Question 1

Brock's father has inherited a mitochondrial disease. Is Brock in danger of also having this disease?

Accepted Answer

A) True 
 B)False  False

Question 2

Explain the purpose of cilia, flagella, and centrosomes in the cell.

Accepted Answer

Answers will vary. Cilia and flagella are hairlike projections that can move either in an undulating fashion, like a whip, or stiffly, like an oar. Flagella function in motility. In single-celled organisms, cilia also function in motility and multicellular organisms' cilia help move substances across the surface of the cell. Centrosomes function as the major microtubule organizing center for the cell.

Question 3

Which of these is unique to plant cells?

Accepted Answer

A)  nucleus 
B)  centrioles 
C)  cell membrane 
D)  Golgi apparatus 
E)  chloroplasts 
A)  nucleus 
B)  centrioles 
C)  cell membrane 
D)  Golgi apparatus 
E)  chloroplasts E

Question 4

The nucleolus

Accepted Answer

A)  contains RNA and is found in the nucleus. 
B)  contains polysaccharides and is found in the nucleus. 
C)  contains RNA and is found in the cytoplasm. 
D)  contains DNA and is found in the cytoplasm. 
E)  contains ribosome subunits and is found in the cytoplasm. 
A)  contains RNA and is found in the nucleus. 
B)  contains polysaccharides and is found in the nucleus. 
C)  contains RNA and is found in the cytoplasm. 
D)  contains DNA and is found in the cytoplasm. 
E)  contains ribosome subunits and is found in the cytoplasm.

Question 5

Which nuclear structure(s) contain(s) the hereditary material?

Accepted Answer

A)  nuclear envelope 
B)  chloroplasts 
C)  chromatin 
D)  nucleoplasm 
E)  mitochondria 
A)  nuclear envelope 
B)  chloroplasts 
C)  chromatin 
D)  nucleoplasm 
E)  mitochondria

Question 6

Consider these two examples of tissues: 1. The body of a slime mold that flows over a rotten log appears to lack any partitioning into distinct cells; however, it does become cellular when it changes form and produces spores.
2) The surfaces of parasitic flatworms and some insect tissues are "syncytial" layers of living material that developed from a single cell but now contain many nuclei, though they lack partitioning by cell membranes. These tissues actively consume food and produce wastes.
If the cell theory states that "all living things are composed of cells," then

Accepted Answer

A)  neither of these are living tissues because they violate the cell theory. 
B)  these examples prove that some vital force is involved, beyond normal cell structures, to give life to living organisms. 
C)  these tissues are obviously a bridge between nonliving and primitive living cells. 
D)  the general concept of life-is-cellular still holds, since these organisms still utilize cells at some time in their life cycles, though these examples show that cell membranes can be abandoned. 
E)  these examples demonstrate that cell membranes are a necessity if a cell is to be classified as "living." 
A)  neither of these are living tissues because they violate the cell theory. 
B)  these examples prove that some vital force is involved, beyond normal cell structures, to give life to living organisms. 
C)  these tissues are obviously a bridge between nonliving and primitive living cells. 
D)  the general concept of life-is-cellular still holds, since these organisms still utilize cells at some time in their life cycles, though these examples show that cell membranes can be abandoned. 
E)  these examples demonstrate that cell membranes are a necessity if a cell is to be classified as "living."

Question 7

When a lysosome fuses with a vacuole,

Accepted Answer

A)  they both disappear. 
B)  they both return to the Golgi apparatus. 
C)  protein synthesis begins. 
D)  division begins. 
E)  its contents are digested. 
A)  they both disappear. 
B)  they both return to the Golgi apparatus. 
C)  protein synthesis begins. 
D)  division begins. 
E)  its contents are digested.

Question 8

Which of the following is a prokaryotic cell?

Accepted Answer

A)  plant cell 
B)  liver cell 
C)  muscle cell 
D)  paramecium 
E)  bacterium 
A)  plant cell 
B)  liver cell 
C)  muscle cell 
D)  paramecium 
E)  bacterium

Question 9

If the mitochondrion is the result of endosymbiosis, which membrane of the mitochondrion represents the engulfing vesicle?

Accepted Answer

A)  the outer mitochondrial membrane 
B)  the vacuole membrane 
C)  the nuclear membrane 
D)  the thylakoid membrane 
E)  the inner mitochondrial membrane 
A)  the outer mitochondrial membrane 
B)  the vacuole membrane 
C)  the nuclear membrane 
D)  the thylakoid membrane 
E)  the inner mitochondrial membrane

Question 10

Which of the following is the largest eukaryotic organelle?

Accepted Answer

A)  ribosome 
B)  nucleus 
C)  lysosome 
D)  mitochondria 
E)  Golgi apparatus 
A)  ribosome 
B)  nucleus 
C)  lysosome 
D)  mitochondria 
E)  Golgi apparatus

Question 11

Thylakoids and cristae are, respectively, structures of

Accepted Answer

A)  lysosomes and the endoplasmic reticulum. 
B)  the nucleus and nucleolus. 
C)  chloroplasts and mitochondria. 
D)  mitochondria and chloroplasts. 
E)  the cell wall and the plasma membrane. 
A)  lysosomes and the endoplasmic reticulum. 
B)  the nucleus and nucleolus. 
C)  chloroplasts and mitochondria. 
D)  mitochondria and chloroplasts. 
E)  the cell wall and the plasma membrane.

Question 12

Which structure regulates passage of molecules into and out of the bacterial cell?

