Question 1

Match between columns
                        Premises: What occurs at the end of the process indicated by label 6?
Which process is indicated by label 4?
Which process is indicated by label 3?
Which process is indicated by label 8?
Which process is indicated by labels 1 and 5?
Which process is indicated by label 2?
Which process is indicated by label 7?

Accepted Answer

The Answer of replacement of electrons by hydrolysis and passive is...

Question 2

Which component is NOT found in a chloroplast?

Accepted Answer

A)  a single outer membrane 
B)  DNA 
C)  ribosomes 
D)  stroma 
E)  thylakoids 
A)  a single outer membrane 
B)  DNA 
C)  ribosomes 
D)  stroma 
E)  thylakoids

Question 3

The stroma of a chloroplast is most like which cellular structure?

Accepted Answer

A)  ribosome 
B)  cell membrane 
C)  the cytoplasm 
D)  nuclei 
E)  mitochondrion 
A)  ribosome 
B)  cell membrane 
C)  the cytoplasm 
D)  nuclei 
E)  mitochondrion

Question 4

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

Question 5

The energy generated in the first electron transfer chain in the light-dependent reactions of photosynthesis is used to ____.

Accepted Answer

A)  split water into oxygen, hydrogen ions, and electrons 
B)  generate NADPH 
C)  power the ATP synthase enzyme to produce ATP 
D)  pump hydrogen ions into the thylakoid compartment 
E)  generate glucose 
A)  split water into oxygen, hydrogen ions, and electrons 
B)  generate NADPH 
C)  power the ATP synthase enzyme to produce ATP 
D)  pump hydrogen ions into the thylakoid compartment 
E)  generate glucose

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

ATP is formed when ____ the thylakoid compartment.

Accepted Answer

A)  hydrogen ions enter 
B)  hydrogen ions leave 
C)  electrons leave 
D)  electrons enter 
E)  water is split in 
A)  hydrogen ions enter 
B)  hydrogen ions leave 
C)  electrons leave 
D)  electrons enter 
E)  water is split in

Question 8

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 9

Hydrogen ion flow out of the thylakoid compartments ____.

Accepted Answer

A)  occurs between photosystems I and II 
B)  is called the hydrogen transfer system 
C)  provides energy to produce ATP molecules 
D)  causes excitation of molecules 
E)  requires the intermediary action of acceptor molecules 
A)  occurs between photosystems I and II 
B)  is called the hydrogen transfer system 
C)  provides energy to produce ATP molecules 
D)  causes excitation of molecules 
E)  requires the intermediary action of acceptor molecules

Question 10

Which source of energy powers the light-independent reactions of photosynthesis?

Accepted Answer

A)  light 
B)  ATP and NADPH 
C)  photosystem II 
D)  glucose 
E)  NADP+ 
A)  light 
B)  ATP and NADPH 
C)  photosystem II 
D)  glucose 
E)  NADP+

Question 11

The most direct product of the Calvin-Benson cycle, which can be used to continue to cycle but which is also exported for other uses such as glucose synthesis, is ____.

Accepted Answer

A)  PGAL 
B)  PGA 
C)  RuBP 
D)  NADPH 
E)  ATP 
A)  PGAL 
B)  PGA 
C)  RuBP 
D)  NADPH 
E)  ATP

Question 12

How many turns of the Calvin-Benson cycle is required to produce one three-carbon sugar?

Accepted Answer

A)  3 
B)  6 
C)  12 
D)  36 
E)  40 
A)  3 
B)  6 
C)  12 
D)  36 
E)  40

Question 13

Consider Calvin-Benson cycle. What is the correct sequence in the series of reactions?
I. carbon fixation
II. regeneration
III. reduction

Accepted Answer

A)  I → II → III 
B)  I → III → II 
C)  II → I → III 
D)  II → III → I 
E)  III → I → II 
A)  I → II → III 
B)  I → III → II 
C)  II → I → III 
D)  II → III → I 
E)  III → I → II

Question 14

Biofuels ____.

Accepted Answer

A)  are a renewable source of energy 
B)  do not produce carbon dioxide when burned 
C)  are made from organic remains of ancient organisms 
D)  release energy without using oxygen 
E)  do not damage the environment 
A)  are a renewable source of energy 
B)  do not produce carbon dioxide when burned 
C)  are made from organic remains of ancient organisms 
D)  release energy without using oxygen 
E)  do not damage the environment

Question 15

In the light-dependent reactions of photosynthesis, NADP+ gets its electrons to become NADPH from ____.

