Biology 10 Testbank and Answers

Cahpter 10 Biology, 7e (Campbell)
Chapter 10: Photosynthesis

Chapter Questions

1) Organisms that can exist with light as an energy source and an inorganic form of carbon and other raw materials
A) are called photoautotrophs.
B) do not exist in nature.
C) are called heterotrophs.
D) are best classified as decomposers.
E) both C and D
Answer: A
Topic: Overview
Skill: Knowledge

2) Which type of organism obtains energy by metabolizing molecules produced by other organisms?
A) autotrophs
B) heterotrophs
C) decomposers
D) B and C
E) A, B, and C
Answer: D
Topic: Concept 10.1
Skill: Knowledge

3) The early suggestion that the oxygen (O2) liberated from plants during photosynthesis comes from water was
A) first proposed by C.B. van Niel of Stanford University.
B) confirmed by experiments using oxygen-18 (18O).
C) made following the discovery of photorespiration because of rubisco's sensitivity to oxygen.
D) A and B
E) A, B, and C
Answer: D
Topic: Concept 10.1
Skill: Application

4) If photosynthesizing green algae are provided with CO2 synthesized with heavy oxygen (18O), later analysis will show that all but one of the following compounds produced by the algae contain the 18O label. That one exception is
A) PGA.
B) PGAL.
C) glucose.
D) RuBP.
E) O2.
Answer: E
Topic: Concept 10.1
Skill: Comprehension

5) Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?
A) CO2 and glucose
B) H2O and O2
C) ADP, Pi, and NADP+
D) electrons and H+
E) ATP and NADPH
Answer: E
Topic: Concept 10.1
Skill: Comprehension

6) What is the primary function of the light reactions of photosynthesis?
A) to produce energy-rich glucose from carbon dioxide and water
B) to produce ATP and NADPH
C) to produce NADPH used in respiration
D) to convert light energy to the chemical energy of PGAL
E) to use ATP to make glucose
Answer: B
Topic: Concept 10.1
Skill: Comprehension

7) What are the products