Accepted Answer

A)  plasma membrane 
B)  nucleus 
C)  mitochondria 
D)  chloroplast 
E)  flagella 
A)  plasma membrane 
B)  nucleus 
C)  mitochondria 
D)  chloroplast 
E)  flagella

Question 13

Which cellular structure is responsible for packaging materials within the cell?

Accepted Answer

A)  mitochondria 
B)  chloroplasts 
C)  Golgi apparatus 
D)  ribosomes 
E)  lysosomes 
A)  mitochondria 
B)  chloroplasts 
C)  Golgi apparatus 
D)  ribosomes 
E)  lysosomes

Question 14

Where are pigments and toxins stored in plant cells?

Accepted Answer

A)  chloroplast 
B)  lysosomes 
C)  peroxisomes 
D)  vacuole 
E)  mitochondria 
A)  chloroplast 
B)  lysosomes 
C)  peroxisomes 
D)  vacuole 
E)  mitochondria

Question 15

Which of the following structure(s) is/are only found in a plant cell?

Accepted Answer

A)  centrioles 
B)  chloroplast 
C)  chromosomes 
D)  nucleus 
E)  lysosome 
A)  centrioles 
B)  chloroplast 
C)  chromosomes 
D)  nucleus 
E)  lysosome

Question 16

Because mitochondria were once independently living prokaryotic cells, if removed from a eukaryotic cell they can survive independently.

Accepted Answer

A) True 
 B)False

Question 17

Mitochondria are bounded by a double membrane. The inner-filled space is called the matrix, which contains ________ that break down carbohydrate products, releasing ________ to be used for ATP production.

Accepted Answer

A)  DNA/energy 
B)  ribosomes/carbon dioxide 
C)  RNA/energy 
D)  enzymes/energy 
A)  DNA/energy 
B)  ribosomes/carbon dioxide 
C)  RNA/energy 
D)  enzymes/energy

Question 18

Which organelle will give off oxygen and use up carbon dioxide in plants?

Accepted Answer

A)  Golgi apparatus 
B)  rough endoplasmic reticulum 
C)  lysosome 
D)  mitochondrion 
E)  chloroplast 
A)  Golgi apparatus 
B)  rough endoplasmic reticulum 
C)  lysosome 
D)  mitochondrion 
E)  chloroplast

Question 19

A researcher samples the waters of the boiling hot springs in Yellowstone National Park. Under the microscope, she observes what appear to be living cells in the water. If these indeed are living cells, which type of cell would they most likely be?

Accepted Answer

A)  eukaryotic, animal 
B)  eukaryotic, plant 
C)  eukaryotic, fungi 
D)  prokaryotic, archaea 
E)  prokaryotic, bacteria 
A)  eukaryotic, animal 
B)  eukaryotic, plant 
C)  eukaryotic, fungi 
D)  prokaryotic, archaea 
E)  prokaryotic, bacteria

Question 20

Actin filaments, intermediate filaments, and microtubules are all similar in that each is composed of a single type of protein.

Accepted Answer

A) True 
 B)False

Exam 3: Cell Structure and Function

Brock's father has inherited a mitochondrial disease. Is Brock in danger of also having this disease?

Explain the purpose of cilia, flagella, and centrosomes in the cell.

Which of these is unique to plant cells?

The nucleolus

Which nuclear structure(s) contain(s) the hereditary material?

When a lysosome fuses with a vacuole,

Which of the following is a prokaryotic cell?

If the mitochondrion is the result of endosymbiosis, which membrane of the mitochondrion represents the engulfing vesicle?

Which of the following is the largest eukaryotic organelle?

Thylakoids and cristae are, respectively, structures of

Which structure regulates passage of molecules into and out of the bacterial cell?

Which cellular structure is responsible for packaging materials within the cell?

Where are pigments and toxins stored in plant cells?

Which of the following structure(s) is/are only found in a plant cell?

Because mitochondria were once independently living prokaryotic cells, if removed from a eukaryotic cell they can survive independently.

Mitochondria are bounded by a double membrane. The inner-filled space is called the matrix, which contains ________ that break down carbohydrate products, releasing ________ to be used for ATP production.

Which organelle will give off oxygen and use up carbon dioxide in plants?

A researcher samples the waters of the boiling hot springs in Yellowstone National Park. Under the microscope, she observes what appear to be living cells in the water. If these indeed are living cells, which type of cell would they most likely be?

Actin filaments, intermediate filaments, and microtubules are all similar in that each is composed of a single type of protein.

The Study of Life

The Molecules of Cells

Membrane Structure and Function

Cell Division

Metabolism: Energy and Enzymes

Cellular Respiration

Photosynthesis

Plant Organization and Function

Plant Reproduction and Responses

Human Organization

Cardiovascular System

Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System and Excretion

Nervous System

Senses

Musculoskeletal System

Endocrine System

Reproductive System

Development and Aging

Patterns of Gene Inheritance

Chromosomal Basis of Inheritance

Dna Structure and Gene Expression

Biotechnology and Genomics

Evolution of Life

Microbiology

Protists and Fungi

Plants

Animals: the Invertebrates

Animals: Chordates and Vertebrates

Behavioral Ecology

Population and Community Ecology

Nature of Ecosystems

Major Ecosystems of the Biosphere

Conservation Biology

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Mitochondria are bounded by a double membrane. The inner-filled space is called the matrix, which contains that break down carbohydrate products, releasing to be used for ATP production.