Question 1

Eukaryotic cells contain membrane-bound organelles.

Accepted Answer

A) True 
 B)False  True

Question 2

The Golgi apparatus

Accepted Answer

A)  is the place where a cell's genetic material is stored. 
B)  sorts proteins and lipids and sends them to their final destination. 
C)  captures energy from sunlight and sends it to mitochondria. 
D)  creates energy by converting ribosomes to proteins. 
A)  is the place where a cell's genetic material is stored. 
B)  sorts proteins and lipids and sends them to their final destination. 
C)  captures energy from sunlight and sends it to mitochondria. 
D)  creates energy by converting ribosomes to proteins. B

Question 3

The nucleolus is

Accepted Answer

A)  the region of the cell where chromosomes are found. 
B)  the name of the double layer of membranes that forms the boundary of the nucleus. 
C)  the region of the nucleus where ribosomes are produced. 
D)  a piece of DNA wrapped around proteins. 
A)  the region of the cell where chromosomes are found. 
B)  the name of the double layer of membranes that forms the boundary of the nucleus. 
C)  the region of the nucleus where ribosomes are produced. 
D)  a piece of DNA wrapped around proteins. C

Question 4

In eukaryotic cells, most of the ATP used for cellular reactions is produced by the specialized, membrane-enclosed compartments know as _____.

Accepted Answer

The answer of In eukaryotic cells, most of the ATP...

Question 5

The inner membranes of both mitochondria and chloroplasts are folded into various arrangements. What is the advantage of having a folded membrane, rather than a simple interior membrane that follows the same oval shape as the exterior membrane?

Accepted Answer

A)  The folds in the membranes are a physical barrier for compounds that attempt to enter the organelle. 
B)  The folds allow for more surface area for the chemical reactions that occur across the inner membranes. 
C)  The folds allow these organelles to interact more efficiently with Golgi bodies. 
D)  The folds cause a necessary change in the organelles' internal pH. 
A)  The folds in the membranes are a physical barrier for compounds that attempt to enter the organelle. 
B)  The folds allow for more surface area for the chemical reactions that occur across the inner membranes. 
C)  The folds allow these organelles to interact more efficiently with Golgi bodies. 
D)  The folds cause a necessary change in the organelles' internal pH.

Question 6

Cilia are usually thicker and longer than flagella.

Accepted Answer

A) True 
 B)False

Question 7

Organisms whose cells lack internal membrane-bound organelles are classified as _______.

Accepted Answer

The answer of Organisms whose cells lack internal membrane-bound organelles...

Question 8

The cell in the figure below is moving by producing pseudopodia. This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled).  
The various labeled lines in the figure above show

Accepted Answer

A)  microtubules elongating at the leading edge of movement. 
B)  microfilaments disassembling at the trailing edge of movement. 
C)  different types of intermediate filaments located in different parts of the cell. 
D)  motor proteins attached to microtubules pushing the plasma membrane forward. 
A)  microtubules elongating at the leading edge of movement. 
B)  microfilaments disassembling at the trailing edge of movement. 
C)  different types of intermediate filaments located in different parts of the cell. 
D)  motor proteins attached to microtubules pushing the plasma membrane forward.

Question 9

The membrane known as the _____ contains light-capturing pigments like chlorophyll.

Accepted Answer

A)  pore 
B)  envelope 
C)  crista 
D)  thylakoid 
A)  pore 
B)  envelope 
C)  crista 
D)  thylakoid

Question 10

Certain cells in your mouth produce large amounts of the enzyme amylase, a component of your saliva that breaks down carbohydrates. Which of the following organelles would you expect to be especially abundant in this cell type?

Accepted Answer

A)  chloroplasts 
B)  mitochondria 
C)  rough endoplasmic reticulum 
D)  lysosomes 
A)  chloroplasts 
B)  mitochondria 
C)  rough endoplasmic reticulum 
D)  lysosomes

Question 11

During the process of photosynthesis, _______ is given off as a by-product.

Accepted Answer

The answer of During the process of photosynthesis, _______ is...

Question 12

The microfilaments that allow cells to move contain the protein __________.

Accepted Answer

The answer of The microfilaments that allow cells to move...

Question 13

Molecules of _______ are consumed by mitochondria during cellular respiration.

Accepted Answer

A)  O₂ 
B)  CO₂ 
C)  H₂O 
D)  NO₂ 
A)  O₂ 
B)  CO₂ 
C)  H₂O 
D)  NO₂

Question 14

The boundary structure that physically defines a cell is the

Accepted Answer

A)  plasma membrane. 
B)  protein channel. 
C)  hydrophilic layer. 
D)  phospholipid side chain. 
A)  plasma membrane. 
B)  protein channel. 
C)  hydrophilic layer. 
D)  phospholipid side chain.

