Unit Biology B1a (Human Biology) Biology Unit Biology B1a (Human Biology) Thursday 1 March 2012 For this paper you must have: a black ball-point pen an objective test answer sheet. You may use a calculator. F&H BLY1AP Morning Session Time allowed 30 minutes Instructions Fill in the boxes at the top of this page. Check that your name‚ candidate number and centre number are printed on the separate answer sheet. Check that the separate answer sheet has the title ‘Biology Unit
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integration through hormones. In this chapter‚ you will learn about the neural system of human‚ mechanisms of neural coordination like transmission of nerve impulse‚ impulse conduction across a synapse and the physiology of reflex action. 316 BIOLOGY 21.1 NEURAL SYSTEM The neural system of all animals is composed of highly specialised cells called neurons which can detect‚ receive and transmit different kinds of stimuli. The neural organisation is very simple in lower invertebrates. For
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Chemistry plays an important part in studying Biology. It answers some questions that Biology could not explain alone. Questions like: How does an organism convert foods for energy? How do plants use sunlight and water into all the things that cells needed to grow and reproduce? How does the basic unit of life passed through generation to the next? Here are some contributions of Chemistry in Biology: • Within atomic theory‚ chemistry contributes towards biology in the understanding of atoms and elements
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Biology 1500 Name: Chapter 10 Assignment 1. What is Genetics? The study of the way in which an individual’s traits are transmitted from one generation to the next. 2. What is heredity? Heredity is the tendency for traits to be passed from parent to offspring. 3. Why did Gregor Mendel choose garden peas to student for his experiments? Mendel chose to work with the garden pea because several of its characteristics made it easy to work with: many varieties were available‚ he knew
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Marine Biology is the scientific study of organisms that are dependent on water. Marine Biology is an interesting topic to many people because of the exotic animals you get to work with. A career in Marine Biology can be dangerous because of the wild animals‚ but at the same time it can be fun. It takes time‚ training‚ and intelligence to succeed in the career. In order to make it in this Biology field you must complete a college work in oceanography‚ marine biology‚ or conservation. You will
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Biology 1010 8/27/13 Life: * Order: Pine Cone‚ Bacteria – where things are * Regulation: Regulate their internal environment * Maintain homeostasis * Ex. Breath‚ too much CO2‚ changes pH Sends message to brain * Growth and development: Definite pattern to growth and development * Directed by DNA (genetic material where the genes are found) * Energy processing: All organisms must have energy * Humans: Food (Heterotrophs = other-feeding (fungi and
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Ranking Salt Solutions by pH 6-2: Ranking Salt Solutions by pH In this assignment you will be asked to rank aqueous solutions of acids‚ bases‚ and salts in order of increasing pH. This is most easily done by first identifying the strong acids that have the lowest pH‚ the strong bases that have the highest pH‚ and the neutral solutions that have a pH near 7. The weak acids will have a pH between 1 and 6 and the weak bases between 8 and 14. The exact order of weak acids and
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Ethanol to distilled water} . After that poor in the new solution‚ consisting of the solution {elements A‚ B‚ C‚ D‚ E‚ F or G} and Ethanol‚ into the test tube containing water‚ if the mixture turns cloudy then the solution contains lipids {fat}. Step # 6: Repeat step #1 through step #5 for the rest of the solutions. Results: The results we interpreted from the solutions A‚B‚C‚D‚E‚F and G are shown in the table below: TUBE | CARBOHYDRATES | PROTEINS | SUGAR | LIPIDS | A | NO | NO | YES
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A2 BIOLOGY ESSAYS – The Synoptic Essay The essay titles will be very general and students are expected to draw on relevant information from the complete specification to illustrate their understanding of general principles. They may wish to include detailed knowledge of topics from any of the AS and A2 units. They may also gain credit for including material which stems from wider reading and reflects greater depth of knowledge. The choice of material to include lies entirely with the student
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Biology Revision summer 2012 1-Characteristics of living organisms Nutrition- taking in of nutrients which are organic substances and mineral ions ‚ containing raw materials or energy for growth and tissue repair ‚ absorbing and assimilating them . Excretion- the removal from organisms of toxic material‚ the waste products of metabolism and substances in excess of requirement . Respiration- the chemical reactions that break down the Sensitivity- The ability to detect or sense changes in the
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