Biology 211 Exam 1 Review – Questions With Practical
Solutions
What is bioremediation? Correct Answer - Use of prokaryotes to get rid
of pollutants
Cyanobacteria do not produce toxins that affect biodiversity true of false?
Correct Answer - False
What is mutualism? Correct Answer - Both organisms benefit
Cyanobacteria get energy/food from photosynthesis true or false? Correct
Answer - True
6CO2+ 6H2O + light energy = C6H12O6 + 6O2
What do decomposers do that helps the environment? Correct Answer -
Break down nutrients from dead organisms that live organisms can use. Helps
the nitrogen and phosphorus cycle.
What organisms can fix nitrogen? Correct Answer - Prokaryotes
What two special things that fungi can break down that no other organisms
can? Correct Answer - a. Cellulose
b. Lignin
What are the similarities and differences of prokaryotes and eukaryotes?
Correct Answer - Both have cell membrane
Both contain DNA
Prokaryotes do no have nucleus
Eukaryotes have nucleus
Eukaryotes are bigger
Eukaryotes have membrane bound organelles
Prokaryotes cannot live in extreme environments true or false? Correct
Answer - False
When do endospores form? Correct Answer - During harsh
environmental conditions
, Endospores can last decades true or false? Correct Answer - True
How do prokaryotes transfer DNA? Correct Answer - By conjugation via
sex pilus. DNA is transferred from one cell to the other
What is the ecological causes of black death? Correct Answer - Human to
human
Flea population
Rat population
Rats ate human corpses and fleas would bite humans and transfer black death
true or false? Correct Answer - True
How and why do plants influence biodiversity? Correct Answer - a.
Oxygen
b. Habitat
c. Food
What makes up the plant cell wall? Correct Answer - Cellulose
Protists are prokaryotes true or false? Correct Answer - False
What is the hypothesis of the origin of mitochondria? Correct Answer - a.
They were taken in by other cells and stayed in them.
b. Mito are morphologically similar to bacterial cells
c. Mito have DNA molecules resembling bacteria chromosomes
What is the hypothesis of the origin of chloroplasts? Correct Answer - a.
They were taken in by other cells and stayed in them.
b. Chloroplasts are morphologically similar to cyanobacteria cells
c. Chloroplasts have DNA molecules resmelin DNA
What does it mean to be alive? Correct Answer - 1. consist of 1 or more
membrane-bound cells
2. reproduce
3. possess hereditary info
4. product of evolution
5. acquire and use energy
Solutions
What is bioremediation? Correct Answer - Use of prokaryotes to get rid
of pollutants
Cyanobacteria do not produce toxins that affect biodiversity true of false?
Correct Answer - False
What is mutualism? Correct Answer - Both organisms benefit
Cyanobacteria get energy/food from photosynthesis true or false? Correct
Answer - True
6CO2+ 6H2O + light energy = C6H12O6 + 6O2
What do decomposers do that helps the environment? Correct Answer -
Break down nutrients from dead organisms that live organisms can use. Helps
the nitrogen and phosphorus cycle.
What organisms can fix nitrogen? Correct Answer - Prokaryotes
What two special things that fungi can break down that no other organisms
can? Correct Answer - a. Cellulose
b. Lignin
What are the similarities and differences of prokaryotes and eukaryotes?
Correct Answer - Both have cell membrane
Both contain DNA
Prokaryotes do no have nucleus
Eukaryotes have nucleus
Eukaryotes are bigger
Eukaryotes have membrane bound organelles
Prokaryotes cannot live in extreme environments true or false? Correct
Answer - False
When do endospores form? Correct Answer - During harsh
environmental conditions
, Endospores can last decades true or false? Correct Answer - True
How do prokaryotes transfer DNA? Correct Answer - By conjugation via
sex pilus. DNA is transferred from one cell to the other
What is the ecological causes of black death? Correct Answer - Human to
human
Flea population
Rat population
Rats ate human corpses and fleas would bite humans and transfer black death
true or false? Correct Answer - True
How and why do plants influence biodiversity? Correct Answer - a.
Oxygen
b. Habitat
c. Food
What makes up the plant cell wall? Correct Answer - Cellulose
Protists are prokaryotes true or false? Correct Answer - False
What is the hypothesis of the origin of mitochondria? Correct Answer - a.
They were taken in by other cells and stayed in them.
b. Mito are morphologically similar to bacterial cells
c. Mito have DNA molecules resembling bacteria chromosomes
What is the hypothesis of the origin of chloroplasts? Correct Answer - a.
They were taken in by other cells and stayed in them.
b. Chloroplasts are morphologically similar to cyanobacteria cells
c. Chloroplasts have DNA molecules resmelin DNA
What does it mean to be alive? Correct Answer - 1. consist of 1 or more
membrane-bound cells
2. reproduce
3. possess hereditary info
4. product of evolution
5. acquire and use energy
