Optometry Admission Test Questions and Answers

Optometry Admission Test Questions and Answers Which of the following is true of the gastrula? - Answer-It has three germ layers (ectoderm, mesoderm, and endoderm) Carbon is released in the form of CO2 through? - Answer-Respiration, burning, and decomposition Two species of finches are able to utilize the same food supply, but their beaks are different. They are able to coexist on an island because of? - Answer-Character displacement Character displacement - Answer-Although similar, species in the same habitat have evolved characteristics that reduce competition between them Adaptive Radiation - Answer-The evolution of several species from a single ancestor. It occurs when a species colonizes a new area and members diverge geographically as they adapt to somewhat different conditions The first living cells on earth were most likely - Answer-Heterotrophs Functions of protein in a cell - Answer-- Storage of energy - Structural support - Transport of materials - Catalysis of chemical reactions Amino Acids (AA) consist of? - Answer-A tetrahedral alpha-carbon connected to an amino group, a carboxyl group, and a variable R group, which determines the AA's properties Proteins consist of? - Answer-Amino acids linked by peptide bonds, or amide bonds, which have partial double bond characteristics, lack rotation, and are very stable The secondary structure of proteins (alpha-helices and beta-sheets) are formed through? - Answer-Hydrogen bonding interactions between atoms in the backbone of the molecule