2401%20T-F%20Statements%20I[1] - 2401 Exam 1 - Review...

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Be sure to correct all false statements (in at least two ways, if possible): 1. (T/F) 10 mls of solution at pH 5.37 contain fewer hydrogen ions than does 100 mls of solution at pH 5.37. 2. (T/F) 10 mls of solution at pH 6.37 contain a higher concentration of hydrogen ions than 100 mls of a solution at pH 6.37. 3. (T/F) 10 mls of solution at pH 8.37 contain more hydrogen ions than does 10 mls of solution at pH 8.37. 4. (T/F) A 0.5% NaCl solution has a higher osmotic pressure than a human cell and causes the cell to crenate. 5. (T/F) A 0.9% glucose solution has more nondiffusible water molecules than the cytosol of a human cell. 6. (T/F) A 5% glucose solution is hypertonic to a human cell and causes the cell to lyse. 7. (T/F) A functional group is related to the reactivity of an organic compound in a way similar to the outer electrons are related to an atom’s reactivity. 8. (T/F) A gene segment has the base sequence CTAGCA. If a mutation occurs with adenine being inserted after the thymine, the second codon to be formed using this gene as a template will be UUC. 9. (T/F) A glycocalyx is a cell connection that allows materials to pass from the cytoplasm of one cell into the cytoplasm of an another cell. 10. (T/F) A human cell during metaphase contains 46 chromatids. 11. (T/F) A human cell synthesizes its rRNA at 60s and 40s ribosomal subunits, whereas, bacteria synthesize their rRNA at 50s and 30s ribosomal subunits. 12. (T/F) A large cuboidal cell has fewer units of surface area than a small cuboidal cell. 13. (T/F) A large cuboidal cell has more units of surface area for each unit of its volume compared to a small cuboidal cell. 14. (T/F) A mitochondrion inside a human cell contains a circular DNA molecule that is bound to histones and undergoes mitosis during S phase of the cell cycle. 15. (T/F) A monoglyceride has one more fatty acid than a phospholipid. 16. (T/F) A Na/K pump allows three Na + ions to diffuse out of the cell. 17. (T/F) A nucleotide is related to mRNA in the same way that a protein is related to insulin. 18. (T/F) A peripheral protein is a type of membrane protein classified by function. 19. (T/F) A phosphatase phosphorylates other compounds. 20. (T/F) A physiological saline solution is slightly hypotonic to human cells. 21. (T/F) A regulatory protein is always an integral protein when classified by location. 22. (T/F) A salt molecule is held together by ionic bonds. 23. (T/F) A salt solution with a lower osmolarity than the cell will cause the cell to lose water. 24. (T/F) A sequence of rRNA bases determines the primary structure of a sodium-potassium pump. 25. (T/F) A solution that contains 250 mOsm glucose/L is isotonic to human cells. 26. (T/F)
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This note was uploaded on 04/07/2009 for the course BIO 2401 taught by Professor Taylor during the Spring '09 term at Baylor.

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2401%20T-F%20Statements%20I[1] - 2401 Exam 1 - Review...

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