Question 1

Match the following cellular structures with their primary function (you may need to use a function more than once).
-cytoskeleton

Accepted Answer

A) photosynthesis 
B) regulate what moves in and out of cell 
C) structure and support for cell 
D) lipid synthesis 
E) tags proteins for movement
F)enzymatic breakdown of large molecules
G)protein synthesis
H)cellular respiration
I)water and solute storage
J)location of DNA
K)internal organization and structural support 
A) photosynthesis 
B) regulate what moves in and out of cell 
C) structure and support for cell 
D) lipid synthesis 
E) tags proteins for movement
F)enzymatic breakdown of large molecules
G)protein synthesis
H)cellular respiration
I)water and solute storage
J)location of DNA
K)internal organization and structural support

Question 2

All cells have a ________ that acts as a barrier separating the cellular components from the external environment.

Accepted Answer

The answer of All cells have a ________ that acts...

Question 3

Which of the following would be likely to require facilitated diffusion to move across the plasma membrane?

Accepted Answer

A)  water (H₂O) 
B)  sodium ions (Na⁺), hydrogen ions (H⁺), sugars, and amino acids 
C)  oxygen (O₂) 
D)  carbon dioxide (CO₂) 
A)  water (H₂O) 
B)  sodium ions (Na⁺), hydrogen ions (H⁺), sugars, and amino acids 
C)  oxygen (O₂) 
D)  carbon dioxide (CO₂)

Question 4

The figure below depicts a transport protein in a plasma membrane.The dark blue molecules represent a protein that is being transported out of the cell.Is the transport of the protein active or passive? Support your answer by describing evidence visible in the figure and stating its significance regarding your answer.

Accepted Answer

The protein transport is active transpor

Question 5

During the process of ________,water diffuses across a semipermeable membrane from an area where water is more concentrated to an area where water is less concentrated (it moves along the water concentration gradient).

Accepted Answer

A)  osmosis 
B)  simple diffusion 
C)  facilitated diffusion 
D)  pinocytosis 
A)  osmosis 
B)  simple diffusion 
C)  facilitated diffusion 
D)  pinocytosis

Question 6

Cells naturally,without using energy,respond to changes in water concentration through the process of

Accepted Answer

A)  facilitated diffusion. 
B)  osmosis. 
C)  phagocytosis. 
D)  active transport. 
A)  facilitated diffusion. 
B)  osmosis. 
C)  phagocytosis. 
D)  active transport.

Question 7

Why would hydrophilic substances such as sodium ions (Na⁺),hydrogen ions (H⁺),sugars,and amino acids be unable to simply diffuse across a plasma membrane?

Accepted Answer

A)  They readily mix with the hydrophobic tails forming the core of the phospholipid bilayer. 
B)  They are repelled by the hydrophilic heads of the phospholipids that form the phospholipid bilayer. 
C)  They do not readily mix with the hydrophobic tails forming the core of the phospholipid bilayer; therefore, they must move across by facilitated diffusion. 
D)  They do not readily mix with the hydrophobic tails forming the core of the phospholipid bilayer; therefore, the only way they can move into the cell is by endocytosis. 
A)  They readily mix with the hydrophobic tails forming the core of the phospholipid bilayer. 
B)  They are repelled by the hydrophilic heads of the phospholipids that form the phospholipid bilayer. 
C)  They do not readily mix with the hydrophobic tails forming the core of the phospholipid bilayer; therefore, they must move across by facilitated diffusion. 
D)  They do not readily mix with the hydrophobic tails forming the core of the phospholipid bilayer; therefore, the only way they can move into the cell is by endocytosis.

Question 8

Some antibiotics used to treat bacterial infections kill the bacteria by chemically punching holes in the cell wall of the bacteria,by preventing the bacteria from replicating their DNA,or by many other actions that ultimately cause cell death.Why do these antibiotics not work to kill viruses and cure people of viral infections?

Accepted Answer

A)  Antibiotics cannot kill a virus because viruses are not living cells with cell walls to puncture, nor do they have their own organelles to replicate DNA. 
B)  Viruses are too virulent to be killed by those antibiotics. 
C)  Viruses are too quick for the antibiotics to work. 
D)  Viruses mutate at a rate faster than the rate at which antibiotics can kill them. 
A)  Antibiotics cannot kill a virus because viruses are not living cells with cell walls to puncture, nor do they have their own organelles to replicate DNA. 
B)  Viruses are too virulent to be killed by those antibiotics. 
C)  Viruses are too quick for the antibiotics to work. 
D)  Viruses mutate at a rate faster than the rate at which antibiotics can kill them.

Question 9

Which of the following accurately describes viruses?

