ask me. Eva: What is the structure of skin cells Marilyn: Your skin is the largest known organ in your body. This substance is waterproof and flexible it has three layers to it. They all work together to keep all your organs and tissues inside your body it also keeps infection‚ viruses and bacteria out of your inside of your body. In your skin cells there are little thing to tell the cell what to do. There is a nucleus is the control center of the cell. There is a cell membrane it the holder‚ so
Premium Skin Organ Integumentary system
What are the main functions of parliament and how do MP’s check the executives? This essay will talk about what are the main functions of parliament and how do MP’s check the executives. Parliament’s the source of constitutional legitimacy in Britain. Parliament has four main functions: Formation of government Representation Legalisation Scrutiny The British Parliament is a bicameral (e.g. two chamber) legislature consisting of the elected House of Commons‚ the Monarch
Premium Member of Parliament United Kingdom Parliament of the United Kingdom
Biology 1003 - Cells: Size‚ Structure and Microscopy Introduction What is life? What are the key factors that biologists have defined that apply to every single organism on the planet? In the 17th century‚ due to the amazing advancement of the microscope‚ biologists created a theory to differentiate the living from the non-living called the cell theory. One concept from the theory is that all living organisms are composed of one or more cells. The importance of studying cells is akin to the
Premium Bacteria Eukaryote Cell
“The structures of body systems are determined by their functions”. Discuss this statement‚ focussing on the Circulatory System. You should include diagrams and relevant examples in your essay. In order to survive it is necessary for every cell in the body to exchange materials as not all cells are in contact with the external environment; we rely on the circulatory system to do this which is composed of the heart‚ blood vessels and blood. The heart consists of four chambers two atria and two ventricles
Premium Heart Blood
which are alike expect for the one variable that the experiment is designed to test. 16. Organism is to community as organ is to _______. 17. Which sequence lists organisms in the order of producer‚ consumer and decomposer? 3. A hypothesis must be testable and ________--there must be some observation or experiment that could show that it is not true 18. Which function below is performed by eukaryotic cells‚ but not prokaryotic cells? 4. ________ uses "if ....then" logic to proceed
Premium Bacteria Eukaryote Scientific method
“Cell Transport Lab” Hypothesis: I hypothesis that there will be a movement of molecules out of the egg‚ and will move into the water solution. Osmosis will occur within the egg‚ and in the process the molecules of the egg will diffuse. Time (hrs) | Observations | Circumference (cm) | * 0 | * Egg is of normal weight and size * No membrane is being shown‚ and is almost perfect | * 14 centimeters | * 24 | * Egg has gotten larger taking in some of the water * Shell is soft
Premium Osmosis Chemistry Diffusion
Ecosystem Structure‚ Function‚ and Change Keyich is a city in Casdonia‚ located in Eastern Europe. Over the past six years‚ the city’s population has grown rapidly from 265‚000 in 1995 to 650‚000 in 2001‚ resulting in a 145% increase. The continious fast-paced growth estimates that by 2008 the city’s population is expeted to reach 1‚600‚000. The Keywich City Council has concerns with the excelling growth pattern and possible negative consequences associated with the growth such as cultural‚ economic
Free Waste Recycling Waste management
Cell membrane: The cell membrane surrounds the cytoplasm of a cell and its job is to protect the inside of a cell by only allowing certain substances into the cell and keeping other substances out. It also helps to support the cell and maintains its shape. Nucleus: This is the biggest part of the cell and is the part of the cell which acts like the brain. It is not always in the middle of the cell but will be placed within the cytoplasm. In some cases a cell may have many nuclei and these are
Premium Cell Organelle Golgi apparatus
Vertebrate Biology Essay Conversion Programme in the Natural Sciences Dr. Colin Stolkin & Professor P.B Gahan The Vertebrate Endocrine System in specific reference to their role in Human Menstruation‚ Ovarian and Uterine cycles Rio Summers April 2009 Word Count: 2693 The vertebrate endocrine system can be best explained as an internal body system collecting multiple organs and glands that produce and regulate hormone secretion into the bloodstream in order to control the many functions of the body
Premium Menstrual cycle Hormone Endocrine system
Planning AIM Beetroot cells contain a red pigment‚ which is stored in the cell vacuole and a vacuole membrane to prevent this leaking out of the cell surrounds it. The outer of the cell is also surrounded by a membrane‚ which again helps contain the pigment inside the cell. In this experiment I aim to find out the relationship between the leakage of red pigment from a beetroot cell and the surface area. To do this successfully I will need to alter the surface area of the beetroot cells accurately and then
Premium Cell membrane Cell Surface area