Question 1

Where are ATP synthase complexes located in plant cells?

Accepted Answer

A)  thylakoid membrane only 
B)  inner mitochondrial membrane only 
C)  thylakoid membrane and inner mitochondrial membrane 
D)  thylakoid membrane and plasma membrane 
A)  thylakoid membrane only 
B)  inner mitochondrial membrane only 
C)  thylakoid membrane and inner mitochondrial membrane 
D)  thylakoid membrane and plasma membrane

Question 2

Which molecule is the final electron acceptor for electrons from photosystem I?

Accepted Answer

A)  oxygen 
B)  chlorophyll in photosystem II 
C)  carbon dioxide 
D)  NADP⁺ 
A)  oxygen 
B)  chlorophyll in photosystem II 
C)  carbon dioxide 
D)  NADP⁺

Question 3

A flask containing photosynthetic green algae and a control flask containing water with no algae are both placed under a bank of lights that is set to cycle between 12 hours of light and 12 hours of dark. The dissolved oxygen concentrations in both flasks are monitored. Predict what the relative dissolved oxygen concentrations will be in the flask with algae compared to the control flask. The dissolved oxygen in the flask with algae will ________.

Accepted Answer

A)  always be higher 
B)  always be lower 
C)  be higher in the light, but the same in the dark 
D)  be higher in the light, but lower in the dark 
A)  always be higher 
B)  always be lower 
C)  be higher in the light, but the same in the dark 
D)  be higher in the light, but lower in the dark

Question 4

Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. Which of the following approaches would be the best way to detect the lack of photosystem II in these organisms?

Accepted Answer

A)  Determine whether they have thylakoid membranes. 
B)  Determine whether they consume CO₂ in the dark. 
C)  Determine whether they produce O₂ in the light. 
D)  Determine the action spectrum for photosynthesis in these organisms. 
A)  Determine whether they have thylakoid membranes. 
B)  Determine whether they consume CO₂ in the dark. 
C)  Determine whether they produce O₂ in the light. 
D)  Determine the action spectrum for photosynthesis in these organisms.

Question 5

To identify the molecule that accepts CO₂, Calvin and Benson manipulated the carbon-fixation cycle by either cutting off CO₂ or cutting off light from cultures of photosynthetic algae. They then measured the concentrations of various metabolites immediately following the manipulation. How would these experiments help identify the CO₂ acceptor?

Accepted Answer

A)  The CO₂ acceptor concentration would decrease when either the CO₂ or light are cut off. 
B)  The CO₂ acceptor concentration would increase when either the CO₂ or light are cut off. 
C)  The CO₂ acceptor concentration would decrease when the CO₂ is cut off, but increase when the light is cut off. 
D)  The CO₂ acceptor concentration would increase when the CO₂ is cut off, but decrease when the light is cut off. 
A)  The CO₂ acceptor concentration would decrease when either the CO₂ or light are cut off. 
B)  The CO₂ acceptor concentration would increase when either the CO₂ or light are cut off. 
C)  The CO₂ acceptor concentration would decrease when the CO₂ is cut off, but increase when the light is cut off. 
D)  The CO₂ acceptor concentration would increase when the CO₂ is cut off, but decrease when the light is cut off.

Exam 10: Photosynthesis

Where are ATP synthase complexes located in plant cells?

Which molecule is the final electron acceptor for electrons from photosystem I?

Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. Which of the following approaches would be the best way to detect the lack of photosystem II in these organisms?

Evolution, the Themes of Biology, and Scientific Inquiry

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Viruses

Dna Tools and Biotechnology

Genomes and Their Evolution

Descent With Modification: a Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonised Land

Plant Diversity Ii: the Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Vascular Plant Structure, Growth, and Development

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons, Synapses, and Signalling

Nervous Systems

Sensory and Motor Mechanisms

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