BLY iClicker Exam 1
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14 Terms
Amino acids are ______ of proteins
Monomers
Glucose, fructose, and galactose are all monomers of which class of macromolecules?
Carbohydrates
Which of the following is a dehydration reaction?
A + B → C + H2O
What level of protein structure does hydrogen bonding form a-helix and b-sheets?
Secondary
What nitrogenous base is a purine?
Adenine
The nitrogenous base that is only found in RNA and not DNA is ________.
Uracil
The biological macromolecule that is least soluble in water is a/an _______.
Lipid
The nucleolus is the site of _______.
Ribosome assembly
The organelle that can collect, package, modify, and transport molecules is called the _______.
Golgi apparatus
The endomembrane system includes all of the following EXCEPT:
Mitochondria
The plasma membrane is a thin sheet of lipid embedded with
Proteins
Membrane proteins are not very soluble in water because they possess long stretches of nonpolar amino acids that are
hydrophobic
A dehydrated runner drinks a lot of water after a race. They rehydrate because
the stomach is hypotonic compared to the bloodstream.
During neuronal signaling, a change in membrane potential will cause sodium channels to open and let Na+ions diffuse down their concentration gradient into the cell. Which of the following helps establish the concentration gradient necessary for this process to occur?
Na+/K+ pump