Question 1

Where does cellular respiration occur?

Accepted Answer

A)  In the chloroplasts 
B)  In the mitochondria 
C)  In the nucleus 
D)  In the airways of the respiratory system 
A)  In the chloroplasts 
B)  In the mitochondria 
C)  In the nucleus 
D)  In the airways of the respiratory system B

Question 2

The purpose of the Calvin cycle is to produce ________.

Accepted Answer

A)  O₂ 
B)  ATP 
C)  CO₂ 
D)  Sugar 
A)  O₂ 
B)  ATP 
C)  CO₂ 
D)  Sugar D

Question 3

The chemical reactions of photosynthesis occur in which cellular organelle?

Accepted Answer

A)  Chloroplasts 
B)  Nucleus 
C)  Mitochondria 
D)  Ribosomes 
A)  Chloroplasts 
B)  Nucleus 
C)  Mitochondria 
D)  Ribosomes A

Question 4

Which stage of photosynthesis,if any,can function in the dark?

Accepted Answer

A)  Stage 1 (the light reactions) 
B)  Stage 2 (the Calvin cycle) 
C)  Both Stage 1 and Stage 2 
D)  Neither Stage 1 nor Stage 2 
A)  Stage 1 (the light reactions) 
B)  Stage 2 (the Calvin cycle) 
C)  Both Stage 1 and Stage 2 
D)  Neither Stage 1 nor Stage 2

Question 5

Which of the following can carry out photosynthesis?

Accepted Answer

A)  Seaweeds 
B)  Bacteria 
C)  Plants 
D)  All of the above can carry out photosynthesis 
A)  Seaweeds 
B)  Bacteria 
C)  Plants 
D)  All of the above can carry out photosynthesis

Question 6

Organize the following steps of the light reaction in order.

Accepted Answer

A)  Absorb sunlight, capture energy in ATP and NADPH, produce oxygen as a by-product, split water to release electron 
B)  Absorb sunlight, capture energy in ATP and NADPH, split water to release electron, produce oxygen as a by-product 
C)  Absorb sunlight, split water to release electron, produce oxygen as a by-product, capture energy in ATP and NADPH 
D)  Absorb sunlight, produce oxygen as a by-product, split water to release electron, capture energy in ATP and NADPH 
A)  Absorb sunlight, capture energy in ATP and NADPH, produce oxygen as a by-product, split water to release electron 
B)  Absorb sunlight, capture energy in ATP and NADPH, split water to release electron, produce oxygen as a by-product 
C)  Absorb sunlight, split water to release electron, produce oxygen as a by-product, capture energy in ATP and NADPH 
D)  Absorb sunlight, produce oxygen as a by-product, split water to release electron, capture energy in ATP and NADPH

Question 7

Select the ultimate source of energy for nearly every organism on this planet.

Accepted Answer

A)  Plants 
B)  Heat 
C)  The sun 
D)  Sugars 
A)  Plants 
B)  Heat 
C)  The sun 
D)  Sugars

Question 8

How does CO₂ enter a plant?

Accepted Answer

A)  Through the roots 
B)  Through the stomata 
C)  Through the stroma 
D)  Through the grana 
A)  Through the roots 
B)  Through the stomata 
C)  Through the stroma 
D)  Through the grana

Question 9

What molecule(s)link the light reactions (stage 1 of photosynthesis)to the Calvin cycle (stage 2 of photosynthesis)?

Accepted Answer

A)  The oxygen and carbon dioxide molecules 
B)  The electron shuttles (ATP and NADPH) 
C)  The sugars 
D)  The water 
A)  The oxygen and carbon dioxide molecules 
B)  The electron shuttles (ATP and NADPH) 
C)  The sugars 
D)  The water

Question 10

Identify the principal role of cellular respiration.

