Question 1

Cell shape is reinforced by ____.

Accepted Answer

A) phospholipids 
B) DNA 
C) cytoskeletal filaments 
D) transport proteins 
E) ribosomes 
A) phospholipids 
B) DNA 
C) cytoskeletal filaments 
D) transport proteins 
E) ribosomes

Question 2

The plasma membrane _____.

Accepted Answer

A) controls the contents of the cell 
B) is composed mostly of cholesterol 
C) is permeable to ions and polar molecules 
D) is free of proteins 
E) is rigid and impermeable 
A) controls the contents of the cell 
B) is composed mostly of cholesterol 
C) is permeable to ions and polar molecules 
D) is free of proteins 
E) is rigid and impermeable

Question 3

To visualize the structure of DNA,which has a width of 10 nm,which microscope would be best?

Accepted Answer

A) fluorescence microscope 
B) light microscope 
C) staining microscope 
D) polarized microscope 
E) electron microscope 
A) fluorescence microscope 
B) light microscope 
C) staining microscope 
D) polarized microscope 
E) electron microscope

Question 4

The development of the nervous system requires the migration and lengthening of neuronal cells.These events are driven by ____.

Accepted Answer

A) pseudopods 
B) motor proteins 
C) flagella 
D) intermediate filaments 
E) microfilaments 
A) pseudopods 
B) motor proteins 
C) flagella 
D) intermediate filaments 
E) microfilaments

Question 5

In which cell would you most likely find microtubules?

Accepted Answer

A) leaf cells of cut flowers displayed in a vase 
B) any cell from a deceased animal 
C) neuronal cells that have completed their growth and migration during development 
D) rapidly dividing tumor cells 
E) muscle cells, which do not typically divide 
A) leaf cells of cut flowers displayed in a vase 
B) any cell from a deceased animal 
C) neuronal cells that have completed their growth and migration during development 
D) rapidly dividing tumor cells 
E) muscle cells, which do not typically divide

Question 6

The presence of circular DNA in mitochondria and chloroplasts suggests that these organelles evolved from ____.

Accepted Answer

A) bacteria 
B) nuclei 
C) single celled eukaryotes 
D) anaerobic microorganisms 
E) archaea 
A) bacteria 
B) nuclei 
C) single celled eukaryotes 
D) anaerobic microorganisms 
E) archaea

Question 7

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once.
-This organelle is studded with ribosomes.

Accepted Answer

A) nucleus 
B) mitochondrion 
C) lysosome 
D) Golgi body 
E) ribosome
F)rough endoplasmic reticulum
G)smooth endoplasmic reticulum 
A) nucleus 
B) mitochondrion 
C) lysosome 
D) Golgi body 
E) ribosome
F)rough endoplasmic reticulum
G)smooth endoplasmic reticulum

Question 8

Archaea were given their own separate domain because they are ____.

Accepted Answer

A) considered a type of bacteria 
B) most closely related to eukaryotes 
C) multicellular 
D) nucleated 
E) not prokaryotic 
A) considered a type of bacteria 
B) most closely related to eukaryotes 
C) multicellular 
D) nucleated 
E) not prokaryotic

Question 9

Hydrophobic interactions of phospholipid tails make the ____ conformation of cell membranes possible.

Accepted Answer

A) lipid bilayer 
B) single layer 
C) rigid 
D) cytoskeletal 
E) nonpolar 
A) lipid bilayer 
B) single layer 
C) rigid 
D) cytoskeletal 
E) nonpolar

Question 10

What accounts for the fluidity that defines the fluid mosaic model of a typical plasma membrane?

Accepted Answer

A) The proteins, being large, cause the membrane to jiggle around. 
B) The phospholipids collectively form a jelly-like substance similar to the cytoplasm. 
C) The phospholipids are not bonded to each other and thus are freer to move around. 
D) Water molecules infiltrate the bilayer causing it to become more watery and thus more fluid. 
E) The phospholipids in a typical plasma membrane form covalent bonds which are elastic and allow the membrane to stretch. 
A) The proteins, being large, cause the membrane to jiggle around. 
B) The phospholipids collectively form a jelly-like substance similar to the cytoplasm. 
C) The phospholipids are not bonded to each other and thus are freer to move around. 
D) Water molecules infiltrate the bilayer causing it to become more watery and thus more fluid. 
E) The phospholipids in a typical plasma membrane form covalent bonds which are elastic and allow the membrane to stretch.

Question 11

The plasma membrane is composed mostly of ____.

Accepted Answer

A) phospholipids 
B) cholesterol 
C) triglycerides 
D) steroids 
E) sphingolipids 
A) phospholipids 
B) cholesterol 
C) triglycerides 
D) steroids 
E) sphingolipids

Question 12

____ are cellular structures that act like propellers to move a cell through fluid environments.

Accepted Answer

A) Pilli 
B) Microvilli 
C) Cilia 
D) Flagella 
E) Microfilaments 
A) Pilli 
B) Microvilli 
C) Cilia 
D) Flagella 
E) Microfilaments

Question 13

Match each cell structure represented with the appropriate description.
-genetic material

Accepted Answer

A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes 
A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes

Question 14

Eukaryotic cells have their DNA enclosed in the _____.

