Study guides, Class notes & Summaries

negative feedback - ANSWER-a mechanism of response in which a stimulus initiates reactions that reduce the stimulus positive feedback - ANSWER-a physiological control mechanism in which a change in a variable triggers mechanisms that amplify the change inductive reasoning - ANSWER-reasoning based on observed patterns polymer - ANSWER-large compound formed from combinations of many monomers hydrolysis - ANSWER-a chemical process in which a compound is broken down and changed into othe...

functional groups - ANSWER-amino (NH2), carbonyl (RCOR), carboxyl (COOH), hydroxyl (OH), phosphate (PO4), sulfhydryl (SH) fat - ANSWER-glycerol and three fatty acids saturated fats - ANSWER-bad for you; animals and some plants have it; solidifies at room temp. unsaturated fats - ANSWER-better for you, plants have it; liquifies at room temp. steriods - ANSWER-lipids whose structures resemble chicken-wire fence. include cholesterol and sex hormones phospholipids - ANSWER-glycerol + ...

DNA/Biochemestry Test - CORRECT ANSWER--- 1. The digestive enzyme pepsin works in the acidic environment of the stomach to hydrolyze peptide bonds. On which macromolecules does pepsin act? A. carbohydrate B. protein C. DNA D. lipid - CORRECT ANSWER-B. Protein 2. Egg whites consist primarily of water and the protein albumin. When you fry an egg, why does the egg white turn from clear to white? A. The protein becomes dissociated. B. The protein acquires tertiary structure. C. The ...

polar - CORRECT ANSWER-Molecule with partial charges. Mixes with water. nonpolar - CORRECT ANSWER-No partial charges. Do not mix with water. electronegativity - CORRECT ANSWER-Attraction of an atom for electrons in a covalent bond. cohesion - CORRECT ANSWER-Water molecules sticking to each other. adhesion - CORRECT ANSWER-Water molecules sticking to other surfaces. solute - CORRECT ANSWER-Something dissolved in a solution. solvent - CORRECT ANSWER-Dissolving agent of a solution. isomers...

what is the correct ordering of the levels of complexity at which life is studied, from most simple to most complex? - CORRECT ANSWER-Cell, tissue, organ, organism, population, community A key point in Darwin's explanation of evolution is that? - CORRECT ANSWER-Any trait that confers even a small increase in the probability that its possessor will survive and reproduce will be a strongly favored will spread through the population After observing that fish live in clean water but not i...

yes - CORRECT ANSWER-is testosterone lipid soluble testosterone - CORRECT ANSWER-readily passes through the cell membrane and binds to a receptor in the cytoplasm. the hormone and receptor then enter the nucleus and act as a transcription factot voltage-gated calcium channels in the membrane open - CORRECT ANSWER-what is a direct result of depolarizing presynaptic membrane of an axon oxygen gas - CORRECT ANSWER-in photosynthesis, atom goes from water to pump - CORRECT ANSWER-whenever t...

emergent properties - CORRECT ANSWER-new properties that emerge with each step upward in the hierarchy of life, owing to the arrangement and interactions of parts as complexity increases negative feedback - CORRECT ANSWER-a mechanism of response in which a stimulus initiates reactions that reduce the stimulus positive feedback - CORRECT ANSWER-a physiological control mechanism in which a change in a variable triggers mechanisms that amplify the change inductive reasoning - CORRECT ANS...

organic compounds - CORRECT ANSWER-contain carbon; examples include lipids, proteins, and carbs functional groups - CORRECT ANSWER-amino (NH2), carbonyl (RCOR), carboxyl (COOH), hydroxyl (OH), phosphate (PO4), sulfhydryl (SH) fat - CORRECT ANSWER-glycerol and three fatty acids saturated fats - CORRECT ANSWER-bad for you; animals and some plants have it; solidifies at room temp. unsaturated fats - CORRECT ANSWER-better for you, plants have it; liquifies at room temp. steriods - CORRE...

Water characteristics - CORRECT ANSWER-polar, cohesion (hold together), adhesion (hold to another substance), surface tension, specific heat, heat of vaporization Surface Tension - CORRECT ANSWER-A measure of how difficult it is to stretch or break the surface of a liquid Specific Heat - CORRECT ANSWER-amount of heat absorbed or lost to change temperature by 1C Heat of Vaporization - CORRECT ANSWER-the quantity of heat required to convert 1 from liquid to gas Water polarity - CORRECT...

Ap biology (Questions and Answers, 100% Correctly) Latest Which of the following is responsible for the cohesive property of water? Hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule Water and ammonia interact to form hydrogen bonds, as represented in the figure. Which statement best helps explain the formation of the hydrogen bond represented in the figure? The nitrogen has a partial negative charge, and the hydrogen attached to ...