WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 4, Problem 8MC
Summary Introduction
Introduction:
Photons are packets of energy in the form of
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Which of the following statements about chlorophyll is correct?
It reflects high-energy electrons.
It appears green because it absorbs light in the green light spectrum.
B.
It reflects all colors in the light spectrum except green.
OC.
It reflects light in the green light spectrum.
Which of the following is true of chloroplastic ATP:
Select one:
a.
it is made in the Calvin cycle and consumed in the light reactions
b.
it is used during photosynthesis, S assimilation, and N assimilation
c.
it does not leave the chloroplast, and is used to breakdown molecules
d.
it is made during photosynthesis and S assimilation
e.
it leaves the chloroplast, and is consumed in respiration and N assimilation
If a plant is removed from its natural environment and exposed to 100 percent CO2 composed of the radioisotope 14C, which of the following will not occur?
Select one:
a. The rate of photorespiration will remain unchanged.
b. The sugars synthesized by the plant will be radioactive.
c. The oxygen released will also be radioactive.
d. All the carbon molecules in the RuBP molecules will eventually become 14C.
e. Rubisco will eventually contain 14C.
Chapter 4 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
Ch. 4 - Prob. 1SACh. 4 - Prob. 2SACh. 4 - Prob. 3SACh. 4 - Prob. 4SACh. 4 - Prob. 5SACh. 4 - Prob. 6SACh. 4 - Prob. 7SACh. 4 - Prob. 8SACh. 4 - Prob. 9SACh. 4 - Prob. 10SA
Ch. 4 - Prob. 11SACh. 4 - Prob. 12SACh. 4 - Prob. 13SACh. 4 - Prob. 14SACh. 4 - Prob. 15SACh. 4 - Prob. 16SACh. 4 - Prob. 17SACh. 4 - Prob. 1MCCh. 4 - Prob. 2MCCh. 4 - Prob. 3MCCh. 4 - Prob. 4MCCh. 4 - Prob. 5MCCh. 4 - Prob. 6MCCh. 4 - Prob. 7MCCh. 4 - Prob. 8MCCh. 4 - Prob. 9MCCh. 4 - Prob. 10MCCh. 4 - Prob. 11MCCh. 4 - Prob. 12MCCh. 4 - Prob. 13MCCh. 4 - Prob. 14MCCh. 4 - Prob. 15MCCh. 4 - Prob. 16MCCh. 4 - Prob. 17MC
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- The transfer of electrons in a photosystem creates a membrane potential with a _______ concentration of H+ molecules on the inside of the membrane and a ______ concentration on the outside of the membrane. A. higher; lower B. lower; higherarrow_forwardIn the photosynthetic formation of ATP, the enzyme ATP synthase couples the synthesis of ATP to: A. the diffusion of protons B. the reduction of NADP+ C. the excitation of chlorophyll D. the reduction of chlorophyll E. CO2 fixationarrow_forwardDiagram 3: Light Wave Absorption of Chlorophyll a and b. Chlorophyll a Chlorophyll b 400 450 500 550 600 650 700 Wavelength (nm) Plant chlorophyll chemicals will absorb, or take in, light wave energy in order to produce their own organic molecules used for cellular energy. Reflected light refers to those wavelengths of light that will "bounce off" of the chlorophyll and not be absorbed. Select the conclusion that most accurately summarizes the data in diagram 3. Red and blue light waves have equal importance during photosynthesis. The majority of light energy is attained from red light, while the blue light waves provide additional light energy to photosynthesis. The majority of light energy is attained from blue light, while the red light waves provide additional light energy to photosynthesis. Medium length light waves are important to photosynthesis Absorptionarrow_forward
- Which of the following correctly describes the flow of electrons during photosynthesis? Select one: a. water, PS II, PS I, sugars b. glucose, water, O2, PSII c. water, sugars, PS I, PSII d. CO2, water, glucose, PSI e. water, PS I, PS II, sugarsarrow_forwardWhich of the following options best explains how less chlorophyll would affect the proces of photosynthesis in plants? 6. A. It would increase the rate of photosynthesis because of the increased production of food. B. It would limit the amount water plants are able to take in, resulting in a slower rate of photosynthesis. C. It would increase the production of oxygen because the plant would need to work hard to feed themselves. С. D. It would limit the amount of light absorbed by the plant and decrease the amount of food the plant is able to produce for itself.arrow_forwardThe light dependent reactions of photosynthesis are characterized by A. oxidation of carbon dioxide, release of oxygen, synthesis of glucose. B. release of oxygen, fixation of carbon dioxide, hydrolysis of ATP. C. oxidation of water, reduction of NADP+ , hydrolysis of ATP. D. reduction of oxygen, oxidation of NADPH, formation of ATP. E. oxidation of water, reduction of NADP+ , formation of ATP.arrow_forward
- Identify which of the following statements is a lie? Select one: a. ATP is produced in dark reactions. b. Carbon fixation does not need light. c. Plant utilize carbon dioxide in order to produce oxygen.arrow_forwardWhich of the following are the products of the light reactions of photosynthesis. A. Glucose B. Water C. ATP D.NADP E. Light energy F. NADPH G. Carbon dioxide H. Oxygenarrow_forwardIdentify which of the following statements is a lie? Select one: a. Even if plants have red leaves, they still perform photosynthesis. b. Photosynthesis is vital in plants to produce food and energy they need for growth and cellular respiration. Therefore, all plants need the same amount of sunlight to make enough food to grow. c. Aside from chlorophyll α and chlorophyll b in plants, plants also have carotenoids, which help plants absorb light energy for use in photosynthesis.arrow_forward
- The energy to hydrolyze (split) water comes from: A. an oxidized chlorophyll B. a reduced chlorophyll C. the proton gradient D. ATParrow_forwardWhich of the following occurs during the carbon-fixation reactions of photosynthesis? A. Water is converted into hydrogen and water. B. CO2 is converted into sugars. C. Chlorophyll acts as an enzyme. D. Nothing occurs; the plant rests in the dark. E. Glucose and oxygen are reduced to CO2 and water.arrow_forwardThe first step of the light reactions is the transfer (powered by solar energy) of an electron to the primary electron acceptor within photosystem proteins of the: a. Thylakoid membrane b. Intermembrane space of a chloroplast c. Stroma of a chloroplast d. Cell membrane of a mesophyll cellarrow_forward
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