is essential for the survival of an organism. The purpose of this process is to obtain oxygen from the environment (which is necessary for cellular respiration‚ and to dispose of CO2‚ a bi product of respiration. An efficient gas exchange system has 3 requirements. It must have a large surface area over which the gases can diffuse. A large surface area maximises the amount of area available for the gases to exchange. It must also be moist. Oxygen must first dissolve into a fluid before it can diffuse
Premium Oxygen Molecular diffusion Heart
COVENANT UNIVERSITY Department of biological sciences PROGRAM: MICROBIOLOGY COURSE: MICROBIAL TAXONOMY‚ NOMENCLATURE AND IDENTIFICATION CODE: MCB 122 TOPIC: CLASSIFICATION OF BACTERIA AND VIRUSES PROJECT PARTICIPANTS OBUEKWE CHUKWUEMEKA 12CQ014230 OKAFOR SANDRA-EMMANUELLA 12CQ014231 OLOWOFELA OLUWATOYIN 12CQ014232 OSITA-ORAH ANTHONY 12CQ014233 SASORE YEWANDE 12CQO14236 NWOBI CHIZITERE 12CQ014229 OYEKAN TOSIN 12CQ014235 SOREMEKUN MAYOMIKIUN 12CQ014238 SHODEKO TOBI 12CQ014237 INTRODUCTION TO THE
Premium Bacteria
Biology coursework The aim of this experiment is to investigate the affect of pH on the enzyme amylase. The amylase is used to break down the polysaccharide starch. Amylase is a digestive enzyme classified as a saccharidase (an enzyme that cleaves polysaccharides). It is mainly a constituent of pancreatic juice and saliva‚ needed for the breakdown of long-chain carbohydrates (such as starch) into smaller units. Amylase is also synthesized in the fruit of many plants during ripening‚ causing them
Free Enzyme Starch Glucose
Our assignment is about how chromosomes separate and how cell division works through microtubules and histones. DNA in the nucleus is loose and not well defined into chromosomes because it is usually tightly coiled‚ but in the interphase nucleus the chromatin exists in two forms: loosely coiled form called euchromatin and tightly coiled formed called heterochromatin. These two types become more coiled to form the chromosome at the time of cell division. DNA is a bit loosely coiled in the euchromatin
Premium Chromosome Cell nucleus DNA
9.16 Explain why human skin coloration is not sufficiently explained by polygenic inheritance. -Polygenic inheritance is the additive effects of two or more genes on a single phenotypic characteristic. 9.17 Describe the limits‚ benefits‚ and ethical challenges of genetic testing. -Genetic testing can fall into one of the five categories: carrier testing‚ diagnostic testing‚ prenatal testing‚ newborn screening‚ and predictive testing. Carrier testing is designed to determine whether a person
Free Genetics Gene
There are many differences between photosynthesis and cellular respiration. Photosynthesis requires energy as photons. Cellular respiration supplies energy in the form of ATP. In photosynthesis‚ electron transport occurs in the membranes of chloroplasts or thylakoid discs. Cellular respiration takes place in the membranes of mitochondria. In photosynthesis‚ water breaks down to supply 2 electrons and 2 Hydrogen ions and release ½ O at the beginning of the chain. In cellular respiration‚ 2 electrons
Free Photosynthesis Adenosine triphosphate Cellular respiration
LS REPORT LAW TSZ KIT 5S1 13 TEST TUBE BABY Test tube baby‚ also known as in vitro fertilization‚ is the fertilization of an egg by sperm outside of a woman’s womb. This technology is considered as the last resort when all other method in helps of aiding couples to have pregnancy. This method is important and has helped millions of families‚ yet it brings about a lot controversies questions about this technology regarding to its ethic morality. In my opinion‚ I believe that this technology’s
Free Pregnancy In vitro fertilisation Fertility
IODINE TEST FOR STARCH The Iodine test is used to test for the presence of starch. Iodine solution — iodine dissolved in an aqueous solution of potassium iodide — reacts with the starch producing a purple black color. The colour can be detected visually with concentrations of iodine as low as 0.00002M at 20°C. However the intensity of the colour decreases with increasing temperature and with the presence of water-miscible‚ organic solvents such as ethanol. Also the test cannot be done at very low
Premium Fructose Glucose Sucrose
#Of people with trait Free earlobes 20 100% Attached earlobes 0 0% Hair on knuckles 5 25% No hair on knuckles 15 75% Widow’s peak 5 25% Straight hair line 15 75% Curly hair 10 50% Straight
Premium Surveying
Evaluate the impact of care in the community for adults with Mental Health problems. Care in the community is where a patient is no longer detained nor sectioned within a hospital institution. However‚ there must be at least three practitioners agreeing that it is necessary for the patient to be released into the community. Adults who may suffer from mental health problems can ask to be cared for within the community. Patients and their families are now more educated with a sense of empowerment
Premium Mental health Mental disorder Illness