Accepted Answer

A)  To convert solar energy into the chemical energy of sugars 
B)  To convert kinetic energy into the chemical energy of sugars 
C)  To convert the chemical energy of sugars into the chemical energy that fuels life's processes 
D)  To convert the chemical energy of sugars into heat to maintain an elevated body temperature 
A)  To convert solar energy into the chemical energy of sugars 
B)  To convert kinetic energy into the chemical energy of sugars 
C)  To convert the chemical energy of sugars into the chemical energy that fuels life's processes 
D)  To convert the chemical energy of sugars into heat to maintain an elevated body temperature

Question 11

The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period.
  
-What is a possible reason for oxygen to be so low by the end of the night?

Accepted Answer

A)  Algae produce oxygen as a by-product of photosynthesis mostly during the day, and not at night. 
B)  Fish consume oxygen during the night, and oxygen starts to run out by dawn. 
C)  Both of these explain the low level of oxygen 
D)  Neither of these explains the low level of oxygen 
A)  Algae produce oxygen as a by-product of photosynthesis mostly during the day, and not at night. 
B)  Fish consume oxygen during the night, and oxygen starts to run out by dawn. 
C)  Both of these explain the low level of oxygen 
D)  Neither of these explains the low level of oxygen

Question 12

How do we know green light is not absorbed by chlorophyll?

Accepted Answer

A)  Green light is the wavelength of light that is reflected instead of absorbed by the chloroplasts. 
B)  Not enough of the green light penetrates the ozone layer and makes it to the plant. 
C)  Green light has such a small wavelength that most of it goes straight through the leaves without interacting with the chlorophyll. 
D)  Green light does not have enough energy to excite an electron in the photosystem. 
A)  Green light is the wavelength of light that is reflected instead of absorbed by the chloroplasts. 
B)  Not enough of the green light penetrates the ozone layer and makes it to the plant. 
C)  Green light has such a small wavelength that most of it goes straight through the leaves without interacting with the chlorophyll. 
D)  Green light does not have enough energy to excite an electron in the photosystem.

Question 13

Explain how molecules other than glucose can be used as energy sources.

Accepted Answer

A)  They can't; cellular respiration is limited to glucose. 
B)  They have their own unique metabolic pathways. 
C)  They are modified first and then enter the same metabolic pathway as glucose. 
D)  Fats, proteins, and other carbohydrates are similar enough to glucose that they utilize the same metabolic pathway without any modifications. 
A)  They can't; cellular respiration is limited to glucose. 
B)  They have their own unique metabolic pathways. 
C)  They are modified first and then enter the same metabolic pathway as glucose. 
D)  Fats, proteins, and other carbohydrates are similar enough to glucose that they utilize the same metabolic pathway without any modifications.

Question 14

Water behind a dam has a certain amount of stored energy that can be released as the water falls over the top of the dam.It may be enough energy to turn a mill wheel or an electricity-generating turbine.Choose the term that best describes the type of energy stored in the water at the top of the dam.

Accepted Answer

A)  Chemical 
B)  Potential 
C)  Radiant 
D)  Kinetic 
A)  Chemical 
B)  Potential 
C)  Radiant 
D)  Kinetic

Question 15

What is the role of mitochondria in plants?

Accepted Answer

A)  Produce ATP 
B)  Carry out photosynthesis 
C)  Produce sugars 
D)  None, as plants do not have mitochondria 
A)  Produce ATP 
B)  Carry out photosynthesis 
C)  Produce sugars 
D)  None, as plants do not have mitochondria

Question 16

What is the chemical equation for glucose?

Accepted Answer

A)  C₂H₄O₂ 
B)  C₄ H₈O₄ 
C)  C₆H₁₂O₆ 
D)  C₈H₁₆O₈ 
A)  C₂H₄O₂ 
B)  C₄ H₈O₄ 
C)  C₆H₁₂O₆ 
D)  C₈H₁₆O₈

Question 17

What is the role of chloroplasts in animals?

