Lehninger biochemistry 6th edition pdf download

by Test Bank For you

Lehninger Principles of Biochemistry Sixth Edition by David L. Nelson EBOOK ✔ TEST BANK ✔ Solution Manual ✔ if you need just send email to :

docsmtb@hotmail.com #TestBank #Test_Bank #SolutionManual #Solution_manual #Instructor_Manual #Exams #homework #problems #exercises http://smtb2013.blogspot.com/ https://www.facebook.com/testbanksolutionsm/ Test Bank For You ↑↑↑↑ � sample. test bank ↓↓↓ Chapter 1 The Foundations of Biochemistry Multiple Choice Questions

1. Cellular foundations Pages: 2–4 Difficulty: 1 Ans: C In a bacterial cell, the DNA is in the: A) cell envelope. B) cell membrane. C) nucleoid. D) nucleus. E) ribosomes. 2. Cellular foundations Page: 3 Difficulty: 1 Ans: E A major change occurring in the evolution of eukaryotes from prokaryotes was the development of: A) DNA. B) photosynthetic capability. C) plasma membranes. D) ribosomes. E) the nucleus. 3. Cellular foundations Page: 3 Difficulty: 1 Ans: B In eukaryotes, the nucleus is enclosed by a double membrane called the: A) cell membrane. B) nuclear envelope.

C) nucleolus. D) nucleoplasm. E) nucleosome. 4. Cellular foundations Page: 4 Difficulty: 1 Ans: C The dimensions of living cells are limited, on the lower end by the minimum number of biomolecules necessary for function, and on the upper end by the rate of diffusion of solutes such as oxygen. Except for highly elongated cells, they usually have lengths and diameters in the range of: A) 0.1 �m to 10 �m. B) 0.3 �m to 30 �m. C) 0.3 �m to 100 �m. D) 1 �m to 100 �m. E) 1 �m to 300 �m. 5. Cellular foundations Page: 4 Difficulty: 2 Ans: B Which group of single-celled microorganisms has many members found growing in extreme environments? A) Bacteria B) Archaea C) Eukaryotes

D) Heterotrophs E) None of the above 6. Cellular foundations Page: 5 Difficulty: 2 Ans: B The bacterium E. coli requires simple organic molecules for growth and energy—it is therefore a: A) chemoautotroph. B) chemoheterotroph. C) lithotroph. D) photoautotroph. E) photoheterotroph. 7. Cellular foundations Page: 6 Difficulty: 1 Ans: D Which is a list of organelles? A) Mitochondria, chromatin, endoplasmic reticulum B) Peroxisomes, lysosomes, plasma membrane C) Proteasomes, peroxisomes, lysosomes D) Mitochondria, endoplasmic reticulum, peroxisomes E) All of the above 8. Cellular foundations Pages: 6–8 Difficulty: 2 Ans: B Which one of the following has the cellular components arranged in order of increasing size?

A) Amino acid < protein < mitochondrion < ribosome B) Amino acid < protein < ribosome < mitochondrion C) Amino acid < ribosome < protein < mitochondrion D) Protein < amino acid < mitochondrion < ribosome E) Protein < ribosome < mitochondrion < amino acid 9. Cellular foundations Page: 10 Difficulty: 2 Ans: A The three-dimensional structure of macromolecules is formed and maintained primarily through noncovalent interactions. Which one of the following is not considered a noncovalent interaction? A) Carbon-carbon bonds B) Hydrogen bonds C) Hydrophobic interactions D) Ionic interactions E) van der Waals interactions