains how many neutrons?

Which of the following observations is the strongest argument in favor of the hypothesis that protein structure and function are correlated?