BIO 200 FINAL EXAM|| 2024 LATEST UPDATE|| CORRECT QUESTIONS & SOLUTIONS||100% VERIFIED||GRADED A+
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Course
BIO 200
Institution
BIO 200
Which of the following statements about the nitrogen cycle is false?
a. Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil.
b. Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds.
c. Denitrifying bacteria convert ni...
BIO 200 FINAL EXAM|| 2024 LATEST
UPDATE|| CORRECT QUESTIONS &
SOLUTIONS||100% VERIFIED||GRADED A+
Which of the following statements about the nitrogen cycle is false?
a. Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil.
b. Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic
compounds.
c. Denitrifying bacteria convert nitrates (NO3-) into nitrogen gas (N2).
d. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+). - ANSWER
d. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+).
The first forms of life on Earth were thought to be...
a. single-celled plants
b. large animals such as dinosaurs
c. insects
d. prokaryotes - ANSWER d. prokaryotes
Microbial mats...
a. are the earliest forms of life on Earth
b. all of the above
c. obtained their energy and food from hydrothermal vents
d. are multi-layered sheet of prokaryotes including mostly bacteria but also archaea - ANSWER d. are
multi-layered sheet of prokaryotes including mostly bacteria but also archaea
The first organisms that oxygenated the atmosphere were
a. anaerobic organisms
, b. hydrothermal organisms
c. all of the above
d. cyanobacteria - ANSWER d. cyanobacteria
The presence of a membrane-enclosed nucleus is a characteristic of....
a. prokaryotic cells
b. viruses
c. all cells
d. eukaryotic cells - ANSWER d. eukaryotic cells
Which of the following consist of prokaryotic cells?
a. bacteria and fungi
b. archaea and fungi
c. bacteria and archaea
d. protists and animals - ANSWER d. protists and animals
Plants use carbon dioxide from the air and are therefore called _____.
a. producers
b. decomposer
c. carbon fixers
d. consumer - ANSWER a. producers
Prokaryotes that obtain their energy from chemical compounds are called _____
a. auxotrophs
b. chemotrophs
c. phototrophs
d. lithotrophs - ANSWER b. chemotrophs
What event is thought to have contributed to the evolution of eukaryotes?
, a. glaciation
b. oxygenation of the atmosphere
c. volcanic activity
d. global warming - ANSWER b. oxygenation of the atmosphere
Which characteristic is shared by prokaryotes and eukaryotes?
a. mitochondria
b. nuclear envelope
c. cytoskeleton
d. DNA-based genome - ANSWER d. DNA-based genome
Which of these protists is believed to have evolved following a secondary endosymbiosis?
a. red algae
b. chlorarachniophytes
c. cyanobacteria
d. green algae - ANSWER b. chlorarachniophytes
An example of carbon fixation is ____
a. phagocytosis
b. decomposition
c. photosynthesis
d. parasitism - ANSWER c. photosynthesis
Which of the following statements about plant divisions is false?
a. All vascular plants produce seeds.
b. Seed plants include angiosperms and gymnosperms.
c. All nonvascular embryophytes are bryophytes.
d. Lycophytes and pterophytes are seedless vascular plants. - ANSWER a. All vascular plants produce
seeds.
, Which of the following statements about the moss life cycle is false?
a. The mature gametophyte is haploid.
b. The rhizoid buds to form a mature gametophyte.
c. The zygote is housed in the venter.
d. The sporophyte produces haploid spores. - ANSWER b. The rhizoid buds to form a mature
gametophyte.
Which one of these characteristics is present in land plants and not in Charales?
a. alternation of generations
b. flagellated sperm
c. phragmoplasts
d. plasmodesmata - ANSWER a. alternation of generations
Which of the following structures is not found in bryophytes?
a. root
b. chloroplast
c. a cellulose cell wall
d. sporangium - ANSWER a. root
The following structures are found on the underside of fern leaves and contain sporangia:
a. microphylls
b. rhizomes
c. sori
d. megaphylls - ANSWER c. sori
The dominant organism in fern is the ________.
a. gamete
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