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Unit 1: Essential Parts: Atoms, Molecules, and Cells
Chapter 4. Life's Home: The Cell
Chapter 4 Post-Test
Chapter 4 Post-Test
This activity contains 33 questions.
"Each cell in your body is a link in a cellular chain that stretches back 3.5 billion years." What does the statement mean about the nature of cells?
All cells are currently seen in the state that they were created in.
Cells have many origins but are similar in their characteristics.
All cells arise from other cells, and there were several original cellular events.
All cells arise from other cells, and the original event happened only once.
Your seven-year-old brother has bet you that the water in the pond behind your house does not have anything living in it. You disagree with him and pull out your microscope to show him the types of eukaryotic cells in the pond water. Which of the following items would be present in eukaryotic cells and NOT in prokaryotic cells?
If you have no other information about an organism other than the fact that it is single-celled, what can you conclude?
It is prokaryotic.
It is neither prokaryotic nor eukaryotic.
It must be a virus.
It is eukaryotic.
It could be either prokaryotic or eukaryotic.
A fungal organism such as mold is _____________.
prokaryotic, because it contains a cell wall
eukaryotic, because it contains membrane-bound organelles
prokaryotic, because it lacks DNA
eukaryotic, because it contains a cell wall
What structure do a prokaryotic cell, a plant cell, and an animal cell have in common?
a cell wall
Which of the following is a feature found ONLY in eukaryotes?
a relatively small size compared with prokaryotic cells
the lack of membrane-bound organelles
existence only as single-celled organelles
the presence of membrane-bound organelles
What is the primary reason that most cells are small?
to allow for rapid cell-to-cell communication
to maximize the surface-area-to-volume ratio
to allow for faster movement of unicellular organisms
to enable unicellular organisms to live undetected
You have detected a protein in an extract of endoplasmic reticulum. What is the likely destination of this protein?
outside the cell
Which organelle lacks a membrane and can be found in prokaryotic cells?
How is the cytoplasm related to the cytosol?
The cytoplasm contains the cytosol.
The cytosol contains organelles, whereas the cytoplasm does not.
The cytoplasm is secreted from the cell, whereas the cytosol is found within the cell.
The cytoplasm is a solid, and the cytosol is fluid.
Which of the following lists is in the correct order, from the largest to the smallest?
protein, atom, lipid, proton
bacterium, fungal cell, virus, protein
electron, neutron, proton, atom
human egg cell, mitochondrion, lipid, atom
Which of the following is equal to a measurement of 1 mm?
Which of the following ratios of surface area to volume in a cell will be the most successful?
You have isolated an organism that is 50 micrometers in size. This organism is most likely ________.
an animal cell
Which of the following statements about a typical animal cell is true?
It is usually shaped like a box.
Although very tiny, it can be seen by the naked eye.
It usually depends on oxygen.
It has a cell wall.
You found a nucleic acid in the cytosol of a eukaryotic cell. What kind of nucleic acid is this likely to be?
If a defect occurs within the Golgi complex of a cell, what problem might arise?
The plasma membrane would begin to dissolve.
Lipids would not be produced.
DNA would be destroyed.
Proteins would be sent in the wrong directions.
Which of the following correctly describes the path of protein production and secretion in a eukaryotic cell?
Golgi complex, rough ER, ribosome, nucleus
mitochondrion, ribosome, plasma membrane
ribosome, rough ER, Golgi complex, plasma membrane
ribosome, nucleus, rough ER, Golgi complex
Many antibiotics kill bacteria by hampering the function of prokaryotic ribosomes. Which of the following cellular processes is directly altered by antibiotics?
production of mRNA
formation of the cell wall
synthesis of proteins
tagging of proteins with molecular markers
The membrane of which organelle is perforated with pores that regulate the passage of large molecules such as mRNA?
The primary function of the nucleolus is ______.
to protect the DNA and produce lipids
to produce the DNA and proteins
to produce ribosomes
to produce energy for the cell
to protect proteins and make them
Cyanide poisoning is lethal because it interrupts the major function of the mitochondria in eukaryotic cells. This means that it interferes with ______.
Your liver is where most of the toxins in your body are broken down. For what organelle would you expect liver cells to be enriched?
Muscle cells require large amounts of energy to produce movement. Therefore, you would expect muscle cells to contain a large number of ______.
If a human sperm is unable to move through the female body to reach the site of the egg, the sperm could have a defect in which of the following structures?
the cell wall
Which organelle is believed to have been a symbiont of an ancient cell?
According to the endosymbiotic theory, what benefit have cells derived from the transition of mitochondria into the eukaryotic cell?
the ability to use oxygen in metabolism
the ability to evolve
the ability to make food
the ability to reproduce
are long filaments made from actin
are permanent structures
are the smallest cytoskeletal element
determine cell shape
Both cilia and flagella _________.
are composed of cytoskeletal elements
are internal structures of the cell
are not organelles
dictate the shape of a cell
How does the function of a chloroplast impact the life of an animal?
It provides animals with oxygen and food.
It allows animals to reproduce.
It allows animals to process food into energy.
It allows animals to fight off pathogens.
From the following description of a cell, what can you conclude? The cell contains internal compartments, one of which takes up most of the volume of the cell, pushing the other organelles toward the membrane edge.
This cell is viral.
This cell is a bacterial cell.
This cell is prokaryotic.
This cell is an animal cell.
This cell is a plant cell.
What special structures form the communication channels between animal cells?
A gap junction is to an animal cell as a _______is to a plant cell.
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