Question 1

In a liver cell detoxifying alcohol and some other poisons, the enzymes of the peroxisome remove hydrogen from these molecules and

Accepted Answer

A)   combine the hydrogen with water molecules to generate hydrogen peroxide.
B)   combine the hydrogen with hydrogen peroxide to generate water.
C)   combine the hydrogen with hydrogen peroxide to generate oxygen and water.
D)   combine the hydrogen with oxygen molecules to generate hydrogen peroxide.

Question 2

Extracellular matrix proteins are produced by ribosomes in which part of a eukaryotic cell?

Accepted Answer

A)   lysosomes
B)   cytoplasm
C)   nuclear envelope
D)   Golgi apparatus
E)   rough ER

Question 3

Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. In animal cells, which of the following organelles contains these hydrolytic enzymes?

Accepted Answer

A)   mitochondria
B)   lysosomes
C)   central vacuoles
D)   peroxisomes

Question 4

Which structure is not part of the endomembrane system?

Accepted Answer

A)   nuclear envelope
B)   chloroplast
C)   Golgi apparatus
D)   plasma membrane

Question 5

Which animal cell organelle contains enzymes that transfer hydrogen from various substrates to oxygen?

Accepted Answer

A)   lysosome
B)   vacuole
C)   mitochondrion
D)   Golgi apparatus
E)   peroxisome

Question 6

A biologist wants to examine the surfaces of different types of cells in kidney tubules of small mammals. The cells in question can be distinguished by external shape, size, and 3-D characteristics. Which of the following would be the optimum method for her study?

Accepted Answer

A)   transmission electron microscopy
B)   cell fractionation
C)   light microscopy using stained sections of kidney tissue
D)   light microscopy of living unstained material
E)   scanning electron microscopy

Question 7

Which of the following statements correctly describes a function of the Golgi apparatus?

Accepted Answer

A)   detoxification of toxins
B)   protein modification and sorting
C)   synthesis of cytoplasmic proteins
D)   assembly of ribosomal subunits

Question 8

Signals from the ECM to the cytoskeleton may be transmitted by

Accepted Answer

A)   fibronectin.
B)   proteoglycans.
C)   integrins.
D)   collagen.
E)   middle lamella.

Question 9

The nuclear lamina is a netlike array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you expect to be the most likely immediate consequence?

Accepted Answer

A)   the loss of all nuclear function
B)   the inability of the nucleus to divide during cell division
C)   a change in the shape of the nucleus
D)   closure of nuclear pores disrupting transport of materials into and out of the nucleus
E)   inability of the nucleus to keep out destructive chemicals

Question 10

A 9 + 2 arrangement of microtubules, consisting of nine doublets of microtubules surrounding a pair of single microtubules, is associated with

Accepted Answer

A)   motile cilia centrioles
B)   centrioles only
C)   both eukaryotic and bacterial flagella
D)   eukaryotic flagella only
E)   eukaryotic flagella and motile cilia

Question 11

Which organelles or structures are absent in plant cells?

Accepted Answer

A)   mitochondria
B)   microtubules
C)   Golgi apparatus
D)   centrosomes
E)   peroxisomes

Question 12

One of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is the endomembrane system. Which eukaryotic organelles or features might have evolved as a part of, or as an elaboration of, the endomembrane system?

Accepted Answer

A)   plasma membrane
B)   chloroplasts
C)   mitochondria
D)   nuclear envelope

Question 13

When a potassium ion (K+)  moves from the soil into the vacuole of a cell on the surface of a root, it must pass through several cellular structures. Which of the following correctly describes the order in which these structures will be encountered by the ion?

Accepted Answer

A)   plasma membrane → primary cell wall → cytoplasm → vacuole
B)   secondary cell wall → plasma membrane → primary cell wall → cytoplasm → vacuole
C)   primary cell wall → plasma membrane → cytoplasm → vacuole
D)   primary cell wall → plasma membrane → lysosome → cytoplasm → vacuole
E)   primary cell wall → plasma membrane → cytoplasm → secondary cell wall → vacuole

Question 14

Cyanide binds to at least one molecule involved in producing ATP. If a cell is exposed to cyanide, most of the cyanide will be found within the

Accepted Answer

A)   mitochondria.
B)   ribosomes.
C)   peroxisomes.
D)   lysosomes.

