Bio Test 2
which is an example of disaccharide
maltose
What group of molecules is represented in this structure?
phospholipids
The primary difference between amino acids commonly found in proteins is i. their
R or variable groups
which of the following is responsible for the alpha- helical structure of proteins
R or variable groups
The molecular fragment represented in Figure 3-3 is:
RNA
which is a property of unsaturated fats?
They are generally liquid at room temperature.
Why is it advantageous for cells to be small?
a small cell has a small volume relative to surface area, thereby increasing efficient transport
what type of protein acclerates the thousands of different chemical reactions that take place in an organism
enzyme
what carbohydrate energy storage molecule is found in animal liver and muscle cells
glycogen
If you partially hydrogenate oleic acid, the resulting molecule most likely would:
have a double bond changed from cis to trans
which strategy is most effective for larger cells to have an effective surface area to volume ratio
having thin, finger like projections
an amino group is weakly basic and includes an ______ atom covalent ya bonded to two hydrogen atoms
nitrogen
How many electron pairs are shared between carbon 2 and 3 in the accompanying figure?
one and a half
at which level of protein structure are peptide bonds most important
primary
glucose and frutose are ____ because they have identical molecular formulas but their atoms are arranged differently
structural isomers
assume that the shaded portions of the molecule in the accompanying figure 2 each represent different polypeptide chains
the quaternary
Why are hydrocarbons hydrophobic?
they are composed of many C-H nonpolar covalent bonds
what substance is removed during a condensation reaction
water