Question 1

How do sodium-potassium pumps work?

Accepted Answer

A) Sodium is pumped into the cell and potassium diffuses out. 
B) Sodium is pumped out of the cell and potassium diffuses in. 
C) Sodium and potassium are both pumped into the cell simultaneously. 
D) Sodium and potassium are both pumped out of the cell simultaneously. 
E) Sodium only binds to the pump to make it receptive to potassium which then is pumped into the cell. 
A) Sodium is pumped into the cell and potassium diffuses out. 
B) Sodium is pumped out of the cell and potassium diffuses in. 
C) Sodium and potassium are both pumped into the cell simultaneously. 
D) Sodium and potassium are both pumped out of the cell simultaneously. 
E) Sodium only binds to the pump to make it receptive to potassium which then is pumped into the cell.

Question 2

Match the following questions about cell membrane permeability correctly.
-This process explains movement from areas of higher concentration to areas of lower concentration without the use of supplied energy.

Accepted Answer

A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis 
A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis

Question 3

Match the following questions about cell membrane permeability correctly.
-This process explains the movement of molecules against their concentration gradient.

Accepted Answer

A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis 
A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis

Question 4

Match the following questions about cell membrane permeability correctly.
-This process specifically moves water molecules across a semipermeable membrane.

Accepted Answer

A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis 
A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis

Question 5

Osmosis involves the movement of ____ across a semi-permeable membrane from an area of ____.

Accepted Answer

A) solutes; high solute concentration to an area of low solute concentration 
B) water; high solute concentration to an area of low solute concentration 
C) solvents; high solute concentration to an area of low solute concentration 
D) solutes; low solute concentration to an area of high solute concentration 
E) water; low solute concentration to an area of high solute concentration 
A) solutes; high solute concentration to an area of low solute concentration 
B) water; high solute concentration to an area of low solute concentration 
C) solvents; high solute concentration to an area of low solute concentration 
D) solutes; low solute concentration to an area of high solute concentration 
E) water; low solute concentration to an area of high solute concentration

Question 6

The sodium-potassium pump is an example of ____.

Accepted Answer

A) facilitated diffusion 
B) simple diffusion 
C) osmosis 
D) active transport 
E) bulk flow 
A) facilitated diffusion 
B) simple diffusion 
C) osmosis 
D) active transport 
E) bulk flow

Question 7

When a protein denatures,it ____.

Accepted Answer

A) changes shape 
B) changes temperature 
C) changes pH 
D) binds more efficiently to its cofactor 
E) catalyzes reactions more efficiently 
A) changes shape 
B) changes temperature 
C) changes pH 
D) binds more efficiently to its cofactor 
E) catalyzes reactions more efficiently

Question 8

Substances that enter a reaction are termed ____.

Accepted Answer

A) intermediates 
B) enzymes 
C) energy carriers 
D) reactants 
E) end products 
A) intermediates 
B) enzymes 
C) energy carriers 
D) reactants 
E) end products

Question 9

Match the following questions about cell membrane permeability correctly.
-This process is used by single celled amoeba to ingest and digest bacteria.

Accepted Answer

A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis 
A) simple diffusion 
B) exocytosis 
C) osmosis 
D) active transport 
E) phagocytosis

Question 10

Red blood cells contain 2% salt.What will happen when the cell is placed in a 10% salt solution?

Accepted Answer

A) The cell will burst. 
B) The cell will shrink. 
C) The cell will remain unchanged, but salt will diffuse out of the cell. 
D) The cell will remain unchanged, but salt will diffuse into the cell. 
E) The cell will remain unchanged, but water will diffuse out of the cell. 
A) The cell will burst. 
B) The cell will shrink. 
C) The cell will remain unchanged, but salt will diffuse out of the cell. 
D) The cell will remain unchanged, but salt will diffuse into the cell. 
E) The cell will remain unchanged, but water will diffuse out of the cell.

Question 11

An enzyme's specificity is based on ____.