Accepted Answer

A)  They are small, cellular infectious agents that are only capable of reproducing when inside a living cell, and they can attack plants as well as animals. 
B)  Each is typically a piece of genetic material encased in proteins, and they can reproduce on their own. 
C)  They can attack plants, animals, and protozoans, and each is typically a piece of self-replicating genetic material encased in proteins. 
D)  Typically a piece of genetic material encased in proteins, viruses are small, noncellular infectious agents that are only capable of reproducing when inside a living cell such as those of plants, animals, fungi, protozoans, or bacteria. 
A)  They are small, cellular infectious agents that are only capable of reproducing when inside a living cell, and they can attack plants as well as animals. 
B)  Each is typically a piece of genetic material encased in proteins, and they can reproduce on their own. 
C)  They can attack plants, animals, and protozoans, and each is typically a piece of self-replicating genetic material encased in proteins. 
D)  Typically a piece of genetic material encased in proteins, viruses are small, noncellular infectious agents that are only capable of reproducing when inside a living cell such as those of plants, animals, fungi, protozoans, or bacteria.

Question 10

Which of the following is a part of accepted cell theory?

Accepted Answer

A)  Every living organism is composed of one or more cells, and all living cells have membrane-enclosed organelles. 
B)  All living cells arise from preexisting cells, and all living cells have membrane-enclosed organelles. 
C)  All living cells have membrane-enclosed organelles. 
D)  Every living organism is composed of one or more cells, and all living cells arise from preexisting cells. 
A)  Every living organism is composed of one or more cells, and all living cells have membrane-enclosed organelles. 
B)  All living cells arise from preexisting cells, and all living cells have membrane-enclosed organelles. 
C)  All living cells have membrane-enclosed organelles. 
D)  Every living organism is composed of one or more cells, and all living cells arise from preexisting cells.

Question 11

Match the following cellular structures with their primary function (you may need to use a function more than once).
-lysosome

Accepted Answer

A) photosynthesis 
B) regulate what moves in and out of cell 
C) structure and support for cell 
D) lipid synthesis 
E) tags proteins for movement
F)enzymatic breakdown of large molecules
G)protein synthesis
H)cellular respiration
I)water and solute storage
J)location of DNA
K)internal organization and structural support 
A) photosynthesis 
B) regulate what moves in and out of cell 
C) structure and support for cell 
D) lipid synthesis 
E) tags proteins for movement
F)enzymatic breakdown of large molecules
G)protein synthesis
H)cellular respiration
I)water and solute storage
J)location of DNA
K)internal organization and structural support

Question 12

A white blood cell (WBC)encounters bacteria in a scrape on the knee of a child who has fallen off of his bicycle.The WBC's job is to take the bacteria inside of itself and destroy the bacteria.If the bacteria cannot be moved across the WBC membrane,how will the WBC most likely take it in?

Accepted Answer

A)  exocytosis 
B)  pinocytosis 
C)  facilitated diffusion 
D)  phagocytosis 
A)  exocytosis 
B)  pinocytosis 
C)  facilitated diffusion 
D)  phagocytosis

Question 13

Human muscle cells need large amounts of ATP to function in the movement of the body,which is why ________ are especially abundant in muscle cells.

Accepted Answer

A)  mitochondria 
B)  ribosomes 
C)  smooth endoplasmic reticulum 
D)  lysosomes 
A)  mitochondria 
B)  ribosomes 
C)  smooth endoplasmic reticulum 
D)  lysosomes

Question 14

Examine the figure below.Assume each sugar molecule represents a percentage point of sugar dissolved in the solution.Over time,the solution level on the left side of the figure would ________,while the solution level on the right side of the figure would ________.This is because the solution on the left side of the figure is ________,while the solution on the right side of the figure is ________.

Accepted Answer

A)  rise; decrease; hypertonic; hypotonic 
B)  decrease; rise; hypertonic; hypotonic 
C)  decrease; rise; hypotonic; hypertonic 
D)  There will be no net movement of water because the solutions are isotonic. 
A)  rise; decrease; hypertonic; hypotonic 
B)  decrease; rise; hypertonic; hypotonic 
C)  decrease; rise; hypotonic; hypertonic 
D)  There will be no net movement of water because the solutions are isotonic.

Question 15

The smooth endoplasmic reticulum

Accepted Answer

A)  is the site where lipids destined for other cellular compartments are manufactured. 
B)  produces the energy needed to run chemical reactions in the cell. 
C)  converts sunlight into chemical energy. 
D)  stores water, nutrients, and enzymes. 
A)  is the site where lipids destined for other cellular compartments are manufactured. 
B)  produces the energy needed to run chemical reactions in the cell. 
C)  converts sunlight into chemical energy. 
D)  stores water, nutrients, and enzymes.

Question 16

Adenine (A),thymine (T),guanine (G),and cytosine (C)are the ________ building blocks for DNA; they are organized in different combinations to code for all of the proteins needed to accomplish everything the cell does.

Accepted Answer

A)  carbohydrate 
B)  nucleotide 
C)  protein 
D)  lipid 
A)  carbohydrate 
B)  nucleotide 
C)  protein 
D)  lipid

Question 17

Using what you know about cell theory and viruses,explain why viruses are not alive.

