Exam 4: BIO 2100 (Latest 2026/2027 Update) Microbiology for Health Professionals Questions with Verified Answers | 100% Correct| Graded A+ Galen.

Exam 4: BIO 2100 (Latest 2026/2027 Update)
Microbiology for Health Professionals Questions with
Verified Answers | 100% Correct| Graded A+ Galen.
Question:

Describe the general structure of a nucleotide and draw it?
i,- i,- i,- i,- i,- i,- i,- i,- i,-




Answer:




There is a phosphate group, 5-carbon sugar, and a nitrogenous base.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




There is a phosphate group bonded to the 5' carbon of the sugar.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




There is a nitrogenous base bonded to the 1' carbon of the sugar.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




There is a is a -OH (hydroxyl) group attached to the 3' carbon of the sugar.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




Question:

Describe the general structure of a nucleoside and draw it?
i,- i,- i,- i,- i,- i,- i,- i,- i,-




Answer:

, There is a nitrogenous base and a 5-carbon i,- i,- i,- i,- i,- i,- i,- i,-


sugar (different from a nucleotide because it lacks a phosphate group).
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




There is a nitrogenous base bonded to the 1' carbon of the sugar.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




There is a is a -OH (hydroxyl) group attached to the 3' carbon of the sugar.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




Question:
What is the major different between DNA and RNA nucleotides??
i,- i,- i,- i,- i,- i,- i,- i,- i,-




Answer:

Nucleotides of DNA and RNA differ by the sugar, deoxyribose has one
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


less oxygen than ribose. This is on the 2' position of the sugar.
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




Question:

What are purines? How does their structure differ from pyrimidines??
i,- i,- i,- i,- i,- i,- i,- i,- i,-




Answer:

The Purines are guanine (G) and adenine (A).
i,- i,- i,- i,- i,- i,- i,-




They have double ring bases while pyrimidines do not.
i,- i,- i,- i,- i,- i,- i,- i,-

, Question:

What are pyrimidines? How does their structure differ from purines??
i,- i,- i,- i,- i,- i,- i,- i,- i,-




Answer:

The Pyrimidines are cytosine (C), uracil (U), and thymine (T). Uracil is only
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


found in RNA. Pyrimidines have a single carbon ring while purines have a
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


double ring. i,-




Question:
State which nitrogenous bases pair with each other in DNA and the
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-


number of hydrogen bonds between them.?
i,- i,- i,- i,- i,-




Answer:

Adenine (A) pairs with Thymine (T)- creates two hydrogen bonds
i,- i,- i,- i,- i,- i,- i,- i,- i,-




Guanine (G) pairs with cytosine (C) - creates three hydrogen bonds
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-




Question:

What does NTP stand for? What are the bases (nucleotides) that fall under
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-



this??

Answer:

Nucleoside triphosphate i,-




Bases: ATP, GTP, CTP, UTP
i,- i,- i,- i,-




This is because all of these molecules are molecules of RNA
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-