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Prokaryotes
Test Description: 1st Test Material
Instructions: Answer all questions to get your test result.
1) Which of the following statements about the effect of early organisms on Earth’s environment is true?
A
The first photosynthetic organisms caused Earth to heat as they converted oxygen to carbon dioxide.
B
The first photosynthetic organisms caused Earth to heat as they converted carbon dioxide to oxygen
C
The first photosynthetic organisms caused Earth to cool as they converted oxygen to carbon dioxide
D
The first photosynthetic organisms caused Earth to cool as they converted carbon dioxide to oxygen
2) Sexual reproduction contributes to genetic diversity by allowing
A
genes from two parents to be mixed and remixed before being passed to offspring.
B
a single parent to pass along a complete set of unmixed genes to offspring.
C
unmixed genes from two parents to be passed to offspring.
D
genes from a single parent to be mixed and remixed before being passed to offspring.
3) Which types of organisms developed first due to the early environmental conditions on Earth?
A
eukaryotic and anaerobic
B
eukaryotic and aerobic
C
prokaryotic and aerobic
D
prokaryotic and anaerobic
4) Which of the following describes why the Miller-Urey theory is widely accepted today?
A
Organic molecules are present today in extremely high concentrations.
B
No other alternative hypotheses have been introduced.
C
Amino acids spontaneously form from molecules in the atmosphere today.
D
The process of synthesizing organic molecules from a mixture of gases has been successfully modeled in the laboratory.
5) Which organisms are prokaryotes?
A
protists
B
fungi
C
plants
D
archaea
6) Some unicellular organisms are motile (have the ability to move) and some are nonmotile. Which cellular structures are associated with movement?
A
Ribosomes
B
Flagella
C
Chloroplasts
D
Vacuoles
7) Which of these functions most like the “brain” of a cell?
A
The nucleus
B
The mitochondrion
C
The Golgi apparatus
D
The smooth endoplasmic reticulum
8) What is one thing that is NEVER found in a prokaryotic cell?
A
flagellum
B
ribosome
C
A membrane bound nucleus
D
pili
9) Which of the following statements is accurate?
A
Bacteria belong to both Archaea and Prokarya.
B
Bacteria belong to Archaea but not Prokarya.
C
Archaea belong to Bacteria but not Prokarya.
D
Prokaryotes belong to both Archaea and Bacteria.
10) Which of the following best explains why a cell does NOT belong to Domain Bacteria?
A
It contains cytoplasm.
B
It contains a cell wall.
C
It contains ribosomes.
D
It contains a nucleus.
11) The early atmosphere on Earth is thought to have lacked which one of the following gases?
A
Nitrogen
B
Methane
C
Oxygen
D
Carbon Dioxide
12) Which statement supports the theory that chloroplasts evolved from cyanobacteria?
A
Chloroplasts lack an outer membrane.
B
Chloroplasts are created by cells.
C
Chloroplasts have their own DNA
D
Chloroplasts have 1 membrane
13) Paramecium reproduces sexually by
A
binary fission
B
conjugation
C
mitosis
D
meiosis
14) Animal-like protists are also called
A
fungi
B
ducks
C
protozoans
D
algae
15) Funguslike protists
A
are always parasites
B
are divided into four major groups
C
are made of chains of cells called hyphae
D
are consumers or decomposers
16) Tiny hairlike structures on the outside of a cell are called
A
cilia
B
flagella
C
nucleoid
D
paramecia
17) What is true about flagella and cilia?
A
They are both whip-like structures.
B
Both are used in the feeding process.
C
Both can be used for movement.
D
Organisms have large numbers of both structures.
18) In the Stanley Miller experiment what did the spark represent?
A
explosion
B
fire
C
lightning
D
implosion
19) What did the Stanley Miller experiment make and why is that important to the beginning of life?
A
Made non living things come to life
B
Made organic molecules like amino acids and these are the building blocks of life
C
Made ATP and this is a building block of life
D
It the gases into water and water is essential for life
20) What did the Miller-Urey experiment represent?
A
Mars' atmosphere
B
Today's Earth atmosphere
C
Early Earth's atmosphere
D
Mercury's atmosphere
*select an answer for all questions
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