Accepted Answer

A)  ATP synthase 
B)  the flow of hydrogen ions 
C)  electron transfer chains 
D)  oxygen gas 
E)  glucose 
A)  ATP synthase 
B)  the flow of hydrogen ions 
C)  electron transfer chains 
D)  oxygen gas 
E)  glucose

Question 16

In the light-dependent reactions of photosynthesis, what is the ultimate fate of the electrons released from photosystem absorption of light energy?

Accepted Answer

A)  They are combined with NAD+. 
B)  They are combined with ATP. 
C)  They become hydrogen ions. 
D)  They are moved through the electron transport chain. 
E)  They are combined with NADP+ and hydrogen ions to form NADPH. 
A)  They are combined with NAD+. 
B)  They are combined with ATP. 
C)  They become hydrogen ions. 
D)  They are moved through the electron transport chain. 
E)  They are combined with NADP+ and hydrogen ions to form NADPH.

Question 17

During photosynthesis, cells extract energy from ____ to produce glucose.

Accepted Answer

A)  oxygen 
B)  ATP 
C)  NADPH 
D)  water 
E)  sunlight 
A)  oxygen 
B)  ATP 
C)  NADPH 
D)  water 
E)  sunlight

Question 18

The carbon dioxide acceptor in the Calvin-Benson cycle of photosynthesis is ____.

Accepted Answer

A)  phosphoglycerate (PG
A)  
B)  ribulose bisphosphate (RuBP) 
C)  phosphoglyceraldehyde (PGAL) 
D)  glucose 
E)  phosphoenolpyruvate 
A)  phosphoglycerate (PG
A)  
B)  ribulose bisphosphate (RuBP) 
C)  phosphoglyceraldehyde (PGAL) 
D)  glucose 
E)  phosphoenolpyruvate

Question 19

Pigments are ____.

Accepted Answer

A)  inorganic molecules that absorb all light 
B)  organic molecules that absorb all light 
C)  inorganic molecules that absorb specific wavelengths of light 
D)  organic molecules that absorb specific wavelengths of light 
E)  inorganic molecules that reflect specific wavelengths of light 
A)  inorganic molecules that absorb all light 
B)  organic molecules that absorb all light 
C)  inorganic molecules that absorb specific wavelengths of light 
D)  organic molecules that absorb specific wavelengths of light 
E)  inorganic molecules that reflect specific wavelengths of light

Question 20

In cyanobacteria, light-dependent reactions are carried out by molecules in ____.

Accepted Answer

A)  the thylakoid membrane 
B)  chloroplasts 
C)  stroma 
D)  stomata 
E)  outer membrane 
A)  the thylakoid membrane 
B)  chloroplasts 
C)  stroma 
D)  stomata 
E)  outer membrane

Exam 5: Photosynthesis

Which component is NOT found in a chloroplast?

The stroma of a chloroplast is most like which cellular structure?

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

The energy generated in the first electron transfer chain in the light-dependent reactions of photosynthesis is used to ____.

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

ATP is formed when ____ the thylakoid compartment.

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

Hydrogen ion flow out of the thylakoid compartments ____.

Which source of energy powers the light-independent reactions of photosynthesis?

The most direct product of the Calvin-Benson cycle, which can be used to continue to cycle but which is also exported for other uses such as glucose synthesis, is ____.

How many turns of the Calvin-Benson cycle is required to produce one three-carbon sugar?

Consider Calvin-Benson cycle. What is the correct sequence in the series of reactions? I. carbon fixation II. regeneration III. reduction

Biofuels ____.

In the light-dependent reactions of photosynthesis, NADP+ gets its electrons to become NADPH from ____.

In the light-dependent reactions of photosynthesis, what is the ultimate fate of the electrons released from photosystem absorption of light energy?

During photosynthesis, cells extract energy from ____ to produce glucose.

The carbon dioxide acceptor in the Calvin-Benson cycle of photosynthesis is ____.

Pigments are ____.

In cyanobacteria, light-dependent reactions are carried out by molecules in ____.

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Releasing Chemical Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Prokaryotes, Protists, and Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Animal Reproduction and Development

Plant Form and Function

Life Cycles of Flowering Plants

Filters

In the light-dependent reactions of photosynthesis, NADP⁺ gets its electrons to become NADPH from ____.