Question 1

We know that carbon dioxide levels were in the atmosphere millions of years ago through ____.

Accepted Answer

A) radioisotope dating 
B) measuring carbon dioxide levels in fossil fuel samples 
C) measuring carbon isotope ratios in fossil fuel samples 
D) measuring carbon dioxide levels in air pockets in ice cores 
E) measuring carbon isotope ratios in air pockets in ice cores 
A) radioisotope dating 
B) measuring carbon dioxide levels in fossil fuel samples 
C) measuring carbon isotope ratios in fossil fuel samples 
D) measuring carbon dioxide levels in air pockets in ice cores 
E) measuring carbon isotope ratios in air pockets in ice cores

Question 2

Which group of molecules serves as inputs for the light-independent reactions?

Accepted Answer

A) H2O, ATP, and NADPH 
B) CO2, NADPH, and H2O 
C) CO2 and NADPH 
D) ATP, NADPH, H2O, and CO2 
E) NADPH, ATP, and CO2 
A) H2O, ATP, and NADPH 
B) CO2, NADPH, and H2O 
C) CO2 and NADPH 
D) ATP, NADPH, H2O, and CO2 
E) NADPH, ATP, and CO2

Question 3

When fatty acids are broken down to make ATP,which molecule is formed and at which step in aerobic respiration does it enter?

Accepted Answer

A) acetyl CoA, which enters into glycolysis 
B) acetyl CoA, which enters into the Krebs cycle 
C) pyruvate, which enters into the Krebs cycle 
D) PGAL, which enters into electron transfer phosphorylation 
E) PGAL, which enters into glycolysis 
A) acetyl CoA, which enters into glycolysis 
B) acetyl CoA, which enters into the Krebs cycle 
C) pyruvate, which enters into the Krebs cycle 
D) PGAL, which enters into electron transfer phosphorylation 
E) PGAL, which enters into glycolysis

Question 4

During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions  
-Which process is indicated by label 7?

Accepted Answer

A) final acceptor of electrons 
B) transfer of electrons between molecules 
C) release of electrons into the photosystem 
D) active transport of hydrogen ions to establish gradient 
E) passive transport of hydrogen ions down a gradient
F)enzymatic phosphorylation
G)replacement of electrons by hydrolysis 
A) final acceptor of electrons 
B) transfer of electrons between molecules 
C) release of electrons into the photosystem 
D) active transport of hydrogen ions to establish gradient 
E) passive transport of hydrogen ions down a gradient
F)enzymatic phosphorylation
G)replacement of electrons by hydrolysis

Question 5

In lactate fermentation,____ is converted into lactate.

Accepted Answer

A) pyruvate 
B) acetaldehyde 
C) ethanol 
D) glucose 
E) NADH 
A) pyruvate 
B) acetaldehyde 
C) ethanol 
D) glucose 
E) NADH

Question 6

For six molecules of carbon dioxide fixed in the light-independent reaction,how many molecules of PGA are produced?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 12 
E) 18 
A) 2 
B) 4 
C) 6 
D) 12 
E) 18

Question 7

Which of the following molecules is/are formed at the end of the electron transfer process?

Accepted Answer

A) ATP only 
B) NADPH only 
C) ATP and NADPH 
D) NADP+ 
E) ATP and NADP+ 
A) ATP only 
B) NADPH only 
C) ATP and NADPH 
D) NADP+ 
E) ATP and NADP+

Question 8

Why does the efficiency of sugar production decrease when stomata are closed in C3 plants?

Accepted Answer

A) Accumulated oxygen outcompetes carbon dioxide for rubisco's active site. 
B) Depleted carbon dioxide outcompetes oxygen for rubisco's binding site. 
C) Accumulated oxygen inhibits rubisco's function. 
D) Depleted carbon dioxide inhibits rubisco's function. 
E) Depleted carbon dioxide activates rubisco's function. 
A) Accumulated oxygen outcompetes carbon dioxide for rubisco's active site. 
B) Depleted carbon dioxide outcompetes oxygen for rubisco's binding site. 
C) Accumulated oxygen inhibits rubisco's function. 
D) Depleted carbon dioxide inhibits rubisco's function. 
E) Depleted carbon dioxide activates rubisco's function.

