Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 24, Problem 4TYU
Photoautotrophs use
- A. light as an energy source and methane as a carbon source.
- B. light as an energy source and CO2 as a carbon source.
- C. H2S as an energy source and CO2 as a carbon source.
- D. CO2 as both an energy source and a carbon source.
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You are growing algae in culture and expose them to CO2 that contains radiolabeled oxygen. Where does the radiolabeled oxygen end up after photosynthesis?
a. water
b. oxygen
c. carbon dioxide
d. carbohydrates
e. carbon monoxide
How are the NADPH and G3P molecules made during photosynthesis similar? a. They are both end products of photosynthesis. b. They are both substrates for photosynthesis. c. They are both produced from carbon dioxide. d. They both store energy in chemical bonds.
In a growing condition with limited air supply, which of the following processes will be directly affected?
a. Photosynthesis
b. Translocation
c. Respiration
d. A and C
Chapter 24 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 24.1 - What hypothesis did Miller test in his classic...Ch. 24.1 - How would the appearance of protocells have...Ch. 24.1 - Prob. 3CCCh. 24.1 - Prob. 4CCCh. 24.2 - Contrast the cellular and DNA structures of...Ch. 24.2 - Distinguish between the four major modes of...Ch. 24.2 - Prob. 3CCCh. 24.2 - Prob. 4CCCh. 24.3 - Although rare on a per gene basis, new mutations...Ch. 24.3 - Distinguish between the three mechanisms by which...
Ch. 24.3 - In a rapidly changing environment, which bacterial...Ch. 24.3 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 24.4 - Explain how molecular systematics and metagenomics...Ch. 24.4 - WHAT IF? What would the discovery of a bacterial...Ch. 24.5 - Explain how prokaryotes, though small, can be...Ch. 24.5 - Prob. 2CCCh. 24.5 - Prob. 3CCCh. 24.5 - Prob. 4CCCh. 24 - Which of the following steps has not yet been...Ch. 24 - Fossilized stromatolites A. more than 2.8 billion...Ch. 24 - Prob. 3TYUCh. 24 - Photoautotrophs use A. light as an energy source...Ch. 24 - Which of the following statements is not true? A....Ch. 24 - Prob. 6TYUCh. 24 - Plantlike photosynthesis that releases O2 occurs...Ch. 24 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 24 - FOCUS ON EVOLUTION In patients infected with...Ch. 24 - FOCUS ON ENERGY AND MATTER In a short essay (about...Ch. 24 - Prob. 11TYU
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- Using the graph comparing photosynthetic rate and absorption of different wavelengths of light, what can be concluded? a) The photosynthesis rate at 550 nm is the highest b) Chlorophyll a absorbs wavelengths at both ends of the spectrum c) Chlorophyll b is associated with the greatest rate of photosynthesis. d) Carotenoids absorb the narrowest range of wavelengths of lightarrow_forwardThe connection between producers and consumers is that only: A) heterotrophs can perform photosynthesis to produce energy for all life B) autotrophs can use sun energy to u to produce energy for all organisms C) producers use cellular respiration to produce energy for all life D) heterotrophs can perform cellular respiration producing oxygen for all organismsarrow_forwardSelect four factors that affect the rate of photosynthesis A) Wind Light Quality B) Oxygen Light Intensity C) Potassium Carbon Dioxide D) Heat Gravityarrow_forward
- In measuring photosynthesis in crop species, you find that two species respond differently to a decrease in the concentration of O2 in the gas surrounding the leaf. One species (Species A) maintains a constant rate of photosynthesis in both high and low O2 concentration while the other exhibits a significant increase in photosynthesis in the low O2 environment. a. Propose a hypothesis to explain this observationb. b. Propose an experiment to test your hypothesis (assume you have access to any necessary tracers and lab facilities).arrow_forwardWhat gas do plants absorb from the atmosphere during photosynthesis? a) Oxygen b) Nitrogen c) Carbon dioxide d) Hydrogenarrow_forwardAnimal cells conduct: A. Cellular Respiration B. Photosynthesis C. Both Plant cells conduct: A. Cellular Respiration B. Photosynthesis C. Botharrow_forward
- Read and analyze the following statements. (i) One of the end products of photosynthesis is the raw material for respiration. (ii) One of the end products of respiration is the raw material for photosynthesis. A. (i) is wrong and (ii) is correct B. both (i) and (ii) are correct C. both (i) and (ii) are wrong D. (i) is correct and (ii) is wrongarrow_forwardThe main purpose of the light-independent reactions is to ________. a. convert solar energy to chemical energy b. convert solar energy to ATP for short-term energy use c. build carbohydrates for long-term energy storagearrow_forwardWrite testable hypothesis regarding how the quality of light (varying in wavelengths) and may affect the rate of photosynthesis. We’ll utilize a model organisms Chlorella (an algae) and detect a pH change in response to rate of photosynthesis. H0: HA:arrow_forward
- Energy for ecosystems can come froma) sunlight via photosynthesis.b) oxidation of reduced inorganic chemicals by chemoautotrophs.c) both a and b.arrow_forwardSelect the best answer describing the role of light in photosynthesis a.It is the source of respiration b.It is the source of carbon for the reaction c.It is the source of energy for the reaction d. all of thesearrow_forwardDefine the following terms: a. photosynthesis b. photosystem c. light harvesting antenna d. reaction center e. chlorophyllarrow_forward
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