Accepted Answer

A)  Produce ATP 
B)  Carry out photosynthesis 
C)  Produce sugars 
D)  None, as animals do not have chloroplasts 
A)  Produce ATP 
B)  Carry out photosynthesis 
C)  Produce sugars 
D)  None, as animals do not have chloroplasts

Question 18

Why do some leaves change color (red,yellow,orange,etc.)in the fall?

Accepted Answer

A)  The chlorophyll molecule is modified to absorb different wavelengths of light. 
B)  The chlorophyll molecule breaks down and other pigments now become visible. 
C)  When leaves die, the chlorophyll molecules are no longer visible. 
D)  Cold weather denatures the chlorophyll molecule, and it begins to reflect different colors. 
A)  The chlorophyll molecule is modified to absorb different wavelengths of light. 
B)  The chlorophyll molecule breaks down and other pigments now become visible. 
C)  When leaves die, the chlorophyll molecules are no longer visible. 
D)  Cold weather denatures the chlorophyll molecule, and it begins to reflect different colors.

Question 19

Which processes can be carried out by consumers?

Accepted Answer

A)  Only photosynthesis 
B)  Only cellular respiration 
C)  Both photosynthesis and cellular respiration 
D)  Neither photosynthesis nor cellular respiration 
A)  Only photosynthesis 
B)  Only cellular respiration 
C)  Both photosynthesis and cellular respiration 
D)  Neither photosynthesis nor cellular respiration

Question 20

Explain why mitochondria are often called "the powerhouse of the cell."

Accepted Answer

Mitochondria are often called the powerh

Where does cellular respiration occur?

The purpose of the Calvin cycle is to produce ________.

The chemical reactions of photosynthesis occur in which cellular organelle?

Which stage of photosynthesis,if any,can function in the dark?

Which of the following can carry out photosynthesis?

Organize the following steps of the light reaction in order.

Select the ultimate source of energy for nearly every organism on this planet.

How does CO₂ enter a plant?

What molecule(s)link the light reactions (stage 1 of photosynthesis)to the Calvin cycle (stage 2 of photosynthesis)?

Identify the principal role of cellular respiration.

The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period. -What is a possible reason for oxygen to be so low by the end of the night?

How do we know green light is not absorbed by chlorophyll?

Explain how molecules other than glucose can be used as energy sources.

Water behind a dam has a certain amount of stored energy that can be released as the water falls over the top of the dam.It may be enough energy to turn a mill wheel or an electricity-generating turbine.Choose the term that best describes the type of energy stored in the water at the top of the dam.

What is the role of mitochondria in plants?

What is the chemical equation for glucose?

What is the role of chloroplasts in animals?

Why do some leaves change color (red,yellow,orange,etc.)in the fall?

Which processes can be carried out by consumers?

Explain why mitochondria are often called "the powerhouse of the cell."

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Chromosomes and Inheritance

Dna: the Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Exam 4: Energy and Life

Where does cellular respiration occur?

The purpose of the Calvin cycle is to produce ________.

The chemical reactions of photosynthesis occur in which cellular organelle?

Which stage of photosynthesis,if any,can function in the dark?

Which of the following can carry out photosynthesis?

Organize the following steps of the light reaction in order.

Select the ultimate source of energy for nearly every organism on this planet.

How does CO₂ enter a plant?

What molecule(s)link the light reactions (stage 1 of photosynthesis)to the Calvin cycle (stage 2 of photosynthesis)?

Identify the principal role of cellular respiration.

The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period. -What is a possible reason for oxygen to be so low by the end of the night?

How do we know green light is not absorbed by chlorophyll?

Explain how molecules other than glucose can be used as energy sources.

What is the role of mitochondria in plants?

What is the chemical equation for glucose?

What is the role of chloroplasts in animals?

Why do some leaves change color (red,yellow,orange,etc.)in the fall?

Which processes can be carried out by consumers?

Explain why mitochondria are often called "the powerhouse of the cell."

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Chromosomes and Inheritance

Dna: the Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters