Biology Unit 2 Module 2 1.1: Explain the uptake of ions by active transport in roots; * Emphasize the role of the endodermis. Most plants secure the water and minerals they need from their roots. The path taken is: soil -> roots -> stems -> leaves The minerals (e.g.‚ K+‚ Ca2+) travel dissolved in the water (often accompanied by various organic molecules supplied by root cells).Less than 1% of the water reaching the leaves is used in photosynthesis and plant growth. Most of it is
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Biology Study Term 1 Organic Compounds: Water- Provides an environment for metabolic reactions The structure gives it a slightly positive and slightly negative charge giving it the ability to dissolve substances. Carbohydrates: The main function of carbohydrates is to provide an energy source Carbohydrates can also be used for structural units such a deoxyribose. Composed of Carbon‚ Oxygen and Hydrogen. Monosaccharaides: Composed of 3 to 7 carbons. Prefixes indicate the number of
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The Endocrine Disruptor: TRICLOSAN What is Triclosan? * Triclosan (2‚4‚4’ –trichloro-2’-hydroxydiphenyl ether) is a chlorinated aromatic compound. Its functional groups include both phenols and ethers. It is used as a synthetic broad-spectrum anti-microbial agent. Triclosan was first registered as a pesticide in 19693. What is Triclosan Used For ? * Triclosan is an anti-microbial active ingredient contained in a variety of products where it acts to slow or stop the growth of bacteria
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* AP IMMUNE SYSTEM * An animal must defend itself against unwelcome intruders -- the many potentially dangerous viruses‚ bacteria‚ and other pathogens it encounters in the air‚ in food‚ and in water. * Herpes simplex-1 (Herpes labialis‚ HSV-1) * Herpes simplex 2 (HSV-2‚ Herpes genitalis) on thigh * Three cooperative lines of defense have evolved to counter these threats. * Two of these are nonspecific -- that is‚ they do not distinguish one infectious agent from another
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Evolution Unit: Objectives AP Biology Upon the completion of the textbook readings in Chapters 22-26 you should be able to: Chapter 22 1. Explain how the principle of gradualism and Charles Lyell’s theory of uniformitarianism influenced Darwin’s ideas about evolution. The basic idea of natural selection is that a population of organisms can change over the generations if individuals having certain heritable traits leave more offspring than other individuals. The result of natural selection
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Digestive System Notes 2. List the major parts of the alimentary canal; then separately list the accessory organs of the digestive system. a. Mouth—the oral cavity. b. Pharynx—extends from the back of the nasal cavity to the top of the esophagus. c. Esophagus—extends from the pharynx to the stomach. d. Stomach—just below the diaphragm on the lefi side of the body. e. Small intestine—extends from the stomach to the large intestine. f. Large intestine—extends from the small intestine to the
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Lesson 5: The Function of Respiration Human Respiratory System Larynx Voice box Contains 2 thin elastic ligaments Vibrate to produce sound As air is forced up from lungs through larynx Muscular tension & position of vocal cords Produce different sounds Alveoli Network of capillary surround each alveoli Allow for exchange of O2 and CO2 Trachea‚ Bronchi & Bronchioles Trachea & Bronchi Supported by rings of cartilage Cilia & Mucus (producing goblet cell) Line inside
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The innate immune system is referred to as the first line in host defense against invading pathogens and preserve host integrity [1]. Of them the innate immune cells have sensors such as macrophages and dendritic cells (DCs) detect molecular components of foreign microorgan¬isms known as pathogen-associated molecule patterns (PAMPs) through PRRs. Its highly developed ability to recognize microbial patterns and host derived danger signals relies on so-called PRRs‚ especially on the TLRs‚ RLRs and
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Chemical level – atoms combine to form molecules 2. Cell level – Molecule form organelles 3. Tissue level – similar and surrounding material make up tissues 4. Organ level –diff tissue combine to form organs 5. Organ system level –Organs make up an organ system 6. Organism – organs sytem make up an organism Characteristics of Life 1. Organization – Specific interrelationships among the parts of an organism and how those parts interact to perform specific functions. 2. Metabolism-
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4 Exercise Endocrine System Physiology Advance Preparation/Comments Consider covering the following topics to prepare students for the simulation: • Describe the regulation of thyroid hormone secretion. • Explain the relationship between the hypophysis (pituitary gland) and the hypothalamus. • Describe the synthesis of thyroid hormones‚ thyroxine and triiodothyronine. • Explain disorders that result in goiter formation. • Review the factors that contribute to bone density. • Explain the regulation
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