Question 1

Since cyanobacteria do not contain chloroplasts and yet they photosynthesize,chloroplasts are not required for photosynthesis.

Accepted Answer

A) True 
 B)False

Question 2

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 3

What evidence would not suggest that the fluid in the nucleus is different from the cytoplasm?

Accepted Answer

A)  There is a pH difference between the two fluids. 
B)  The nuclear membrane encloses the nucleoplasm. 
C)  Nuclear pores only permit passage of certain molecules into and out of the nucleus. 
D)  Cytoplasm and nucleoplasm both flow freely into and out of the nucleus. 
E)  Electron microscopy reveals nonmembranous components associated with the nuclear pores. 
A)  There is a pH difference between the two fluids. 
B)  The nuclear membrane encloses the nucleoplasm. 
C)  Nuclear pores only permit passage of certain molecules into and out of the nucleus. 
D)  Cytoplasm and nucleoplasm both flow freely into and out of the nucleus. 
E)  Electron microscopy reveals nonmembranous components associated with the nuclear pores.

Question 4

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 5

The endosymbiotic theory argues that prokaryotes became some of the organelles of early eukaryotic cells.All of the following support this hypothesis EXCEPT

Accepted Answer

A)  The vacuoles can "come and go" across the plasma membrane. 
B)  Mitochondria and chloroplasts have their own DNA. 
C)  Mitochondria and chloroplasts are nearly identical to some free living prokaryotes. 
D)  The mitochondria and chloroplasts have their own DNA AND are nearly identical to some free living prokaryotes. 
E)  Mitochondria and chloroplasts divide by splitting. 
A)  The vacuoles can "come and go" across the plasma membrane. 
B)  Mitochondria and chloroplasts have their own DNA. 
C)  Mitochondria and chloroplasts are nearly identical to some free living prokaryotes. 
D)  The mitochondria and chloroplasts have their own DNA AND are nearly identical to some free living prokaryotes. 
E)  Mitochondria and chloroplasts divide by splitting.

Question 6

Which organelle has a 9 + 0 pattern of microtubules?

Accepted Answer

A)  cilia 
B)  flagella 
C)  centriole 
D)  kinesin 
E)  microtubule 
A)  cilia 
B)  flagella 
C)  centriole 
D)  kinesin 
E)  microtubule

Question 7

Both plant and animal cells have mitochondria because they both

Accepted Answer

A)  carry on photosynthesis. 
B)  have a large central vacuole. 
C)  have endoplasmic reticulum. 
D)  need ATP for energy. 
E)  have lysosomal hydrolytic enzymes. 
A)  carry on photosynthesis. 
B)  have a large central vacuole. 
C)  have endoplasmic reticulum. 
D)  need ATP for energy. 
E)  have lysosomal hydrolytic enzymes.

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

Explain how the nuclear envelope of eukaryotic cells could have arisen.

Accepted Answer

The cell membrane of a prokaryotic cells

Question 10

Which of the following cells was most likely the first type of cells on Earth?

Accepted Answer

A)  Bacteria 
B)  Fungi 
C)  Archaea 
D)  Plants 
E)  Animals 
A)  Bacteria 
B)  Fungi 
C)  Archaea 
D)  Plants 
E)  Animals

Question 11

All of the following are possible origins of cell organelles in eukaryotes EXCEPT

Accepted Answer

A)  invagination of the plasma membrane to form endoplasmic reticulum. 
B)  incorporation of engulfed heterotrophic bacteria to form mitochondria. 
C)  incorporation of engulfed autotrophic cyanobacteria to form chloroplasts. 
D)  a symbiotic relationship between a host cell and a porkaryote that was taken up but not destroyed. 
E)  groups of prokaryotic cells begin to live in a small group sharing products of metabolism. 
A)  invagination of the plasma membrane to form endoplasmic reticulum. 
B)  incorporation of engulfed heterotrophic bacteria to form mitochondria. 
C)  incorporation of engulfed autotrophic cyanobacteria to form chloroplasts. 
D)  a symbiotic relationship between a host cell and a porkaryote that was taken up but not destroyed. 
E)  groups of prokaryotic cells begin to live in a small group sharing products of metabolism.

