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Biochemistry Ch. 1

Chapter 1 - The Foundations of Biochemistry - Quiz

QuestionAnswer
In a bacterial cell, the DNA is in the: Nucleiod
In eukaryotes, the nucleus is enclosed by a double membrane called the: Nuclear envelope
What group of single-celled micro-organisms has many members found growing in extreme environments? Archaea
The bacterium E. coli requires simple organic molecules for growth and energy. It is therefore what kind of "troph"? Chemoheterotroph
Put the following cellular components in order of increasing size: protein, amino acid, ribosome, mitochondrion Amino acid < protein < ribosome < mitochondrion
The 3-D structure of macromolecules is formed and maintained primarily through noncolvent interactions. What is not a covalent interaction? Carbon-carbon bonds
The four covalent bonds in methane (CH4) are arranged around carbon to give which type of geometry? Tetrahedral
The macromolecules that serve in the storage and transmission of genetic info are: Nucleic acids
Stereoisomers that are non superimposable mirror images of each other are called: Enantiomers
The enzyme fumarase catalyzes the reversible hydration of fumaric acid to I-malate, but it will not catalyze the hydration of maleic acid, the cis isomer of fumaric acid. This is an example of: Stereospecificity
Humans maintain a nearly constant level of hemoglobin by continually synthesizing and degrading it. This is an example of a(n): Dynamic steady state
Created by: 602689421
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