Describe the Octet Rule. - Answers
Define valence. - Answers
According to the octet rule, the distribution of electrons in a sulfur atom ( atomic number 16) is: -
Answers 2, 8, 6
An atom with 15 protons will have how many electrons in its outermost orbital? - Answers 5
If the hydroxide concentration of a solution is 10 -4 , the hydrogen ion concentration is: - Answers
10^-10
The kingdoms whose members are multicellular are: - Answers animalia, plantae, fungi
The valence of an atom with five electrons is: - Answers 5
A substance has a hydroxide concentration of .000001M. What is the pH? - Answers 8
The abnormal amino acid in sickle cell hemoglobin is: - Answers valine
If a fluorine atom has an atomic weight of 16 and another has an atomic weight of 18 then these
atoms are: - Answers isotopes
Which of the following pertains to protein: - Answers CHON
Cations and anions would be most frequently associated with which of the following: - Answers ionic
bonds
What is the pH of a solution with a [H + ] of 1x10 -4 ? - Answers 4
The cohesiveness of water molecules is due to: - Answers hydrogen bonds
There are 20 different amino acids in the proteins that make up living cells. The primary difference in
the amino acids is in their: - Answers R groups
Analysis of compound Y indicates that it contains phosphate groups. Based on this information which
of the following information is the best description of this substance? - Answers RNA and DNA
The shape of a folded protein is determined by: - Answers the sequence of amino acids
The partial polarity of water molecules: - Answers promotes formation of hydrogen bonds
A buffer: - Answers a. changes pH by a magnitude of 10 for each pH unit
b. absorbs excess OH -
c. releases excess H +
d. is often a weak acid -base pair
e. MORE THAN ONE OF THE ABOVE IS CORRECT
When a protein denatures it: - Answers a. always loses primary structure
b. loses secondary and tertiary structure
c. becomes insoluable and precipitates
d. MORE THAN ONE OF THE ABOVE MAY BE CORRECT
Identify the correct alternative hypothesis: - Answers CCR5 is anticipated to confer resistance to HIV
on a segment of the northern European population rather than on the US population
Explain Van Der Waals Forces/Interactions. - Answers
What is homeostasis? - Answers
List all major types of chemical bonds and contrast each type with the others. - Answers
What is each of the properties of water and how do they work? - Answers
List every functional group we discussed. - Answers
List each structural level of protein and explain what holds each level together. - Answers
What cellular organelle occurs in both prokaryotes and eukaryotes? - Answers
There are ribosomes in prokaryotes. - Answers TRUE