Rutgers General Biology 116 Exam
Questions and Answers
Virology - ANSWER-study of viruses (not on tree of life)
General Characteristics of Viruses - ANSWER-1. nonliving particles
2. very small
3. Genetic material
Nonliving particles ( not cells) - ANSWER--no nucleus, no cytoplasm, no organelles
Nonliving particles (Obligate Intracellular Parasites) - ANSWER--invade susceptible
host cells
-cannot carry out metabolic activities on their own
-survive only by using resources of host cell
Nonliving particles (cannot reproduce on their own) - ANSWER-replicate (multiply)
only inside living host cell
Virus size - ANSWER-very small 20-300nm, cannot see with light microscope
Genetic material virus - ANSWER-1. either DNA or RNA
2. single stranded or double
3. linear, circular, or segmented
4. 3-100 genes > info to replicate within host
Virus structure - ANSWER--Capsid
-Envelope (some viruses)
Capsid - ANSWER-1. Protein coat
2. Capsomere - protein subunit
3. Shape of virus
4. Attachment
Envelope (some viruses) - ANSWER-1. From host plasma membrane
-Exocytosis
2. Bilayer membrane
-Phospholipids (host)
-Post membrane proteins (host)
-Proteins + glycoproteins of viral origin
Viral Replication (intro) - ANSWER-1. Host range
a. Host species that can be infected by a particular virus
b. Narrow Ex. Measles (humans)
Questions and Answers
Virology - ANSWER-study of viruses (not on tree of life)
General Characteristics of Viruses - ANSWER-1. nonliving particles
2. very small
3. Genetic material
Nonliving particles ( not cells) - ANSWER--no nucleus, no cytoplasm, no organelles
Nonliving particles (Obligate Intracellular Parasites) - ANSWER--invade susceptible
host cells
-cannot carry out metabolic activities on their own
-survive only by using resources of host cell
Nonliving particles (cannot reproduce on their own) - ANSWER-replicate (multiply)
only inside living host cell
Virus size - ANSWER-very small 20-300nm, cannot see with light microscope
Genetic material virus - ANSWER-1. either DNA or RNA
2. single stranded or double
3. linear, circular, or segmented
4. 3-100 genes > info to replicate within host
Virus structure - ANSWER--Capsid
-Envelope (some viruses)
Capsid - ANSWER-1. Protein coat
2. Capsomere - protein subunit
3. Shape of virus
4. Attachment
Envelope (some viruses) - ANSWER-1. From host plasma membrane
-Exocytosis
2. Bilayer membrane
-Phospholipids (host)
-Post membrane proteins (host)
-Proteins + glycoproteins of viral origin
Viral Replication (intro) - ANSWER-1. Host range
a. Host species that can be infected by a particular virus
b. Narrow Ex. Measles (humans)