Accepted Answer

A) the shape of its active site 
B) the amount of activation energy it requires 
C) the number of amino acids in its structure 
D) the nature of its cofactors 
E) the conformation of the products 
A) the shape of its active site 
B) the amount of activation energy it requires 
C) the number of amino acids in its structure 
D) the nature of its cofactors 
E) the conformation of the products

Question 12

Which is true about guncotton?

Accepted Answer

A) It is a highly explosive derivative of cholesterol. 
B) It is used to make gunpowder. 
C) It is less stable than gunpowder. 
D) It is more stable than gunpowder. 
E) It has a higher activation energy for a reaction with oxygen than gunpowder. 
A) It is a highly explosive derivative of cholesterol. 
B) It is used to make gunpowder. 
C) It is less stable than gunpowder. 
D) It is more stable than gunpowder. 
E) It has a higher activation energy for a reaction with oxygen than gunpowder.

Question 13

Consider the ADH reaction below,and answer the following question.ADH stands for alcohol dehydrogenase.   In the reaction above,ethanol represents the ____.

Accepted Answer

A) enzyme 
B) reactant 
C) product 
D) activation energy 
E) trigger 
A) enzyme 
B) reactant 
C) product 
D) activation energy 
E) trigger

Question 14

F.acidarmanus,a species of bacteria that lives in California copper mines,has adapted to its environment by altering the ____ at which its enzymes function.

Accepted Answer

A) temperature 
B) pH 
C) light levels 
D) substrate concentration 
E) salt concentration 
A) temperature 
B) pH 
C) light levels 
D) substrate concentration 
E) salt concentration

Question 15

Answer the questions by matching each word or groups of words with its appropriate question number.
-attaching a phosphate group by forming a higher energy bond

Accepted Answer

A) active site 
B) adenosine triphosphate 
C) electron transfer chain 
D) denaturation 
E) feedback inhibition
F)phosphorylation
G)enzyme
H)cofactor 
A) active site 
B) adenosine triphosphate 
C) electron transfer chain 
D) denaturation 
E) feedback inhibition
F)phosphorylation
G)enzyme
H)cofactor

Question 16

Energy ____.

Accepted Answer

A) can be created, but not destroyed 
B) cannot be created, but can be destroyed 
C) can be created and destroyed 
D) cannot be created or destroyed 
E) can be created using a particle accelerator 
A) can be created, but not destroyed 
B) cannot be created, but can be destroyed 
C) can be created and destroyed 
D) cannot be created or destroyed 
E) can be created using a particle accelerator

Question 17

To engulf a bacterium,a white blood cell would use ____.

Accepted Answer

A) facilitated diffusion 
B) osmosis 
C) phagocytosis 
D) exocytosis 
E) sodium-potassium pumps 
A) facilitated diffusion 
B) osmosis 
C) phagocytosis 
D) exocytosis 
E) sodium-potassium pumps

Question 18

The enzyme that is part of the metabolic pathway that breaks down alcohol is called ____.

Accepted Answer

A) alcohol dehydrogenase 
B) alcohol oxidase 
C) ethanol peroxidase 
D) liver catalase 
E) ethanol protease 
A) alcohol dehydrogenase 
B) alcohol oxidase 
C) ethanol peroxidase 
D) liver catalase 
E) ethanol protease

Question 19

Diffusion of water from a hypertonic solution to a hypotonic solution across a semi-permeable membrane ____.

Accepted Answer

A) will occur until both solutions are isotonic 
B) will occur until both sides are hypotonic 
C) will occur until both sides are hypertonic 
D) will occur until the tonicities are reversed 
E) will not occur 
A) will occur until both solutions are isotonic 
B) will occur until both sides are hypotonic 
C) will occur until both sides are hypertonic 
D) will occur until the tonicities are reversed 
E) will not occur

Question 20

Answer the questions by matching each word or groups of words with its appropriate question number.
-proteins and molecules that generate the energy for the phosphorylation of ADP to ATP

Accepted Answer

A) active site 
B) adenosine triphosphate 
C) electron transfer chain 
D) denaturation 
E) feedback inhibition
F)phosphorylation
G)enzyme
H)cofactor 
A) active site 
B) adenosine triphosphate 
C) electron transfer chain 
D) denaturation 
E) feedback inhibition
F)phosphorylation
G)enzyme
H)cofactor

How do sodium-potassium pumps work?