Question 12

Which type of cells will have modifications that increase the surface-area-to-volume ratio?

Accepted Answer

A)  cells that specialize in absorption 
B)  cells that specialize in gas exchange 
C)  cells that secrete proteins 
D)  cells that secrete lipids 
E)  cells that form a waterproof barrier 
A)  cells that specialize in absorption 
B)  cells that specialize in gas exchange 
C)  cells that secrete proteins 
D)  cells that secrete lipids 
E)  cells that form a waterproof barrier

Question 13

Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion,then

Accepted Answer

A)  vesicles must travel from the Golgi to the cell surface. 
B)  vesicles must travel from the rough ER and smooth ER to the Golgi apparatus. 
C)  the Golgi apparatus must be part of the endomembrane system. 
D)  the Golgi apparatus must consist of 3 to 20 slightly curved sacs. 
E)  the Golgi apparatus would contain proteins. 
A)  vesicles must travel from the Golgi to the cell surface. 
B)  vesicles must travel from the rough ER and smooth ER to the Golgi apparatus. 
C)  the Golgi apparatus must be part of the endomembrane system. 
D)  the Golgi apparatus must consist of 3 to 20 slightly curved sacs. 
E)  the Golgi apparatus would contain proteins.

Question 14

Which eukaryotic organelle is the largest?

Accepted Answer

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

Question 15

Compare the structural differences between actin filaments,intermediate filaments and microtubules.

Accepted Answer

Answers may vary but should include the

Question 16

The nucleolus

Accepted Answer

A)  contains RNA and is found in the nucleus. 
B)  contains DNA 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 DNA 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 17

Which is NOT a function of the cytoskeleton?

Accepted Answer

A)  maintains a cell's shape 
B)  anchors organelles in place within a cell 
C)  allows cell and its organelles to move 
D)  secretes the calcium for bone tissue 
E)  allows the formation of pseudopodia 
A)  maintains a cell's shape 
B)  anchors organelles in place within a cell 
C)  allows cell and its organelles to move 
D)  secretes the calcium for bone tissue 
E)  allows the formation of pseudopodia

Question 18

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 19

Since all organisms carry on cellular respiration,all living cells must contain mitochondria.

Accepted Answer

A) True 
 B)False

Exam 3: Cell Structure and Function

Since cyanobacteria do not contain chloroplasts and yet they photosynthesize,chloroplasts are not required for photosynthesis.

When a lysosome fuses with a vacuole,

What evidence would not suggest that the fluid in the nucleus is different from the cytoplasm?

Thylakoids and cristae are respectively structures of

The endosymbiotic theory argues that prokaryotes became some of the organelles of early eukaryotic cells.All of the following support this hypothesis EXCEPT

Which organelle has a 9 + 0 pattern of microtubules?

Both plant and animal cells have mitochondria because they both

Which of the following is a prokaryotic cell?

Explain how the nuclear envelope of eukaryotic cells could have arisen.

Which of the following cells was most likely the first type of cells on Earth?

All of the following are possible origins of cell organelles in eukaryotes EXCEPT

Which type of cells will have modifications that increase the surface-area-to-volume ratio?

Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion,then

Which eukaryotic organelle is the largest?

Compare the structural differences between actin filaments,intermediate filaments and microtubules.

The nucleolus

Which is NOT a function of the cytoskeleton?

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.

Since all organisms carry on cellular respiration,all living cells must contain mitochondria.

The Study of Life

The Molecules of Cells

Membrane Structure and Function

Cell Division

Metabolism: Energy and Enzymes

Cellular Respiration

Photosynthesis

Plant Organization

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.