Question 15

Which of the following statements about mitochondria and chloroplasts is false?

Accepted Answer

A)  They were probably primitive eukaryotic cells. 
B)  They contain their own DNA. 
C)  They are able to make some proteins. 
D)  They reproduce independently of the cell in which they reside. 
A)  They were probably primitive eukaryotic cells. 
B)  They contain their own DNA. 
C)  They are able to make some proteins. 
D)  They reproduce independently of the cell in which they reside.

Question 16

A membrane that is selectively permeable causes damage to the cell by allowing solutes to enter and leave the cell indiscriminately.

Accepted Answer

A) True 
 B)False

Question 17

The boundary that surrounds the contents of the nucleus is the

Accepted Answer

A)  plasma membrane. 
B)  nuclear envelope. 
C)  nuclear pore. 
D)  cytosol. 
A)  plasma membrane. 
B)  nuclear envelope. 
C)  nuclear pore. 
D)  cytosol.

Question 18

Prokaryotic cells are generally larger than eukaryotic cells.

Accepted Answer

A) True 
 B)False

Question 19

New memories of fearful experiences are maintained in the brain as a result of

Accepted Answer

A)  the lack of the microtubule-associating protein stathmin. 
B)  the remodeling of microtubules that create the cellular projections that allow neurons to communicate. 
C)  the disassembly of microtubules in regions where neurons send signals to neighboring cells. 
D)  The movement of neurons from one region of the brain to another along "tracks" formed by microtubules. 
A)  the lack of the microtubule-associating protein stathmin. 
B)  the remodeling of microtubules that create the cellular projections that allow neurons to communicate. 
C)  the disassembly of microtubules in regions where neurons send signals to neighboring cells. 
D)  The movement of neurons from one region of the brain to another along "tracks" formed by microtubules.

Question 20

_______ pinch off from a membrane, enclose material, and then fuse with another membrane to release their contents at their destination.

Accepted Answer

The answer of _______ pinch off from a membrane, enclose...

Exam 5: Cell Structure and Internal Compartments

Eukaryotic cells contain membrane-bound organelles.

The Golgi apparatus

The nucleolus is

In eukaryotic cells, most of the ATP used for cellular reactions is produced by the specialized, membrane-enclosed compartments know as _____.

The inner membranes of both mitochondria and chloroplasts are folded into various arrangements. What is the advantage of having a folded membrane, rather than a simple interior membrane that follows the same oval shape as the exterior membrane?

Cilia are usually thicker and longer than flagella.

Organisms whose cells lack internal membrane-bound organelles are classified as _______.

The cell in the figure below is moving by producing pseudopodia. This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled). The various labeled lines in the figure above show

The membrane known as the _____ contains light-capturing pigments like chlorophyll.

Certain cells in your mouth produce large amounts of the enzyme amylase, a component of your saliva that breaks down carbohydrates. Which of the following organelles would you expect to be especially abundant in this cell type?

During the process of photosynthesis, _______ is given off as a by-product.

The microfilaments that allow cells to move contain the protein __________.

Molecules of _______ are consumed by mitochondria during cellular respiration.

The boundary structure that physically defines a cell is the

Which of the following statements about mitochondria and chloroplasts is false?

A membrane that is selectively permeable causes damage to the cell by allowing solutes to enter and leave the cell indiscriminately.

The boundary that surrounds the contents of the nucleus is the

Prokaryotic cells are generally larger than eukaryotic cells.

New memories of fearful experiences are maintained in the brain as a result of

_______ pinch off from a membrane, enclose material, and then fuse with another membrane to release their contents at their destination.

The Nature of Science and the Characteristics of Life

Organizing the Diversity of Life

Major Groups of Living Organisms

Chemical Building Blocks

Cell Membranes, Transport, and Communication

Energy and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

DNA

From Gene to Protein

Control of Gene Expression

DNA Technology

How Evolution Works

Evolution of Populations

Adaptation and Speciation

The Evolutionary History of Life

Maintaining the Internal Environment

Animal Nutrition and Digestion

Gas Exchange

The Circulatory System

Animal Hormones

The Nervous System

Sensing the Environment

Skeletons, Muscles, and Movement

Defenses against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

The Biosphere

Growth of Populations

Interactions among Organisms

Communities of Organisms

Ecosystems

Global Change

Biodiversity and People

Cancer: Cell Division Out of Control

Harnessing the Human Genome

Humans and Evolution

Smoking--Beyond Lung Cancer

Feeding a Hungry Planet

Building a Sustainable Society

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