It has been discovered that enzyme-like catalysis can be carried out not only by enzymes but also by
A. sugars.
B. RNA.
C. DNA.
D. steroids.
E. phospholipids.
Answer: B
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You recently discovered a new element, and find that this particular element has one electron its outer energy level. What would you expect will happen to an atom of this element if placed in water?
A. It will gain an electron forming a positive ion. B. It will lose an electron forming a negative ion. C. It will lose an electron forming a positive ion. D. It will gain an electron forming a negative ion.
Which of the following groups contains
organisms that produce free-living larvae? a. cnidarians b. echinoderms c. arthropods d. cnidarians and echinoderms e. cnidarians, echinoderms, and arthropods
Which process propels the food down the esophagus into the stomach?
a. glycolysis b. plasmolysis c. emulsion d. peristalsis e. segmentation
As the electrons pass through the electron transport chain, they help establish a
What will be an ideal response?