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BIO 152 – Exam 1, BIO 152, Complete Study Questions and Answers..

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BIO 152 Exam 1. It covers fundamental biology topics including biological macromolecules, enzymes, cell membranes, membrane transport, osmosis, diffusion, phospholipids, proteins, nucleic acids, carbohydrates, lipids, and cellular energy. The material is organized in a flashcard format, making it ideal for memorization, self-testing, and preparation for the first biology exam. It serves as a concise review of the core concepts introduced early in the course.

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If a mutation caused the number of amino acids in a protein to change from 600 to
599, how might this affect the protein?


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The function of the protein could change &
The structure (shape) of the protein could change.




Which of the following is a function of a carbohydrate?


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Structural support such as the shell of an insect.

, A measure of how easily a molecule can move across a cell membrane refers to the
molecule's __________.


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permeability




When an enzyme is ___________ it will changes its shape in such a way that its substrate
can successfully bind within the___________


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activated, active site




What is the major difference between simple diffusion and facilitated diffusion when
considering movement of a solute across a biological membrane?


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Molecules that move using simple diffusion do not need help to cross the
membrane, whereas those that move using facilitated diffusion do need
help.




Proteins are held together by chemical interactions among and within its amino acid
chain(s). If a protein has more than one chain, what level of structure does the
interaction among multiple chains represent?


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