BCH 361 EXAM 1 QUESTIONS WITH VERIFIED
ANSWERS
What is biochemistry? - Answers - Study of chemical rxns that take place in a living
organism.
What are the most abundant atoms? - Answers - Nitrogen, carbon, hydrogen and
oxygen.
What is a covalent bond? - Answers - A STRONG chemical bond formed when two or
atoms share electrons.
DNA - Answers - deoxyribonucleic acid
RNA - Answers - ribonucleic acid
Proteins are made up of what? - Answers - polymers of amino acids
What is the central dogma? - Answers - DNA transcription via RNA polymerase --> RNA
translation via ribosome --> Protein
What are hydrophobic molecules? - Answers - Molecules that do not like water and in a
cell, layers of the cell membrane interact with each other.
What are hydrophilic molecules? - Answers - Molecules that like water and in a cell,
layers of the cell membrane interact with the environment.
Prokaryotic cell - Answers - cell that does not have a nucleus or other membrane-bound
organelles. DNA bundles together in a region called the nucleoid.
Eukaryotic cells - Answers - Contain a nucleus and other organelles that are bound by
membranes. Mitochondrion is the site of ATP (energy) product through oxidative
phosphorylation.
Bacterial cells - Answers - A type of prokaryotic cell. They have ribosomes which are
enzymes and they make protein synthesis from an RNA message.
Animal cells - Answers - A type of eukaryotic cell. The nucleolus contains the sit of
ribosomal RNA synthesis. Chromatins (DNA and protein) are enclosed in the nucleus by
a double layer membrane called nuclear envelope and is separated from cytoplasm.
ANSWERS
What is biochemistry? - Answers - Study of chemical rxns that take place in a living
organism.
What are the most abundant atoms? - Answers - Nitrogen, carbon, hydrogen and
oxygen.
What is a covalent bond? - Answers - A STRONG chemical bond formed when two or
atoms share electrons.
DNA - Answers - deoxyribonucleic acid
RNA - Answers - ribonucleic acid
Proteins are made up of what? - Answers - polymers of amino acids
What is the central dogma? - Answers - DNA transcription via RNA polymerase --> RNA
translation via ribosome --> Protein
What are hydrophobic molecules? - Answers - Molecules that do not like water and in a
cell, layers of the cell membrane interact with each other.
What are hydrophilic molecules? - Answers - Molecules that like water and in a cell,
layers of the cell membrane interact with the environment.
Prokaryotic cell - Answers - cell that does not have a nucleus or other membrane-bound
organelles. DNA bundles together in a region called the nucleoid.
Eukaryotic cells - Answers - Contain a nucleus and other organelles that are bound by
membranes. Mitochondrion is the site of ATP (energy) product through oxidative
phosphorylation.
Bacterial cells - Answers - A type of prokaryotic cell. They have ribosomes which are
enzymes and they make protein synthesis from an RNA message.
Animal cells - Answers - A type of eukaryotic cell. The nucleolus contains the sit of
ribosomal RNA synthesis. Chromatins (DNA and protein) are enclosed in the nucleus by
a double layer membrane called nuclear envelope and is separated from cytoplasm.
