BIO 181 EXAM 2 LATEST 2025 /2026 ARIZONA
STATE UNIVERSITY 100 questions General Biology
original test
Which nucleotide is different in RNA compared to DNA?
Uradine
Draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle
the carbon that is different in RNA.
There are two types of protein synthesis in eukaryotic cells. These two types can be
distinguished because the polyribosome is either or .
Free, or membrane-bound polyribosome
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3'
strand?
Primase
In eukaryotic cells the start codon for protein synthesis is .
AUG or Methionine
RNA synthesis, also called RNA transcription occurs in three phases. List them from
beginning to end in order.
Initiation, Elongation, Termination
How many hydrogen bonds are there between an A and its paired nucleotide?
, Two
List the order in which storage compounds are utilized if there is no intake of food.
Glycogen and Fat, then protein
What is bile made from? And how does oatmeal reduce cholesterol levels?
Bile is made from cholesterol, and some kinds of fiber (like oatmeal) will bind with bile,
decreasing its absorption and lowering cholesterol levels.
How does the pancreas neutralize the pH of the chyme that comes from the stomach?
Bicarbonate Ion Secretions
Think about feedback loops. What triggers the gall bladder to secrete bile?
Fatty acids in the lumen of the duodenum
Name the main enzyme in the stomach.
Pepsin
T/F If something is called a vitamin, it cannot be made by the organism and must be
taken in as a part of diet.
True
T/F Strands of the backbone of DNA are parallel?
False
STATE UNIVERSITY 100 questions General Biology
original test
Which nucleotide is different in RNA compared to DNA?
Uradine
Draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle
the carbon that is different in RNA.
There are two types of protein synthesis in eukaryotic cells. These two types can be
distinguished because the polyribosome is either or .
Free, or membrane-bound polyribosome
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3'
strand?
Primase
In eukaryotic cells the start codon for protein synthesis is .
AUG or Methionine
RNA synthesis, also called RNA transcription occurs in three phases. List them from
beginning to end in order.
Initiation, Elongation, Termination
How many hydrogen bonds are there between an A and its paired nucleotide?
, Two
List the order in which storage compounds are utilized if there is no intake of food.
Glycogen and Fat, then protein
What is bile made from? And how does oatmeal reduce cholesterol levels?
Bile is made from cholesterol, and some kinds of fiber (like oatmeal) will bind with bile,
decreasing its absorption and lowering cholesterol levels.
How does the pancreas neutralize the pH of the chyme that comes from the stomach?
Bicarbonate Ion Secretions
Think about feedback loops. What triggers the gall bladder to secrete bile?
Fatty acids in the lumen of the duodenum
Name the main enzyme in the stomach.
Pepsin
T/F If something is called a vitamin, it cannot be made by the organism and must be
taken in as a part of diet.
True
T/F Strands of the backbone of DNA are parallel?
False
