BIOL 1202 Exam 2 – Pomarico 2025/2026
Exam Questions and Correct Answers |
New Update
1. How would you classify a prokaryote that lives in hot springs that have a
low pH?
a. Thermoacidophile
b. Thermotrophic bacteria
c. Chemoautotrophic
d. Thermotrophic acidophidus - 🧠 ANSWER ✔✔The correct answer is a)
thermoacidophile. If you break down the name you can see thermo, derived
from the thermos meaning hot, and acid, which is that of a low pH. Do not
be thrown off by the distractor "thermotrophic acidophidus."
,2. During bacterial conjugation, the transferred item is a:
a. Protein
b. Gene
c. Chromosome
d. Plasmid - 🧠 ANSWER ✔✔The correct answer is d) plasmid. A plasmid is
small rings of DNA that carries accessory genes, which encode functions
beneficial to the host cell. During conjugation the plasmids are transferred
from different bacteria.
3. The __________________ perform photosynthesis, have chlorophyll,
and produce oxygen as a by-product.
a. Pathogenic bacteria
b. Cyanobacteria
c. Thermophilic bacteria
d. Heterotrophic bacteria - 🧠 ANSWER ✔✔The correct answer is b)
cyanobacteria. Cyanobacteria do perform photosynthesis, have chlorophyll,
and produce oxygen. Producers are known as autotrophs, so
cyanobacteria would be considered an autotroph. Other cells cannot make
their own food; these are called heterotrophs. Pathogenic bacteria cause
, bacterial infections and thrive off of their host cells. Thermophilic bacteria
are heat-loving cells that are also heterotrophic. And heterotrophic bacteria
is just that, heterotrophic.
4. Gram-negative bacteria have _________ peptidoglycan than gram-
positive and their cell walls are _________ complex.
a. Less, less
b. More, less
c. More, more
d. Less, more - 🧠 ANSWER ✔✔The correct answer is d) less, more.
Scientists use gram-staining to divide the domain bacteria into two groups.
The gram-positive bacteria's peptidoglycan composed cell wall will stain,
and the more complex (simply because it has an extra outer membrane)
gram-negative bacteria will not stain since its peptidoglycan cell wall is the
inner membrane.
5. An autotrophic organism would not require an external source of energy
for metabolism.
a. True
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Correct Answers |
New Update
1. How would you classify a prokaryote that lives in hot springs that have a
low pH?
a. Thermoacidophile
b. Thermotrophic bacteria
c. Chemoautotrophic
d. Thermotrophic acidophidus - 🧠 ANSWER ✔✔The correct answer is a)
thermoacidophile. If you break down the name you can see thermo, derived
from the thermos meaning hot, and acid, which is that of a low pH. Do not
be thrown off by the distractor "thermotrophic acidophidus."
,2. During bacterial conjugation, the transferred item is a:
a. Protein
b. Gene
c. Chromosome
d. Plasmid - 🧠 ANSWER ✔✔The correct answer is d) plasmid. A plasmid is
small rings of DNA that carries accessory genes, which encode functions
beneficial to the host cell. During conjugation the plasmids are transferred
from different bacteria.
3. The __________________ perform photosynthesis, have chlorophyll,
and produce oxygen as a by-product.
a. Pathogenic bacteria
b. Cyanobacteria
c. Thermophilic bacteria
d. Heterotrophic bacteria - 🧠 ANSWER ✔✔The correct answer is b)
cyanobacteria. Cyanobacteria do perform photosynthesis, have chlorophyll,
and produce oxygen. Producers are known as autotrophs, so
cyanobacteria would be considered an autotroph. Other cells cannot make
their own food; these are called heterotrophs. Pathogenic bacteria cause
, bacterial infections and thrive off of their host cells. Thermophilic bacteria
are heat-loving cells that are also heterotrophic. And heterotrophic bacteria
is just that, heterotrophic.
4. Gram-negative bacteria have _________ peptidoglycan than gram-
positive and their cell walls are _________ complex.
a. Less, less
b. More, less
c. More, more
d. Less, more - 🧠 ANSWER ✔✔The correct answer is d) less, more.
Scientists use gram-staining to divide the domain bacteria into two groups.
The gram-positive bacteria's peptidoglycan composed cell wall will stain,
and the more complex (simply because it has an extra outer membrane)
gram-negative bacteria will not stain since its peptidoglycan cell wall is the
inner membrane.
5. An autotrophic organism would not require an external source of energy
for metabolism.
a. True
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
