1.There are three basic types of amino acids: 1) those with electrically charged side chains; 2) those with polar side chains; and 3) those with nonpolar side chains. A) True B) False2.All amino acids share a common “backbone”. Which chemical component (or components) is part of the backbone of an amino acid? A) An amino group (NH2) B) A carboxyl group (COOH) C) A hydrogen atom D) A central carbon atom that is commonly called an α-carbon atom E) All of the above3.Suppose that we link 100
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muscles because it can release energy to allow muscles to contract when the heart/lungs can’t deliver (O2) and glucose fast enough for aerobic respiration. Disadvantages: Lactic acid is not removed from the body. It builds up in the body and the blood. (2) – Anaerobic respiration releases less energy than aerobic respiration. Lactic acid: poisonous causes cramp causes oxygen debt EPOC = excess post oxygen consumption means if someone exercises hard you will see their breathing and heart rate
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Animal Diversity The number of animal varieties familiar to us is vast as the animal world is diverse. Each distinct variety or type of animals is recognized by scientist as a species. Animals of most species are free-living forms but of others are parasitic in bodies of other animals or even plants. According to their habitats animals are divided into the following types Aquatic animals :- They live in water . Animals living in sea water are called marine & those live in river‚ponds‚streams
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the same time form communities. The community forms the living‚ or biotic part of the ecosystem. Energy‚ Minerals‚ Nutrients and water from the non-living or abiotic components. 1. Inorganic substances (C‚N‚CO2‚H20 etc) incolved in material cycles. 2. Organic compounds (Proteins‚ Carbohydrates‚ lipids‚ humic substances etc.) that link biotic and abiotic. 3. Climate regime (temperature and other physical factors) 4. Producers‚ Autotrophic organisms‚ largely green plantswhich are able to manufacture
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people. Read the passages on thalidomide from the Internet and answer the questions that follow. 1 Thalidomide is a drug which was sold during the 1950s[->0] and 1960s[->1] as a sleeping aid and given to pregnant women to combat morning sickness[->2] and other symptoms. It was made in West Germany[->3] in 1953[->4]. It was available in around 50 countries‚ although not in the United States[->5]‚ under at least 40 different names. 5 It was later (1960–61) found to cause severe physical abnormalities
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pattern of bands with DNA from different individuals • used for criminal investigations / example of use in criminal investigation • used to check paternity / who is the father / mother / parent • used to check whether two organisms are clones 2. Discuss whether genetic screening should be carried out for sickle cell‚anemia and other diseases. 4 marks. 3. Discuss the advantages and disadvantages of genetic screening. 8 marks. Genetic testing can cause either a feeling of relief or
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Lab 1‚ Exercise 1 • Based on the information in Table 2‚ what patterns do you observe? The number of fish that I observed in a body of water increases until the dissolved oxygen was at 12 ppm. After that point‚ the number of fish declines slightly. • Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. When the dissolved oxygen levels increase‚ the number of fish that
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AP-2 Lab 01 – Lab Report Name: Shamika C. Dent Section: AP 2 – 131 – Fall 2010 Laboratory Report: Exercise 1: The Endocrine System Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. 1. Identify the major endocrine glands and other organs containing endocrine cells on models and diagrams (glands listed below). 2. Identify the major endocrine glands in the cat (glands
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Representation Electron Micrograph 8.2.2 State that photosynthesis consists of the light-dependent and light-independent reactions Photosynthesis is a two-step process: 1. The light dependent reactions convert the light energy into chemical energy 2. The light independent reaction uses the chemical energy to make organic molecules Overview of Photosynthesis 8.2.3 Explain the light dependent reactions The light dependent reactions occur on the thylakoid membrane and may occur by either cyclic
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birds are true endotherms that can maintain a constant internal body temperature b. ectotherm Ectotherms are animals that are not able to regulate their body temperature or in simple words‚ they cannot maintain a constant internal body temperature. 2. From the graph‚ a. Which animals could be described as true endotherms? Explain From the graph we can see that cat‚ human and platypus are true endotherms. It is because cat‚ human‚ platypus are maintaining a constant internal body temperature. Looking
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