Exam 1 Review Flashcards
Which of the following biological molecules contain peptide bonds?
Proteins
Carbohydrates
Lipids
Nucleic Acids
Proteins
What is the function of chaperone proteins?
Denaturation of polypeptides
Assembling amino acids
Regulation of gene expression
Folding proteins
None of the above
FOlding proteins
Which amino acid is responsible for the formation of disulfide bonds?
Alanine
Proline
Tyrosine
Cysteine
Guanine
Cysteine
The removal of water to form a chemical bond is termed –
Dehydration synthesis
Hydrolysis
Degradation
Catabolism
Disassociation
Dehydration Synthesis
Which lipid contains 4 fused carbon rings?
Triglycerides
Steroids
Phospholipids
Terpenes
Saturated fates
Steroids
Which factor is not critical for the folding of proteins?
Ionic bonds
Hydrogen bonds
van der Waals forces
Disulfide bridges
Phosphate bonds
Phosphate bonds
The 2 strands of DNA are covalently bonded together. These bonds are called phosphodiester bonds.
This is true
This is false
True
Which of the following is not part of a nucleotide?
5 carbon sugar
Phosphate group
Fatty acid chain
Nitrogenous base
Fatty acid chain
The energy in lipids is stored in the C-H bonds.
This is true
This is false
True
C-H is a nonpolar group.
This is true
This is false
True
Hydrolysis–
Is used to break polymers
Removes water to form bonds
Is involved in protein synthesis
Can form disaccharides
All of the above
Is used to break polymers
Lincosamides are a class of antibiotics that inhibit peptide bond formation. What type of biological molecule would be effected?
Lipids
Proteins
Nucleic Acids
Carbohydrates
Proteins
If a chromosome contains 20% thymine, how much guanine should it have?
10%
20%
30%
40%
30%
A one-point mutation occurs in a nucleic acid, adenine is replaced with uracil. What type of molecule is this?
Monosaccharide
Deoxyribose Nucleic Acid
Amino Acid
Ribose Nucelic Acid
Triglyceride
Ribose nucelic acid
Which of the following is not a polymer of glucose?
Starch
Glycogen
Chitin
Maltose
All except d
chitin
What happens when a lipid is hydrogenated?
Hydrogen is added to the fatty acid chains
The melting point is raised
The lipid is converted into a saturated fat
The fatty acid chain is straightened
All of the above
All of the aove
You worked at a fish hatchery and wanted to set up an experiment to deliver the female sex hormone, estrogen, to some fish. What type of molecule is estrogen?
Triglyceride
Polypeptide
Steroids
Terpene
Disaccharide
Steroids
If a strand of DNA has a sequence TAGGATC, what would be the complementary sequence?
CGAAGAT
TACCGGA
CGAAGTC
ATCCTAG
If a cell was grown in a growth medium that has a radioactive sulfur isotope which class of biomolecules will show the presence of the isotope?
Nucleic acids
Carbohydrates
Lipids
Proteins
Protein
In the Antacids as Buffers simulation, ________Blank was added to the beakers to simulate stomach acid.
hydrochloric acid
Which antacid was the least effective in the experiment?
sodium bicarbonate with citric acid
Artificial cytoplasm
