AQA GCSE Revision Topics B1a Human Biology MULTIPLE CHOICE QUESTION PAPER B1a. 1. Co-ordination and control p24 Responding to change Nervous system - neurones Hormones – glands Notes understand p26 Reflex action Reflex arc pathway synapse p28 Menstrual cycle FSH‚ oestrogen‚ LH‚ ovulation p30 Artificial control of fertility Contraceptive pill IVF treatment p32 Controlling conditions Water & ions – kidneys Temperature Blood glucose – insulin
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Alternatives to Animal Testing Throughout history‚ animal testing has been used for a variety of research and tests‚ but we never stop to realize the cruelty and inhumanity of their environments. Gandhi once said‚ “The greatness of a nation and its moral progress can be judged by the way its animals are treated” (qtd. in Hajar). Animal testing is unnecessary and irrational because we have the technology to replace the inhumane testing‚ which proves to be even more accurate and precise with its
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Minerals are important for maintaining homeostasis which essentially is a big part of what keeps us alive. Minerals are inorganic compounds（lack of carbon atom)‚ which are quite different from other nutrients. The reason is that carbohydrates‚ proteins‚ lipids‚ and vitamins are all organic compounds(contains carbon) . The structure of minerals is very simple‚ usually nothing more than a molecule‚ or molecules. Most of the minerals in a diet come from eating plants and animals or from drinking water
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physical activity and inactivity. Federation Proceedings 39‚ 1506-1513. Seals‚ DR.‚ Evans‚ SL.‚ Davy‚ KP. & Stevenson‚ ET (1994) Physiological determinants of 10-km performance in highly trained female runners of different ages.Jounal of Applied Physiology. May 78 (5). Tipton‚ C. M. & Vailas‚ A. C. (1990) Bone and connective tissue adaptations to physical activity. In: Exercise‚ Fitness‚ and Health (Bouchard‚ C.‚ Shephard‚ R. J.‚ Stephens‚ T.‚ Sutton‚ J. R. & McPherson‚ B. D.‚ eds.)‚ pp. 331–344
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Self-renewal and differentiation are fundamental stem cell fate decisions‚ which are essential for normal tissue development‚ homeostasis‚ and repair actin cytoskeleton and Rho-GTPases‚ mediate downstream signal transduction Serum response factor (SRF) and yes-associated protein (YAP) are two examples of mechano-sensitive transcription factors‚ which have recently been implicated in epidermal and mesenchymal stem cell differentiation Lab notes: Passive processes: transport driven by
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miniaturization process making you and the sub only 8 microns long. This time‚ you have been swallowed by a 55 year old man eating a hamburger‚ french fries and a root beer. 1.For the first portion of the mission‚ you are to pilot your sub through the gastrointestinal tract to monitor the digestion of his meal. Describe all major structures you pass by or through‚ just like a tour guide would do. Also describe what happens to the meal during the digestion process. Once you arrive at the distal ileum‚ go through
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Chapter 9 Study Questions and Activities 1. What are the ABCs that kinesiologists in sport and exercise psychology study? Identify questions that kinesiologists in this area might study based on these ABCs. Affect-emotion‚ Behavior-actions‚ Cognitions-thoughts 2. What was significant about Coleman Griffith’s early work in sport psychology? Why did the subdiscipline not emerge again until the 1960s? Who’s Coleman Griffith? Professor at the Univ. of Illinois‚ he engaged in the 1st systematic
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NEED FOR NUTRITION PREGNANT & LACTATING WOMEN 1/20/2014 Jennell Attidore‚ Patricka Gibson‚ Helena Scotland TABLE OF CONTENTS INTRODUCTION W.H.O. gave the definition for nutrition as the intake of food‚ considered in relation to the body’s dietary needs. They also defined good nutrition and poor nutrition; good nutrition is an adequate‚ well balanced diet combined with regular physical activity and is a cornerstone of good health. Poor nutrition
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Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Activity 1: Simulating Dialysis (Simple Diffusion) • Describe two variables that affect the rate of diffusion: Two variables that affect the rate of diffusion are size and concentration gradient. The molecular size vs the MWCO size of the membrane can either increase‚ decrease‚ or prevent diffusion. The greater the concentration gradient the greater the diffusion rate due to molecules moving from areas of higher concentration
Free Diffusion Molecular diffusion Osmosis
There are many different types of diseases that infect human beings. Crohn’s disease happens to be one that affects the digestive system in a huge way. Less than 200‚000 Americans have experienced the pain of this disease‚ where the gastrointestinal tract becomes swollen. Currently Crohn’s disease is not curable‚ but best scientists are working hard to learn more about this disease‚ and find a cure. Although there are no cures yet‚ there are certain steroids that can be taken to slow down the
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