Question 15

Cells require which of the following to form cilia or flagella?

Accepted Answer

A)   laminin
B)   tubulin
C)   actin
D)   myosin

Exam 4: A Tour of the Cell

Cyanide binds to at least one molecule involved in producing ATP. If a cell is exposed to cyanide, most of the cyanide will be found within the

Correct Answer
verified

Which organelles or structures are absent in plant cells?

Correct Answer
verified

Which animal cell organelle contains enzymes that transfer hydrogen from various substrates to oxygen?

Correct Answer
verified

Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. In animal cells, which of the following organelles contains these hydrolytic enzymes?

Correct Answer
verified

In a liver cell detoxifying alcohol and some other poisons, the enzymes of the peroxisome remove hydrogen from these molecules and

Correct Answer
verified

Extracellular matrix proteins are produced by ribosomes in which part of a eukaryotic cell?

Correct Answer
verified

Cells require which of the following to form cilia or flagella?

Correct Answer
verified

When a potassium ion (K+) moves from the soil into the vacuole of a cell on the surface of a root, it must pass through several cellular structures. Which of the following correctly describes the order in which these structures will be encountered by the ion?

Correct Answer
verified

Signals from the ECM to the cytoskeleton may be transmitted by

Correct Answer
verified

Which of the following statements correctly describes a function of the Golgi apparatus?

Correct Answer
verified

Which structure is not part of the endomembrane system?

Correct Answer
verified

A 9 + 2 arrangement of microtubules, consisting of nine doublets of microtubules surrounding a pair of single microtubules, is associated with

Correct Answer
verified

The nuclear lamina is a netlike array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you expect to be the most likely immediate consequence?

Correct Answer
verified

A biologist wants to examine the surfaces of different types of cells in kidney tubules of small mammals. The cells in question can be distinguished by external shape, size, and 3-D characteristics. Which of the following would be the optimum method for her study?

Correct Answer
verified

One of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is the endomembrane system. Which eukaryotic organelles or features might have evolved as a part of, or as an elaboration of, the endomembrane system?

Correct Answer
verified

Exam 4: A Tour of the Cell

Cyanide binds to at least one molecule involved in producing ATP. If a cell is exposed to cyanide, most of the cyanide will be found within the

Correct AnswerverifiedShow Answer

Which organelles or structures are absent in plant cells?

Correct AnswerverifiedShow Answer

Which animal cell organelle contains enzymes that transfer hydrogen from various substrates to oxygen?

Correct AnswerverifiedShow Answer

Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components. In animal cells, which of the following organelles contains these hydrolytic enzymes?

Correct AnswerverifiedShow Answer

In a liver cell detoxifying alcohol and some other poisons, the enzymes of the peroxisome remove hydrogen from these molecules and

Correct AnswerverifiedShow Answer

Extracellular matrix proteins are produced by ribosomes in which part of a eukaryotic cell?

Correct AnswerverifiedShow Answer

Cells require which of the following to form cilia or flagella?

Correct AnswerverifiedShow Answer

When a potassium ion (K+) moves from the soil into the vacuole of a cell on the surface of a root, it must pass through several cellular structures. Which of the following correctly describes the order in which these structures will be encountered by the ion?

Correct AnswerverifiedShow Answer

Signals from the ECM to the cytoskeleton may be transmitted by

Correct AnswerverifiedShow Answer

Which of the following statements correctly describes a function of the Golgi apparatus?

Correct AnswerverifiedShow Answer

Which structure is not part of the endomembrane system?

Correct AnswerverifiedShow Answer

A 9 + 2 arrangement of microtubules, consisting of nine doublets of microtubules surrounding a pair of single microtubules, is associated with

Correct AnswerverifiedShow Answer

The nuclear lamina is a netlike array of filaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you expect to be the most likely immediate consequence?

Correct AnswerverifiedShow Answer

A biologist wants to examine the surfaces of different types of cells in kidney tubules of small mammals. The cells in question can be distinguished by external shape, size, and 3-D characteristics. Which of the following would be the optimum method for her study?

Correct AnswerverifiedShow Answer

One of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is the endomembrane system. Which eukaryotic organelles or features might have evolved as a part of, or as an elaboration of, the endomembrane system?

Correct AnswerverifiedShow Answer

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