Question 9

Chlorophyll a molecules absorb ____ light.

Accepted Answer

A) orange, green and yellow 
B) orange, purple and red 
C) red and yellow 
D) orange and blue 
E) purple, orange, and yellow 
A) orange, green and yellow 
B) orange, purple and red 
C) red and yellow 
D) orange and blue 
E) purple, orange, and yellow

Question 10

When chlorophyll absorbs light energy,____.

Accepted Answer

A) chlorophyll is converted to carotene 
B) the molecules begin to move more rapidly 
C) the plant becomes radioactive 
D) electrons jump to a higher energy level 
E) the molecules become ionized 
A) chlorophyll is converted to carotene 
B) the molecules begin to move more rapidly 
C) the plant becomes radioactive 
D) electrons jump to a higher energy level 
E) the molecules become ionized

Question 11

According to evidence from ice layers from the Antarctic,atmospheric carbon dioxide levels have been rising since ____.

Accepted Answer

A) the dinosaurs went extinct 
B) about 10,000 years ago 
C) the industrial revolution began 
D) the 1970s 
E) human evolved 200,000 years ago 
A) the dinosaurs went extinct 
B) about 10,000 years ago 
C) the industrial revolution began 
D) the 1970s 
E) human evolved 200,000 years ago

Question 12

The three main categories of energy-producing foods are ____.

Accepted Answer

A) fats, carbohydrates and vitamins 
B) fats, vitamins and proteins 
C) fats, carbohydrates and proteins 
D) fats, carbohydrates and alcohol 
E) carbohydrates, vitamins and proteins 
A) fats, carbohydrates and vitamins 
B) fats, vitamins and proteins 
C) fats, carbohydrates and proteins 
D) fats, carbohydrates and alcohol 
E) carbohydrates, vitamins and proteins

Question 13

In alcoholic fermentation,the final product is ____.

Accepted Answer

A) pyruvate 
B) ethanol 
C) acetaldehyde 
D) acetyl CoA 
E) lactate 
A) pyruvate 
B) ethanol 
C) acetaldehyde 
D) acetyl CoA 
E) lactate

Question 14

During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions  
-Which process is indicated by label 4?

Accepted Answer

A) final acceptor of electrons 
B) transfer of electrons between molecules 
C) release of electrons into the photosystem 
D) active transport of hydrogen ions to establish gradient 
E) passive transport of hydrogen ions down a gradient
F)enzymatic phosphorylation
G)replacement of electrons by hydrolysis 
A) final acceptor of electrons 
B) transfer of electrons between molecules 
C) release of electrons into the photosystem 
D) active transport of hydrogen ions to establish gradient 
E) passive transport of hydrogen ions down a gradient
F)enzymatic phosphorylation
G)replacement of electrons by hydrolysis

Question 15

Most of the colors we see around us result from ____.

Accepted Answer

A) reflected light 
B) direct sunlight 
C) absorbed light 
D) the inherent color of the objects we are looking at 
E) a combination of absorbed and reflected light 
A) reflected light 
B) direct sunlight 
C) absorbed light 
D) the inherent color of the objects we are looking at 
E) a combination of absorbed and reflected light

Question 16

Light-independent reactions occur in the ____.

Accepted Answer

A) cytoplasm 
B) chloroplast outer membrane 
C) thylakoid membrane 
D) stroma 
E) matrix 
A) cytoplasm 
B) chloroplast outer membrane 
C) thylakoid membrane 
D) stroma 
E) matrix

Question 17

Fossil fuels ____.

Accepted Answer

A) can be recycled 
B) are produced by living organisms 
C) are the organic remains of ancient organisms 
D) can reduce climate change 
E) release less energy than wood when they are burned 
A) can be recycled 
B) are produced by living organisms 
C) are the organic remains of ancient organisms 
D) can reduce climate change 
E) release less energy than wood when they are burned

Question 18

Cheese,yogurt,and buttermilk are produced by bacteria that form ____.

