Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 9, Problem 8TYU
An organism characterized as a photoautotroph obtains energy from _____ and carbon from _______. (a) light; organic molecules (b) light; CO2 (c) organic molecules; organic molecules (d) organic molecules; CO2 (e) O2; CO2
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Which of the following is not true about photoautotrophs?(a) They require CO2 and light.(b) They synthesize organic molecules from inorganicmolecules.(c) They are a subdivision of heterotrophs.(d) They are a subdivision of autotrophs.(e) All the above are true.
The bacteria which oxidize various inorganic substancesand use the released energy for the synthesis of food arecalled _______________.(a) Archaebacteria(b) Heterotrophic bacteria(c) Photosynthetic autotrophic bacteria(d) Chemosynthetic autotrophic bacteria
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you have embarked on an ambitious research project: to create life in a test tube. you boil up a rich mixture of yeast extract and amino acids in a flask along with a sprinkling of the inorganic salts known to be essential for life. you seal the flask and allow it to cool. after several months, the liquid is as clear as ever, and there are no signs of life. a friend suggests that excluding the air was a mistake, since most life as we know it requires oxygen. you repeat the experiment, but this time you leave the flask open to the atmosphere. to your great delight, the liquid becomes cloudy after a few days and under the microscope you see beautiful small cells that are clearly growing and dividing. does this experiment prove that you managed to generate a novel life-form? how might you redesign your experiment to allow air into the flask, yet eliminate the possibility that contamination is the explanation for the results? (for a ready-made answer, look up the classic experiments of…
Chapter 9 Solutions
Biology (MindTap Course List)
Ch. 9.1 - Describe the physical properties of light and...Ch. 9.1 - Prob. 1CCh. 9.1 - Prob. 2CCh. 9.2 - Diagram the internal structure of a chloroplast...Ch. 9.2 - Prob. 3LOCh. 9.2 - Prob. 1CCh. 9.2 - What is the significance that the combined...Ch. 9.2 - Prob. 3CCh. 9.3 - Describe photosynthesis as a redox process.Ch. 9.3 - Distinguish between the light-dependent reactions...
Ch. 9.3 - Prob. 1CCh. 9.3 - In what ways do the carbon fixation reactions...Ch. 9.4 - Describe the flow of electrons through...Ch. 9.4 - Explain how a proton (H+) gradient is established...Ch. 9.4 - Prob. 1CCh. 9.4 - Prob. 2CCh. 9.4 - PREDICT Can cyclic electron transport alone...Ch. 9.5 - Summarize the three phases of the Calvin cycle and...Ch. 9.5 - Prob. 9LOCh. 9.5 - Prob. 10LOCh. 9.5 - Describe what happens in each of the three phases...Ch. 9.5 - A decrease in entropy occurs during the CO2 uptake...Ch. 9.5 - In what ways does photorespiration differ from...Ch. 9.5 - Prob. 4CCh. 9.6 - Prob. 11LOCh. 9.6 - Prob. 1CCh. 9.7 - State the importance of photosynthesis both in a...Ch. 9.7 - Prob. 1CCh. 9.7 - Prob. 2CCh. 9 - Where is chlorophyll located in the chloroplast?...Ch. 9 - In photolysis some of the energy captured by...Ch. 9 - Prob. 3TYUCh. 9 - In ________, electrons that have been energized by...Ch. 9 - The Calvin cycle begins when CO2 reacts with (a)...Ch. 9 - The enzyme directly responsible for almost all...Ch. 9 - Prob. 7TYUCh. 9 - An organism characterized as a photoautotroph...Ch. 9 - VISUALIZE Draw a simple sketch illustrating a...Ch. 9 - Prob. 10TYUCh. 9 - Prob. 11TYUCh. 9 - Prob. 12TYUCh. 9 - CONNECT High-energy electrons from glucose are...Ch. 9 - PREDICT What would life be like for...Ch. 9 - EVOLUTION LINK Propose an explanation for...Ch. 9 - INTERPRET DATA The figure depicts the absorption...Ch. 9 - SCIENCE, TECHNOLOGY, AND SOAETY What strategies...