Match the following questions about cell membrane permeability correctly. -This process explains movement from areas of higher concentration to areas of lower concentration without the use of supplied energy.

Match the following questions about cell membrane permeability correctly. -This process explains the movement of molecules against their concentration gradient.

Match the following questions about cell membrane permeability correctly. -This process specifically moves water molecules across a semipermeable membrane.

Osmosis involves the movement of across a semi-permeable membrane from an area of .

The sodium-potassium pump is an example of ____.

When a protein denatures,it ____.

Substances that enter a reaction are termed ____.

Match the following questions about cell membrane permeability correctly. -This process is used by single celled amoeba to ingest and digest bacteria.

Red blood cells contain 2% salt.What will happen when the cell is placed in a 10% salt solution?

An enzyme's specificity is based on ____.

Which is true about guncotton?

Consider the ADH reaction below,and answer the following question.ADH stands for alcohol dehydrogenase. In the reaction above,ethanol represents the ____.

F.acidarmanus,a species of bacteria that lives in California copper mines,has adapted to its environment by altering the ____ at which its enzymes function.

Answer the questions by matching each word or groups of words with its appropriate question number. -attaching a phosphate group by forming a higher energy bond

Energy ____.

To engulf a bacterium,a white blood cell would use ____.

The enzyme that is part of the metabolic pathway that breaks down alcohol is called ____.

Diffusion of water from a hypertonic solution to a hypotonic solution across a semi-permeable membrane ____.

Answer the questions by matching each word or groups of words with its appropriate question number. -proteins and molecules that generate the energy for the phosphorylation of ADP to ATP

Invitation To Biology

Molecules Of Life

Cell Structure

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 4: Energy And Metabolism

How do sodium-potassium pumps work?

Match the following questions about cell membrane permeability correctly. -This process explains movement from areas of higher concentration to areas of lower concentration without the use of supplied energy.

Match the following questions about cell membrane permeability correctly. -This process explains the movement of molecules against their concentration gradient.

Match the following questions about cell membrane permeability correctly. -This process specifically moves water molecules across a semipermeable membrane.

Osmosis involves the movement of ____ across a semi-permeable membrane from an area of ____.

The sodium-potassium pump is an example of ____.

When a protein denatures,it ____.

Substances that enter a reaction are termed ____.

Match the following questions about cell membrane permeability correctly. -This process is used by single celled amoeba to ingest and digest bacteria.

Red blood cells contain 2% salt.What will happen when the cell is placed in a 10% salt solution?

An enzyme's specificity is based on ____.

Which is true about guncotton?

Consider the ADH reaction below,and answer the following question.ADH stands for alcohol dehydrogenase. In the reaction above,ethanol represents the ____.

F.acidarmanus,a species of bacteria that lives in California copper mines,has adapted to its environment by altering the ____ at which its enzymes function.

Answer the questions by matching each word or groups of words with its appropriate question number. -attaching a phosphate group by forming a higher energy bond

Energy ____.

To engulf a bacterium,a white blood cell would use ____.

The enzyme that is part of the metabolic pathway that breaks down alcohol is called ____.

Diffusion of water from a hypertonic solution to a hypotonic solution across a semi-permeable membrane ____.

Answer the questions by matching each word or groups of words with its appropriate question number. -proteins and molecules that generate the energy for the phosphorylation of ADP to ATP

Invitation To Biology

Molecules Of Life

Cell Structure

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

Osmosis involves the movement of across a semi-permeable membrane from an area of .