w w w e tr .X m eP e ap .c rs om International General Certificate of Secondary Education CAMBRIDGE INTERNATIONAL EXAMINATIONS BIOLOGY PAPER 1 Multiple Choice 0610/1 OCTOBER/NOVEMBER SESSION 2002 45 minutes Additional materials: Multiple Choice answer sheet Soft clean eraser Soft pencil (type B or HB is recommended) TIME 45 minutes INSTRUCTIONS TO CANDIDATES Do not open this booklet until you are told to do so. Write your name‚ Centre number and candidate number on the answer
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AP: CHAPTER 43: IMMUNE SYSTEM 1. List the two lines of nonspecific defense mechanisms with examples of each. • External defense‚ which includes the skin and mucous membranes in the body. • Internal defense which includes phagocytic cells and antimicrobial proteins. 2. What is meant by specific defense? Defense mechanisms are said to be specific because depending on which one they focus on one specific part of the body or a specific type of pathogen. 3. Give examples of “barrier defense
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AP Biology Summer Summaries There are many differences between proximate and evolutionary causes and explanations on why we are such easy targets for diseases. The proximate explanations are described by its anatomy‚ physiology‚ and biochemistry. Evolutionary explanations go into detail on what would happen if we didn’t have the genes that cause us to get sick. Proximate causes look for what genes it is made up of and how it works. Evolutionary causes are why natural selection hasn’t eliminated
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Principles of Biology I Exam 4 Review Questions 1. What is the difference between a genotype and a phenotype? 2. Write the genotype of a homozygous recessive‚ homozygous dominant‚ and heterozygous pea plant using the trait flower color (p). 3. Different versions of a gene are called ____________. 4. Why are there always two alleles present for each gene at a specific locus? 5. True or False. A dominant allele is always written with a capital letter‚ whereas the recessive allele
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Kyle Eagle Human Biology BIO 108 G Final Exam Essays FINAL EXAM ESSAY 1). A cell is in the process of transcription. The single strand of DNA that is being copied has the sequence ATC GCA GGA TGC. Indicate the mRNA strand that will be synthesized from this strand‚ listing the correct sequence of bases. Describe why this step is important in the process of producing proteins. Explain how gene expression is regulated. The mRNA coding sequence can be described as units of three nucleotides
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Toxins play a central role in diseases such as; a) Influenza b) Coronary Artery Disease c) Tetanus d) Diabetes Antibiotics are used to treat which of the following sources of infection? a) Bacteria b) Fungi c) Viruses d) All of the above A systemic infection is: a) An infection that is in the bloodstream b) An infection that affects only one organ c) An infection that affects only one body part d) An infection that
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BIOL1102 2008 PRACTICE QUESTIONS FOR THE MID-TERM EXAM Practice Questions from week 2 lectures 1. The presence of cholesterol in the plasma membrane of some animals: a) Enables the membrane to stay fluid more easily when cell temperature drops b) Enables the animal to remove hydrogen atoms from saturated phospholipids c) Enables the animal to add hydrogen atoms to unsaturated phospholipids d) Makes the membrane less flexible‚ allowing it to sustain greater
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1. If an endangered species such as the Santa River Woolly Star were to become extinct‚ what effects might this have on other species? The community of organisms will be greatly affected if the Santa River Woolly Star were to become extinct. The Woolly Star is an interwoven strand in a crossing of organisms that are all dependent upon one another for survival. The Woolly Star also stabilizes the sand after flooding which has a [positive effect on other organisms. 2. What do the J- and S- shaped
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The victory of the United States against Great Britain in the Revolutionary war was‚ and continues to be one of the biggest upsets militarily. The Superior British army seemed to have every advantage‚ however the United States experienced key political‚ diplomatic‚ and military advantages that led to the success of the Revolution. Politically the colonies had gone through many key changes in ideology that gave the idea of revolution the traction that it would need to gain public support. The people
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Heredity and Hormones The Influences of heredity and hormones on human behavior The Influence of Heredity and Hormones on Human Behavior Human behavior has always been fascinating to many people. Scientists have long studied the factors that cause and contribute too many different types of human behaviors. The Effects Heredity Has On Human Behavior Many different traits are passed along to people through genetics. Some of these traits include the basics such as eye color‚ height‚ and
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