Accepted Answer

A) plasma membrane 
B) nucleus 
C) nucleoid 
D) nuclear envelope 
E) nucleotide 
A) plasma membrane 
B) nucleus 
C) nucleoid 
D) nuclear envelope 
E) nucleotide

Question 15

Match the following cytoskeletal filaments and their associated motor proteins with the appropriate description.
-made of the protein tubulin and serve as dynamic scaffolding for the cell

Accepted Answer

A) microfilaments 
B) microtubules 
C) dynein 
D) intermediate filaments 
E) myosin 
A) microfilaments 
B) microtubules 
C) dynein 
D) intermediate filaments 
E) myosin

Question 16

A hypothetical "microbullet" shot through a phospholipid bilayer will pass the bilayer components in which order?

Accepted Answer

A) tail →tail → head →head 
B) head → tail → tail → head 
C) head → tail → head → tail 
D) head → head → tail → tail 
E) tail → head → tail → head 
A) tail →tail → head →head 
B) head → tail → tail → head 
C) head → tail → head → tail 
D) head → head → tail → tail 
E) tail → head → tail → head

Question 17

The size of a cell is limited by the ____.

Accepted Answer

A) lack of building materials 
B) size of the organism 
C) relationship between the volume of the cell and its surface area 
D) job it does 
E) materials it has to exchange 
A) lack of building materials 
B) size of the organism 
C) relationship between the volume of the cell and its surface area 
D) job it does 
E) materials it has to exchange

Question 18

Match each cell structure represented with the appropriate description.
-contain enzymes for intracellular digestion

Accepted Answer

A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes 
A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes

Question 19

Which cell feature is absent in bacterial cells?

Accepted Answer

A) ribosomes 
B) cytoplasm 
C) nucleoid 
D) nucleus 
E) DNA 
A) ribosomes 
B) cytoplasm 
C) nucleoid 
D) nucleus 
E) DNA

Question 20

Match each cell structure represented with the appropriate description.
-"false feet" characterized by elongating microtubules

Accepted Answer

A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes 
A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes

Cell shape is reinforced by ____.

The plasma membrane _____.

To visualize the structure of DNA,which has a width of 10 nm,which microscope would be best?

The development of the nervous system requires the migration and lengthening of neuronal cells.These events are driven by ____.

In which cell would you most likely find microtubules?

The presence of circular DNA in mitochondria and chloroplasts suggests that these organelles evolved from ____.

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once. -This organelle is studded with ribosomes.

Archaea were given their own separate domain because they are ____.

Hydrophobic interactions of phospholipid tails make the ____ conformation of cell membranes possible.

What accounts for the fluidity that defines the fluid mosaic model of a typical plasma membrane?

The plasma membrane is composed mostly of ____.

____ are cellular structures that act like propellers to move a cell through fluid environments.

Match each cell structure represented with the appropriate description. -genetic material

Eukaryotic cells have their DNA enclosed in the _____.

Match the following cytoskeletal filaments and their associated motor proteins with the appropriate description. -made of the protein tubulin and serve as dynamic scaffolding for the cell

A hypothetical "microbullet" shot through a phospholipid bilayer will pass the bilayer components in which order?

The size of a cell is limited by the ____.

Match each cell structure represented with the appropriate description. -contain enzymes for intracellular digestion

Which cell feature is absent in bacterial cells?

Match each cell structure represented with the appropriate description. -"false feet" characterized by elongating microtubules

Invitation To Biology

Molecules Of Life

Energy And Metabolism

Capturing And Releasing Energy

DNA Structure And Function

Gene Expression AND Control

How Cells Reproduce

Patterns Of Inheritance

Biotechnology

Evidence Of Evolution

Processes Of Evolution

Early Life Forms And The Viruses

Plants And Fungi

Animal Evolution

Population Ecology

Communities And Ecosystems

The Biosphere And Human Effects

Filters

Exam 3: Cell Structure

Cell shape is reinforced by ____.

The plasma membrane _____.

To visualize the structure of DNA,which has a width of 10 nm,which microscope would be best?

The development of the nervous system requires the migration and lengthening of neuronal cells.These events are driven by ____.

In which cell would you most likely find microtubules?

The presence of circular DNA in mitochondria and chloroplasts suggests that these organelles evolved from ____.

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once. -This organelle is studded with ribosomes.

Archaea were given their own separate domain because they are ____.

Hydrophobic interactions of phospholipid tails make the ____ conformation of cell membranes possible.

What accounts for the fluidity that defines the fluid mosaic model of a typical plasma membrane?

The plasma membrane is composed mostly of ____.

____ are cellular structures that act like propellers to move a cell through fluid environments.

Match each cell structure represented with the appropriate description. -genetic material

Eukaryotic cells have their DNA enclosed in the _____.

Match the following cytoskeletal filaments and their associated motor proteins with the appropriate description. -made of the protein tubulin and serve as dynamic scaffolding for the cell

A hypothetical "microbullet" shot through a phospholipid bilayer will pass the bilayer components in which order?

The size of a cell is limited by the ____.

Match each cell structure represented with the appropriate description. -contain enzymes for intracellular digestion

Which cell feature is absent in bacterial cells?

Match each cell structure represented with the appropriate description. -"false feet" characterized by elongating microtubules

Invitation To Biology

Molecules Of Life

Energy And Metabolism

Capturing And Releasing Energy

DNA Structure And Function

Gene Expression AND Control

How Cells Reproduce

Patterns Of Inheritance

Biotechnology

Evidence Of Evolution

Processes Of Evolution

Early Life Forms And The Viruses

Plants And Fungi

Animal Evolution

Population Ecology

Communities And Ecosystems

The Biosphere And Human Effects

Filters