Exam 6: Lifes Mainspring: an Introduction to Energy
Exam 1: Science As a Way of Learning: a Guide to the Natural World58 Questions
Exam 2: Fundamental Building Blocks: Chemistry, Water, and Ph81 Questions
Exam 3: Lifes Components: Biological Molecules83 Questions
Exam 4: Lifes Home: the Cell78 Questions
Exam 5: Lifes Border: the Plasma Membrane93 Questions
Exam 6: Lifes Mainspring: an Introduction to Energy77 Questions
Exam 7: Vital Harvest: Deriving Energy From Food79 Questions
Exam 8: The Green Worlds Gift: Photosynthesis83 Questions
Exam 9: The Links in Lifes Chain: Genetics and Cell Division81 Questions
Exam 10: Preparing for Sexual Reproduction: Meiosis81 Questions
Exam 11: The First Geneticist: Mendel and His Discoveries73 Questions
Exam 12: Units of Heredity: Chromosomes and Inheritance73 Questions
Exam 13: Passing on Lifes Information: Dna Structure and Replication71 Questions
Exam 14: How Proteins Are Made: Genetic Transcription, Translation, and Regulation81 Questions
Exam 15: The Future Isnt What It Used to Be: Biotechnology73 Questions
Exam 16: An Introduction to Evolution: Charles Darwin, Evolutionary Thought, and the Evidence for Evolution71 Questions
Exam 17: The Means of Evolution: Microevolution70 Questions
Exam 18: The Outcomes of Evolution: Macroevolution80 Questions
Exam 19: A Slow Unfolding: the History of Life on Earth78 Questions
Exam 20: Arriving Late, Traveling Far: the Evolution of Human Beings55 Questions
Exam 21: Viruses, Bacteria, Archaea, and Protists: the Diversity of Life 180 Questions
Exam 22: Fungi : the Diversity of Life 249 Questions
Exam 23: Animals: the Diversity of Life 380 Questions
Exam 24: Plants: the Diversity of Life 451 Questions
Exam 25: The Angiosperms: Form and Function in Flowering Plants80 Questions
Exam 26: Body Support and Movement: the Integumentary, Skeletal, and Muscular Systems69 Questions
Exam 27: Communication and Control 1: the Nervous System82 Questions
Exam 28: Communication and Control 2: the Endocrine System46 Questions
Exam 29: Defending the Body: the Immune System80 Questions
Exam 30: Transport and Exchange 1: Blood and Breath84 Questions
Exam 31: Transport and Exchange 2: Digestion, Nutrition, and Elimination74 Questions
Exam 32: An Amazingly Detailed Script: Animal Development81 Questions
Exam 33: How the Baby Came to Be: Human Reproduction77 Questions
Exam 34: An Interactive Living World 1: Populations in Ecology80 Questions
Exam 35: An Interactive Living World 2: Communities in Ecology74 Questions
Exam 36: An Interactive Living World 3: Ecosystems and Biomes86 Questions
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Given enough time, sucrose can spontaneously break down into fructose and glucose in a glass of water.
(True/False)
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Methyl alcohol, also known as wood alcohol, is a common solvent and paint remover. It is poisonous if accidentally swallowed. The enzyme alcohol dehydrogenase in the liver converts methyl alcohol into formaldehyde, which then gets converted into a toxic product. Grain alcohol, ethyl alcohol, is also acted upon by alcohol dehydrogenase. One antidote for methyl alcohol poisoning is to make a person drink a lot of ethyl alcohol. This blocks the active site of the enzyme so that it can't bind to and break down the methyl alcohol. In this capacity, the ethyl alcohol is acting as a/an:
(Multiple Choice)
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When a product binds to an allosteric enzyme to slow its reaction, it does which of the following?
(Multiple Choice)
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In the following reaction, which of the following is an example of a substrate? Lactase
Lactose → Glucose + Galactose
(Multiple Choice)
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Explain why enzymes are involved in exergonic reactions, such as lactose breaking down into glucose and galactose, and whether these reactions can occur spontaneously.
(Essay)
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When we metabolize our food, we produce heat that helps to keep us warm. Which of the following best describes why?
(Multiple Choice)
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Living things are highly ordered. So why does life not violate the second law of thermodynamics?
(Multiple Choice)
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Kinetic energy is ________ and potential energy is ________.
(Multiple Choice)
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Phosphofructokinase is an enzyme involved in glycolysis, which is a metabolic pathway involved in ATP production. It can be allosterically regulated by both ATP and ADP. Why is regulating the activity of this enzyme important? Predict what will happen to the rate of reaction when ATP levels in the cell are high, and predict what will happen when the levels of ADP in the cell are high.
(Essay)
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The diversity of chemical reactions occurring in a cell depends mostly on certain molecules present in the cells, which are called:
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