Content Frame
Note for screen reader users: There is text between the form elements on this page. To be sure that you do not miss any text, use item by item navigation methods, rather than tabbing from form element to form element
[Skip Breadcrumb Navigation]


This activity contains 41 questions.

Question 1
Open Hint for Question 1 in a new window
Which of these types of organisms produce the biosphere's food supply?
End of Question 1

Question 2
Open Hint for Question 2 in a new window
In rosebushes, chlorophyll is responsible for the process of photosynthesis. Chlorophyll is located in _____.
End of Question 2

Question 3
Open Hint for Question 3 in a new window
Carbon dioxide enters a leaf through the _____.
End of Question 3

Question 4
Open Hint for Question 4 in a new window
Chlorophyll molecules are found in which part of the chloroplast?
End of Question 4

Question 5
Open Hint for Question 5 in a new window
You could distinguish a granum from an inner mitochondrial membrane because the granum, but not the inner mitochondrial membrane, would _____.
End of Question 5

Question 6
Open Hint for Question 6 in a new window
The source of the oxygen produced by photosynthesis has been identified through experiments using radioactive tracers. Follow the equation below and determine where oxygen comes from.

End of Question 6

Question 7
Open Hint for Question 7 in a new window
In photosynthesis, the oxygen atoms present in CO2 end up _____.
End of Question 7

Question 8
Open Hint for Question 8 in a new window
In an experiment, a plant was given _____ containing radioactive 18O, and the radioactive oxygen atoms were used to make sugar.
End of Question 8

Question 9
Open Hint for Question 9 in a new window
Cellular respiration and photosynthesis are similar in that both involve _____.
End of Question 9

Question 10
Open Hint for Question 10 in a new window
The photosynthetic event known as the Calvin cycle occurs in the _____.
End of Question 10

Question 11
Open Hint for Question 11 in a new window
The "photo-" part of the word photosynthesis refers to _____, whereas "-synthesis" refers to _____.
End of Question 11

Question 12
Open Hint for Question 12 in a new window
Considering the wavelengths of light shown below, the pigments in the granum absorb mainly in which range?

End of Question 12

Question 13
Open Hint for Question 13 in a new window
The most important role of pigments in photosynthesis is to _____.
End of Question 13

Question 14
Open Hint for Question 14 in a new window
Which of the following colors is most strongly reflected by chlorophyll?
End of Question 14

Question 15
Open Hint for Question 15 in a new window
When chloroplast pigments absorb light, _____.
End of Question 15

Question 16
Open Hint for Question 16 in a new window
The reaction center, antenna molecules, and primary electron acceptors that cluster in the thylakoid membrane form which structure?
End of Question 16

Question 17
Open Hint for Question 17 in a new window
The synthesis of glucose by photosynthesis is an endergonic process. The source of the energy for the excited electrons is _____.
End of Question 17

Question 18
Open Hint for Question 18 in a new window
The light reactions of photosynthesis generate high-energy electrons, which end up in _____. The light reactions also produce _____ and _____.
End of Question 18

Question 19
Open Hint for Question 19 in a new window
Where do the electrons needed by photosystem II originate?
End of Question 19

Question 20
Open Hint for Question 20 in a new window
As photosynthesis occurs in chloroplasts, O2 is produced from _____ via a series of reactions associated with _____.
End of Question 20

Question 21
Open Hint for Question 21 in a new window
During photosynthesis, an electron transport chain is used to _____.
End of Question 21

Question 22
Open Hint for Question 22 in a new window
Molecular oxygen is produced during _____.
End of Question 22

Question 23
Open Hint for Question 23 in a new window
Light reactions are located in the thylakoid membrane because _____.
End of Question 23

Question 24
Open Hint for Question 24 in a new window
Both mitochondria and chloroplasts _____.
End of Question 24

Question 25
Open Hint for Question 25 in a new window
In addition to its function in mitochondria, the chemiosmotic mechanism is important for generating ATP during the _____.
End of Question 25

Question 26
Open Hint for Question 26 in a new window
The energy used to produce ATP in the light reactions of photosynthesis comes from _____.
End of Question 26

Question 27
Open Hint for Question 27 in a new window
In the Calvin cycle carbon dioxide provides _____, while ATP and NADPH provide _____ and _____, respectively.
End of Question 27

Question 28
Open Hint for Question 28 in a new window
Although the reactions of the Calvin cycle are not directly dependent on light, they usually do not occur at night. Why?
End of Question 28

Question 29
Open Hint for Question 29 in a new window
The Calvin cycle is a series of reactions that _____.
End of Question 29

Question 30
Open Hint for Question 30 in a new window
NADP+ is required for photosynthesis because it _____.
End of Question 30

Question 31
Open Hint for Question 31 in a new window
Rubisco is the _____.
End of Question 31

Question 32
Open Hint for Question 32 in a new window
What is the role of NADP+ in photosynthesis?
End of Question 32

Question 33
Open Hint for Question 33 in a new window
The final output of the Calvin cycle is _____.
End of Question 33

Question 34
Open Hint for Question 34 in a new window
You have a large, healthy philodendron that you carelessly leave in total darkness while you are away on vacation. You are surprised to find that it is still alive when you return. What has the plant been using for an energy source while in the dark?
End of Question 34

Question 35
Open Hint for Question 35 in a new window
A red chemical dye known as phenol red changes to yellow when CO2 is present. A small green plant seedling is placed in phenol red and then placed in the dark. Which of the following is most likely to occur?
End of Question 35

Question 36
Open Hint for Question 36 in a new window
C4 plants have evolved different photosynthetic mechanisms. These plants _____.
End of Question 36

Question 37
Open Hint for Question 37 in a new window
C4 plants fix carbon dioxide in the _____.
End of Question 37

Question 38
Open Hint for Question 38 in a new window
C4 and CAM plants have adapted to living in environments where water loss is a problem. C4 plants fix carbon dioxide _____, whereas CAM plants fix carbon at _____.
End of Question 38

Question 39
Open Hint for Question 39 in a new window
Solar radiation warms the surface of the planet and then is radiated back in the form of _____.
End of Question 39

Question 40
Open Hint for Question 40 in a new window
Which of the following is a synthetic greenhouse gas?
End of Question 40

Question 41
Open Hint for Question 41 in a new window
Which of the following may happen as a result of ozone depletion?
End of Question 41

Clear Answers/Start Over

Pearson Copyright © 1995 - 2011 Pearson Education . All rights reserved. Pearson Benjamin Cummings is an imprint of Pearson .
Legal Notice | Privacy Policy | Permissions

[Return to the Top of this Page]