Accepted Answer

A) ethyl alcohol 
B) acetaldehyde 
C) pyruvate 
D) lactate 
E) citrate 
A) ethyl alcohol 
B) acetaldehyde 
C) pyruvate 
D) lactate 
E) citrate

Question 19

Match each description with the corresponding term.
-A process that uses oxygen

Accepted Answer

A) glycolysis 
B) alcoholic fermentation 
C) lactate fermentation 
D) the Krebs cycle 
E) electron transfer phosphorylation 
A) glycolysis 
B) alcoholic fermentation 
C) lactate fermentation 
D) the Krebs cycle 
E) electron transfer phosphorylation

Question 20

Match each description with the corresponding term.
-The next to the last step in this pathway is the formation of acetaldehyde

Accepted Answer

A) glycolysis 
B) alcoholic fermentation 
C) lactate fermentation 
D) the Krebs cycle 
E) electron transfer phosphorylation 
A) glycolysis 
B) alcoholic fermentation 
C) lactate fermentation 
D) the Krebs cycle 
E) electron transfer phosphorylation

We know that carbon dioxide levels were in the atmosphere millions of years ago through ____.

Which group of molecules serves as inputs for the light-independent reactions?

When fatty acids are broken down to make ATP,which molecule is formed and at which step in aerobic respiration does it enter?

During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions -Which process is indicated by label 7?

In lactate fermentation,____ is converted into lactate.

For six molecules of carbon dioxide fixed in the light-independent reaction,how many molecules of PGA are produced?

Which of the following molecules is/are formed at the end of the electron transfer process?

Why does the efficiency of sugar production decrease when stomata are closed in C3 plants?

Chlorophyll a molecules absorb ____ light.

When chlorophyll absorbs light energy,____.

According to evidence from ice layers from the Antarctic,atmospheric carbon dioxide levels have been rising since ____.

The three main categories of energy-producing foods are ____.

In alcoholic fermentation,the final product is ____.

During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions -Which process is indicated by label 4?

Most of the colors we see around us result from ____.

Light-independent reactions occur in the ____.

Fossil fuels ____.

Cheese,yogurt,and buttermilk are produced by bacteria that form ____.

Match each description with the corresponding term. -A process that uses oxygen

Match each description with the corresponding term. -The next to the last step in this pathway is the formation of acetaldehyde

Invitation To Biology

Molecules Of Life

Cell Structure

Energy And Metabolism

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 5: Capturing And Releasing Energy

We know that carbon dioxide levels were in the atmosphere millions of years ago through ____.

Which group of molecules serves as inputs for the light-independent reactions?

When fatty acids are broken down to make ATP,which molecule is formed and at which step in aerobic respiration does it enter?

During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions -Which process is indicated by label 7?

In lactate fermentation,____ is converted into lactate.

For six molecules of carbon dioxide fixed in the light-independent reaction,how many molecules of PGA are produced?

Which of the following molecules is/are formed at the end of the electron transfer process?

Why does the efficiency of sugar production decrease when stomata are closed in C3 plants?

Chlorophyll a molecules absorb ____ light.

When chlorophyll absorbs light energy,____.

According to evidence from ice layers from the Antarctic,atmospheric carbon dioxide levels have been rising since ____.

The three main categories of energy-producing foods are ____.

In alcoholic fermentation,the final product is ____.

During the light-dependent reactions in the thylakoid membrane, light energy is converted to ATP.Match the specified labels in the diagram with their corresponding functions -Which process is indicated by label 4?

Most of the colors we see around us result from ____.

Light-independent reactions occur in the ____.

Fossil fuels ____.

Cheese,yogurt,and buttermilk are produced by bacteria that form ____.

Match each description with the corresponding term. -A process that uses oxygen

Match each description with the corresponding term. -The next to the last step in this pathway is the formation of acetaldehyde

Invitation To Biology

Molecules Of Life

Cell Structure

Energy And Metabolism

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