Biochemistry Lecture I Multiple Choice Questions

Which field of study is concerned with the study of life and living organisms, including their structure, function, growth, evolution, distribution, and taxonomy?

Chemistry

Biochemistry

Biology (correct)

Stereochemistry

What are the most important source of energy for your body?

Carbohydrates (correct)

Water

Fats

Protein

Which term refers to compounds that contain the same number of atoms of each element, but have different arrangements of their atoms?

Stereoisomers

Isomers (correct)

Diastereomers

Enantiomers

Which enzymes catalyze the cleavage of phosphodiester bonds between nucleotide subunits in nucleic acids?

Nucleases Signup and view all the answers

Which group of transferases catalyze the transfer of an amine group?

Deaminases Signup and view all the answers

Which type of enzymes break down lipids into fatty acids and glycerol by cleaving ester bonds?

Lipases Signup and view all the answers

Which is the smallest of the 20 Amino acids commonly found in proteins?

Glycine Signup and view all the answers

Which enzyme catalyzes the hydrolysis, breaking single bonds through the addition of water?

Hydrolases Signup and view all the answers

What is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis called?

Codon Signup and view all the answers

What denotes the various biochemical processes responsible for the synthesis of proteins and amino acids?

Protein Metabolism Signup and view all the answers

Where does the breakdown of amino acids to alpha-keto acids occur, following a bimolecular Ping-Pong mechanism?

Transamination Signup and view all the answers

What is the most characterized type of core promoter in eukaryotes, represented by a short DNA sequence?

TATA BOX Signup and view all the answers

What facilitates decoding by inducing the binding of complementary tRNA anticodon sequences to mRNA codons?

Ribosome Signup and view all the answers

What has a tendency to release the RNA transcript and produce truncated transcripts?

Abortive Initiation Signup and view all the answers

What is the cycle of biochemical reactions occurring in many animals that produces urea from ammonia called?

Urea Cycle Signup and view all the answers

What is a fundamental component of amino acids, which are the molecular building blocks of protein?

Nitrogen Signup and view all the answers