Biology Final Exam

Question 1

Nucleotide

Answer 1

• Forms the DNA

- Made up of phosphates, sugar(deoxyribose), nitrogen bases

Question 2

Helicase

Answer 2

Unwinds the DNA helix

Question 3

Larynx

Answer 3

• Voicebox

- allows the pig to produce sound (oinks)

Question 4

Virus

Answer 4

A nonliving particle made of
proteins and nucleic acids
(DNA and/or RNA)

Question 5

Lytic infection

Answer 5

• The virus enters the cell and uses it to make lots of copies of
  itself
• The cell breaks open (lyses) and the new viruses go on
  to infect other cells

Question 6

Lysogenic infection

Answer 6

• Viral genetic information is inserted into the host cell’s
  DNA
• Viral DNA lays dormant in the host cell until triggered
• Then it becomes a lytic infection (the cell breaks open (lyses) and the new viruses go on
  to infect other cells)

Question 7

Bacilli

Answer 7

Rod-shaped bacteria

Question 8

Cocci

Answer 8

Spherical-shaped bacteria

Question 9

Spirilla

Answer 9

Spiral-shaped bacteria

Question 10

Binary fission

Answer 10

– Asexual reproduction
– It replicates its DNA and
divides in half
– Creates two identical
cells

Question 11

Antibiotic

Answer 11

A drug used to control growth of bacteria by
killing them or inhibiting reproduction
disrupts cell wall formation
blocks protein synthesis and DNA synthesis
Common antibiotics include
Amoxicillin, erythromycin, penicillin
•• can only treat bacterial infections

Question 12

DNA replication

Answer 12

• During the S phase, DNA is duplicated in preparation for cell division
• Happens at many different places on the chromosome at each time
• Each newly replicates molecule