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- 2)______is an ever growing body of knowledge that is used to explain our interactions with thE would around us. 3)The energy that is generated in the light reactions is only used for___. 4) During synthesis phase, both ____ and _____get replicated 5) The structures known as____ are the site of protein synthesis and are present in both eukaryotic and prokaryotic cells 6) Humans have 22 pairs of ______ 7) A nondisjunction during _____can result in a genetic defect in a child. 8) The products of the glycolysis of glucose are pyruvic acid and _____ 9) Electrons are transferred between_____ in the electron transport chain inside the mitochondria. 10)_______ enters the Calvin-Benson cycle and produces sugar as a desired product.arrow_forward(a) Define heterotrophs. (b) Which pigment is responsible for making plants green in color?arrow_forward(a) Name one similarity between algae and plants. (b) Name one difference.arrow_forward
- Label each of the following as a characteristic of a prokaryote or a eukaryote.(a) DNA is surrounded by a membrane(b) Has a cell wall as well as a cell membrane(c) Contains chloroplasts(d) Lives in specialized groups termed organs(e) Single-celled organismsarrow_forwardPhotoautotrophs use(A) light as an energy source and CO2 as a carbon source.(B) light as an energy source and methane as a carbon source.(C) N2 as an energy source and CO2 as a carbon source.(D) CO2 as both an energy source and a carbon source.arrow_forwardThe major product of photosynthesis is (a) lipids. (b) sugar. (c) amino acids. (d) nucleotides.arrow_forward
- Which of the following is a living organism? (Select all that apply.) If it is not living, which criterion, or criteria, does it not meet? (a) an oak tree (b) an influenza virus (c) the fungus that causes white-nose syndrome in bats (d) a diamond (e) your teacherarrow_forwardCells are able to function because they (a) are closed systems (b) have mechanisms that transform energy from the environment into useful forms (c) can use enzymes to convert endergonic reactions into spontaneous reactions (d) all the precedingarrow_forwardGreen algae are green, red algae are red, brown algae are brown, and purple bacteria are purple.... compare and contrast how the various types of photosynthetic organisms convert light energy into cellular energy. Be sure to briefly describe how each produces actual energy the cell can use (ie, ADP -> ATP).arrow_forward
- Which statement is not true of plastids (chloroplasts, chromoplasts and leukoplasts)? a) Chloroplasts carry out photosynthesis. b) They have two plasma membranes, with the inner membrane being highly folded. c) They are structurally similar to mitochondria. d) Leukoplasts store starch. e) Chromoplasts contain chlorophyll. Which of the following is not associated with eukaryotic cells? a) Nucleoli. b) Plastids. c) Plasmids. d) Plasmodesmata. e) Basal bodies. Which paired items are structurally identical to one another? a) Eukaryotic and prokaryotic ribosomes. b) Centrioles and basal bodies. c) Plastids and mitochondria. d) Eukaryotic and prokaryotic flagella. Which statement is not true? a) Plant cells are eukaryotic. b) Cholorplasts are typically found in the roots of plants. c) Plasmodesmata allow plant cells to share cytoplasm with one another facilitating movement of materials from one cell to another. d) Endoplasmic…arrow_forwardCellular respiration (a) is a process whereby sunlight is used to synthesize cell components with the release of energy (b) occurs in heterotrophs only (c) is carried on by both autotrophs and heterotrophs (d) causes chemical changesin DNA (e) occurs in response to environmental changesarrow_forwardWhich of the following is/are too small to have been discovered before the invention of the electron microscope? (a) chloroplasts (b) mitochondria (c) nucleus (d) ribosomes (e) central vacuolearrow_forward
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Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY