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A researcher wants to film the movement of chromosomes during cell division. Which type of microscope should he choose and why is it the best choice?
light microscope, because the specimen is alive
Which of the following features do prokaryotes and eukaryotes have in common?
ribosomes, plasma membrane, cytoplasm
What is the functional connection between the nucleolus, nuclear pores, and the nuclear membrane?
Subunits of ribosomes are assembled in the nucleolus and pass through the nuclear membrane via the nuclear pores.
If we used a light microscope to examine an active cell, involved in extensive protein production, we would expect that chromosomes would appear as _____.
a diffuse mass
A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum and eventually used to build a cell's plasma membrane. The protein in the plasma membrane was actually slightly different from the protein made in the ER. The protein was probably altered in the _____.
Golgi apparatus
Which of the following is (are) most likely to be involved in the process of producing proteins for a chloroplast or mitochondrion, neither of which is part of the endomembrane system?
free cytoplasmic ribosomes
Which one of the following five membranes is most likely to have a lipid composition that is distinct from the other four?
mitochondrial outer membrane
Which one of the following statements about chloroplasts and mitochondria is true?
Chloroplasts and mitochondria synthesize some of their own proteins.
Which type of cell is most likely to have the most mitochondria?
muscle cells in the legs of a marathon runner
The observation that chloroplasts and mitochondria each contain their own DNA and synthesize some of the proteins that function in these organelles suggests that chloroplasts and mitochondria ______.
must divide each time the cell containing them divides
Which of the following organelles might be found inside other organelles?
ribosomes
Which of following structures are found in plant cells and animal cells?
a cytoskeleton
Which statement about the cytoskeleton is true?
Components of the cytoskeleton are often involved with movement of organelles within the cytoplasm.
Cilia and flagella move due to the interaction of the cytoskeleton with which of the following?
motor proteins
Where would you expect to find proteins involved with movement of structures within a cell?
cytoskeleton
Basal bodies are most closely associated with which one of the following cell components?
cilia
Dye injected into a plant cell might be able to enter an adjacent cell through _____.
plasmodesmata
Which of the following correctly compares the extracellular matrix (ECM) of animal cells to cell walls of plant cells?
Both the ECM and the plant cell wall are composed of varying mixtures of proteins and carbohydrates.
What is the functional connection between the nucleolus, nuclear pores, and the nuclear membrane?
What is the functional connection between the nucleolus, nuclear pores, and the nuclear membrane?
A researcher made an interesting observation about a protein made by the rough endoplasmic reticulum and eventually used to build a cell's plasma membrane. The protein in the plasma membrane was actually slightly different from the protein made in the ER. The protein was probably altered in the _____.
Golgi apparatus
Consider a protein that is made in the rough endoplasmic reticulum. You observe that when the synthesis of the protein is completed, the protein is located in the ER membrane. Where else in the cell might this protein be found?
embedded in the plasma membrane functioning in the transport of molecules into the cell
Which of the following sequences represents the order in which a protein made in the rough endoplasmic reticulum might move through the endomembrane system?
Golgi apparatus; vacuole
Which of the following is (are) most likely to be involved in the process of producing proteins for a chloroplast or mitochondrion, neither of which is part of the endomembrane system?
free cytoplasmic ribosomes
A protein that ultimately functions in the plasma membrane of a cell is most likely to have been synthesized _____.
in the rough endoplasmic reticulum
Which one of the following five membranes is most likely to have a lipid composition that is distinct from the other four?
mitochondrial outer membrane
Chloroplasts and mitochondria are thought to be of prokaryotic origin. One piece of evidence that supports this hypothesis is that these organelles contain prokaryotic-like ribosomes. These ribosomes are probably most similar to ribosomes found ______.
in bacterial cells
Which one of the following statements about chloroplasts and mitochondria is true?
Chloroplasts and mitochondria synthesize some of their own proteins.
Which type of cell is most likely to have the most mitochondria?
muscle cells in the legs of a marathon runner
The observation that chloroplasts and mitochondria each contain their own DNA and synthesize some of the proteins that function in these organelles suggests that chloroplasts and mitochondria ______.
must divide each time the cell containing them divides
Which of the following organelles might be found inside other organelles?
ribosomes
Which of the following cellular processes or characteristics is/are related to the cytoskeleton?
all of the above
Which of following structures are found in plant cells and animal cells?
a cytoskeleton
Which statement about the cytoskeleton is true?
Components of the cytoskeleton are often involved with movement of organelles within the cytoplasm.
Basal bodies are most closely associated with which one of the following cell components?
cilia
A protein that ultimately functions in the plasma membrane of a cell is most likely to have been synthesized _____.
in the rough endoplasmic reticulum
Which of the following organelles might be found inside other organelles?
Ribosomes
Which statement about the cytoskeleton is true?
Plant cells lack a cytoskeleton because they have a rigid cell wall.
x of y cards