QUESTIONS COMPLETE WITH
VERIFIED ANSWERS
\.What bond type holds amino acids together? - ANSWERS✔-peptide bond
\.In an alpha-helix every ____ amino acid interact - ANSWERS✔-4
\.Alpha helices are more likely to be found spanning membranes than beta sheets.
- ANSWERS✔-True
\.R-groups interact to form the tertiary structure - ANSWERS✔-True
\.The 3D shape of an enzyme will allow it to bind with its ligand - ANSWERS✔-True
\.Phospholipids are: - ANSWERS✔-Both Hydrophobic and Hydrophillic
\.Triglycerides are composed of a long chain fatty acid and three glycerols -
ANSWERS✔-False
\.In triglycerides, a fatty acid is joined to glycerol by a ________ bond -
ANSWERS✔-covalent
,\._______ is the diffusion of water molecules through a semipermeable
membrane from a place of higher water concentration to a place of lower water
concentration until the concentration on both sides is equal. - ANSWERS✔-
osmosis
\.Which of the following are extra credit? - ANSWERS✔-After-Lecture Quizzes
E-Book Quizzes
Tutorials
\.Water molecules are attracted to each other and form ________ bonds -
ANSWERS✔-Hydrogen
\.Sodium (Na+) will be attracted to what portion of a water molecule. -
ANSWERS✔-Oxygen
\.A bond in which electrons are shared between atoms is a _______ bond. -
ANSWERS✔-covalent
\.Random movement of molecules in solution from areas of high concentration to
those of lower concentration is known as diffusion. - ANSWERS✔-True
\.What is a histone? - ANSWERS✔-A protein found in eukaryotic cell nuclei that
package and order the DNA into structural units called nucleosomes.
, \.Eukaryotes transcribe RNA within the nucleus, the RNA is then edited before it is
exported from the nucleus to be translated in the cytoplasm by ribosomes. -
ANSWERS✔-True
\.Prokaryotes organize their cellular machinery in membrane bound organelles. -
ANSWERS✔-False
\.Eukaryotic DNA is organized: - ANSWERS✔-by winding around histones to
condense into chromosomes found in the nucleus.
\.What is a ribosome? - ANSWERS✔-A structure within the cytoplasm of a cell that
is composed of RNA and protein and is the site of protein synthesis.
\.Proteins synthesized on the rough ER will ultimately end up (select all that are
correct): - ANSWERS✔-Secreted to the extracellular space
As a trans-membrane protien
In a lysosome
\.Which of the following is a true statement concerning protein synthesis? -
ANSWERS✔-transcription occurs in the nucleus and translation occurs in the
cytoplasm
\.How does RNA differ from DNA? - ANSWERS✔-RNA contains uracil, and DNA
contains thymine.