Prokaryotes Question Preview (ID: 38313)
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What is true about flagella and cilia?
a) Both can be used for movement.
b) Organisms have large numbers of both structures.
c) Both are used in the feeding process.
d) They are both whip-like structures.
Tiny hairlike structures on the outside of a cell are called
a) cilia
b) flagella
c) nucleoid
d) paramecia
Animal-like protists are also called
a) protozoans
b) ducks
c) algae
d) fungi
Funguslike protists
a) are consumers or decomposers
b) are made of chains of cells called hyphae
c) are divided into four major groups
d) are always parasites
Which of the following statements is accurate?
a) Prokaryotes belong to both Archaea and Bacteria.
b) Bacteria belong to both Archaea and Prokarya.
c) Bacteria belong to Archaea but not Prokarya.
d) Archaea belong to Bacteria but not Prokarya.
Which of the following best explains why a cell does NOT belong to Domain Bacteria?
a) It contains a nucleus.
b) It contains cytoplasm.
c) It contains ribosomes.
d) It contains a cell wall.
The early atmosphere on Earth is thought to have lacked which one of the following gases?
a) Oxygen
b) Methane
c) Carbon Dioxide
d) Nitrogen
Which statement supports the theory that chloroplasts evolved from cyanobacteria?
a) Chloroplasts have their own DNA
b) Chloroplasts are created by cells.
c) Chloroplasts have 1 membrane
d) Chloroplasts lack an outer membrane.
Paramecium reproduces sexually by
a) conjugation
b) binary fission
c) mitosis
d) meiosis
Which of these functions most like the “brain” of a cell?
a) The mitochondrion
b) The nucleus
c) The Golgi apparatus
d) The smooth endoplasmic reticulum
What is one thing that is NEVER found in a prokaryotic cell?
a) A membrane bound nucleus
b) flagellum
c) pili
d) ribosome
Which of the following describes why the Miller-Urey theory is widely accepted today?
a) The process of synthesizing organic molecules from a mixture of gases has been successfully modeled in the laboratory.
b) No other alternative hypotheses have been introduced.
c) Organic molecules are present today in extremely high concentrations.
d) Amino acids spontaneously form from molecules in the atmosphere today.
Which organisms are prokaryotes?
a) archaea
b) fungi
c) protists
d) plants
Some unicellular organisms are motile (have the ability to move) and some are nonmotile. Which cellular structures are associated with movement?
a) Flagella
b) Chloroplasts
c) Vacuoles
d) Ribosomes
Which types of organisms developed first due to the early environmental conditions on Earth?
a) eukaryotic and aerobic
b) prokaryotic and anaerobic
c) eukaryotic and anaerobic
d) prokaryotic and aerobic
Sexual reproduction contributes to genetic diversity by allowing
a) genes from a single parent to be mixed and remixed before being passed to offspring.
b) unmixed genes from two parents to be passed to offspring.
c) a single parent to pass along a complete set of unmixed genes to offspring.
d) genes from two parents to be mixed and remixed before being passed to offspring.
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 cool as they converted oxygen to carbon dioxide
b) The first photosynthetic organisms caused Earth to cool as they converted carbon dioxide to oxygen
c) The first photosynthetic organisms caused Earth to heat as they converted oxygen to carbon dioxide.
d) The first photosynthetic organisms caused Earth to heat as they converted carbon dioxide to oxygen
In the Stanley Miller experiment what did the spark represent?
a) lightning
b) implosion
c) explosion
d) fire
What did the Stanley Miller experiment make and why is that important to the beginning of life?
a) Made organic molecules like amino acids and these are the building blocks of life
b) Made non living things come to life
c) Made ATP and this is a building block of life
d) It the gases into water and water is essential for life
What did the Miller-Urey experiment represent?
a) Early Earth's atmosphere
b) Mars' atmosphere
c) Today's Earth atmosphere
d) Mercury's atmosphere
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