Ben Milam January 29‚ 2013 A.P. Biology Chapter 29 “Do You Understand” Questions Chapter 29.1: 1) The roles of the blood plasma and the interstitial fluid in serving the needs of the body are to exchange materials and nutrients with the cells it surrounds. These two extracellular fluids interrelate because the plasma is 20% of all extracellular fluid and the interstitial fluid is the remaining 80%. 2) A) Epithelial tissues are sheets of densely packed‚ interconnected epithelial cells
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Plant Pigments and Photosynthesis Problem: We are going to separate and identify pigments and other molecules from cell extracts through a process called chromatography. We will also test the theory that light and chloroplasts are required for light reactions to occur. Background: Pigments are chemical compounds which reflect only certain wavelengths of visible light. This is what makes them seem colorful. Many things contain pigments including flowers‚ corals‚ and even skin. More important than
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Question: Why would sensing and responding to vinegar be important to an organism? -It could train them to respond to certain smells and respond in a certain way. How would natural selection affect an organism’s ability to sense and respond to this stimulus? -The organism depends on its ability to sense and respond. The organisms could compete for water or hydration. What other types of stimuli would be important for the organism to respond to? - An organism that is used to light is
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Book Write Up The novel Your Inner Fish‚ by Neil Shubin‚ shows profound knowledge of evolution in the origins of the humans. Shubin writes enthusiastic chapters that specify major organs of general life on earth‚ ranging from aquatic life like sharks to terrestrial animals such as mice. Shubin skillfully explains complex connections to us humans to other present animals with evidence‚ in fossils‚ that show evolution throughout millions‚ even billions of years. How did we inherit all those
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Name: ______________________________________ Date: ________________________ Student Exploration: Dehydration Synthesis Vocabulary: carbohydrate‚ chemical formula‚ dehydration synthesis‚ disaccharide‚ glucose‚ hydrolysis‚ monosaccharide‚ polysaccharide‚ valence Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. If you exercise on a hot day‚ you need to worry about dehydration. In this context‚ what do you think dehydration means? When you are exercising in the heat you
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Stomata are tiny pores found on the epidermis of the leaf‚ surrounded by guard cells. [1] Their main function is gas exchange [1] for photosynthesis and respiration. The development of stomata on the leaves of a plant is determined by interaction between different genes and environmental factors. A few studies have been conducted in order to establish a relationship between stomatal densities and given environmental factors. Research has shown that stomatal densities are controlled by environmental
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AP Biology Sunday‚ October 24‚ 2010 Enzyme Lab Write-Up Purpose: To observe how an enzyme affect the speed of chemical reaction. To describe how the concentration of an enzyme affects its ability to work. Hypothesis: Depending on the concentration of the catalase which the disk is soaked in‚ it will have a direct correlation on the rate of hydrogen peroxide being broken down into oxygen gas. Prediction: Since the rate of reaction can be lowered by the addition of
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direct manipulation of genes for practical purposes. 2. Gene cloning - The production of multiple copies of a gene. 3. Restriction enzyme – A degrading enzyme that recognizes and cuts up DNA (including that of certain phages) that is foreign to a bacterium. 4. Restriction site – A specific sequence on a DNA strand that is recognized as a cut site by a restriction enzyme. 5. Recombinant DNA – A DNA molecule made in vitro with segments from different sources. 6. Sticky ends – A single-stranded end
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Biology Guide 1. How is the human body organized? A= The levels of organization in the body include cells‚ tissues‚ organs‚ and organ systems. 2. Define cell A= Basic unit of structure and function in living things. 3. Define Tissue A= Group of cells that perform a single function. 4. CHECK OUT TYPES OF TISSUE ON PG. 863 5. What’s the epithelial tissue? A= Tissue that lines the interior and exterior body surfaces. 6. Connective tissue? A= Tissue that provides support
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The Effects of Environmental Stimuli on Animal Behavior AP Biology Emily Olsen April 26‚ 2012 I. Introduction: The purpose of this lab is to test the effect certain stimuli has on the behavior of a terrestrial isopod. These bugs are more commonly known as pill bugs and potato bugs. The objective of this experiment is to determine which kinds of habitats potato bugs favor. Potato bugs have an innate behavior called taxis which will cause the animal to move away from a stimulus that is unwanted
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