Accepted Answer

Cell theory states that all living thing

Question 18

Match the following cellular structures with their primary function (you may need to use a function more than once).
-rough endoplasmic reticulum

Accepted Answer

A) photosynthesis 
B) regulate what moves in and out of cell 
C) structure and support for cell 
D) lipid synthesis 
E) tags proteins for movement
F)enzymatic breakdown of large molecules
G)protein synthesis
H)cellular respiration
I)water and solute storage
J)location of DNA
K)internal organization and structural support 
A) photosynthesis 
B) regulate what moves in and out of cell 
C) structure and support for cell 
D) lipid synthesis 
E) tags proteins for movement
F)enzymatic breakdown of large molecules
G)protein synthesis
H)cellular respiration
I)water and solute storage
J)location of DNA
K)internal organization and structural support

Question 19

Cells lining blood vessels can form vesicles outside of the cell that can fold into the cell taking in liquids and solutes from the bloodstream.This is an example of

Accepted Answer

A)  pinocytosis. 
B)  receptor-mediated endocytosis. 
C)  exocytosis. 
D)  phagocytosis. 
A)  pinocytosis. 
B)  receptor-mediated endocytosis. 
C)  exocytosis. 
D)  phagocytosis.

Question 20

Indicate which cell in the figure below is the plant cell and which is the animal cell.Label all cellular structures 1-12 in both cells.Include a brief description of each organelle's function with its label.

Accepted Answer

The cell on the left is the animal cell.

Match the following cellular structures with their primary function (you may need to use a function more than once). -cytoskeleton

All cells have a ________ that acts as a barrier separating the cellular components from the external environment.

Which of the following would be likely to require facilitated diffusion to move across the plasma membrane?

During the process of ________,water diffuses across a semipermeable membrane from an area where water is more concentrated to an area where water is less concentrated (it moves along the water concentration gradient).

Cells naturally,without using energy,respond to changes in water concentration through the process of

Why would hydrophilic substances such as sodium ions (Na⁺),hydrogen ions (H⁺),sugars,and amino acids be unable to simply diffuse across a plasma membrane?

Which of the following accurately describes viruses?

Which of the following is a part of accepted cell theory?

Match the following cellular structures with their primary function (you may need to use a function more than once). -lysosome

A white blood cell (WBC)encounters bacteria in a scrape on the knee of a child who has fallen off of his bicycle.The WBC's job is to take the bacteria inside of itself and destroy the bacteria.If the bacteria cannot be moved across the WBC membrane,how will the WBC most likely take it in?

Human muscle cells need large amounts of ATP to function in the movement of the body,which is why ________ are especially abundant in muscle cells.

The smooth endoplasmic reticulum

Adenine (A),thymine (T),guanine (G),and cytosine (C)are the ________ building blocks for DNA; they are organized in different combinations to code for all of the proteins needed to accomplish everything the cell does.

Using what you know about cell theory and viruses,explain why viruses are not alive.

Match the following cellular structures with their primary function (you may need to use a function more than once). -rough endoplasmic reticulum

Cells lining blood vessels can form vesicles outside of the cell that can fold into the cell taking in liquids and solutes from the bloodstream.This is an example of

Indicate which cell in the figure below is the plant cell and which is the animal cell.Label all cellular structures 1-12 in both cells.Include a brief description of each organelle's function with its label.

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Bacteria and Archaea

Plants, Fungi, and Protists

Animals and Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Filters

Exam 4: Life Is Cellular

Match the following cellular structures with their primary function (you may need to use a function more than once). -cytoskeleton

All cells have a ________ that acts as a barrier separating the cellular components from the external environment.

Which of the following would be likely to require facilitated diffusion to move across the plasma membrane?

During the process of ________,water diffuses across a semipermeable membrane from an area where water is more concentrated to an area where water is less concentrated (it moves along the water concentration gradient).

Cells naturally,without using energy,respond to changes in water concentration through the process of

Why would hydrophilic substances such as sodium ions (Na⁺),hydrogen ions (H⁺),sugars,and amino acids be unable to simply diffuse across a plasma membrane?

Which of the following accurately describes viruses?

Which of the following is a part of accepted cell theory?

Match the following cellular structures with their primary function (you may need to use a function more than once). -lysosome

A white blood cell (WBC)encounters bacteria in a scrape on the knee of a child who has fallen off of his bicycle.The WBC's job is to take the bacteria inside of itself and destroy the bacteria.If the bacteria cannot be moved across the WBC membrane,how will the WBC most likely take it in?

Human muscle cells need large amounts of ATP to function in the movement of the body,which is why ________ are especially abundant in muscle cells.

The smooth endoplasmic reticulum

Adenine (A),thymine (T),guanine (G),and cytosine (C)are the ________ building blocks for DNA; they are organized in different combinations to code for all of the proteins needed to accomplish everything the cell does.

Using what you know about cell theory and viruses,explain why viruses are not alive.

Match the following cellular structures with their primary function (you may need to use a function more than once). -rough endoplasmic reticulum

Cells lining blood vessels can form vesicles outside of the cell that can fold into the cell taking in liquids and solutes from the bloodstream.This is an example of

Indicate which cell in the figure below is the plant cell and which is the animal cell.Label all cellular structures 1-12 in both cells.Include a brief description of each organelle's function with its label.

The Nature of Science

Evaluating Scientific Claims

Chemistry of Life

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Bacteria and Archaea

Plants, Fungi, and Protists

Animals and Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Filters