We need energy to move our muscles which also only operate when they are warm. Coldblooded humans use the energy from the environment as well as from their food. Energy is the capacity to do work in our bodies. That means doing everything that a body needs to do to stay alive and to grow: pumping ions across membranes, making new proteins, making new lipids, making hormones, making new cells, neural function, contracting muscles, replacing damaged or worn-out components, absorbing nutrients, excreting wastes and pumping blood. Supplying enough energy to support the many functions of the body at work and play is one of the chief functions of food.
Task 1: A brief introduction to digestion (i.e. Why we need to digest food, in one paragraph). Also explain the main processes involved, use one short paragraph for each. (Criteria 1): Digestion is the breaking down of food and drink into a smaller part so the body can use them to build and nourish cells and to provide energy as the body cannot absorb food without being broken down into smaller pieces. When we eat our food it is broken down into nutrients then absorbed into the bloodstream, our body then discards the indigestible parts of the food, this process is called digestion.
The food and drink goes into our stomach and from there it is digested, absorbed, then either stored or converted into energy by chemical reactions in our body, therefore food is chemical energy. https://uk.answers.yahoo.com/question Glucose + Oxygen = Carbon Dioxide + Water + Energy In other words, glucose and oxygen are turned into carbon dioxide and water releasing energy. http://purchon.com/chemistry/?page_id=223 The sum of all chemical reactions within a living organism is known as metabolism. The two body systems I am going to explain in detail are Respiratory and Circulatory and their role in producing energy: Respiration Respiration involves breathing. External respiration which is also known as breathing refers to the inhalation of oxygen from the air into the lungs and expelling carbon dioxide from the lungs to the air.
In other words, how many of its antioxidants actually make it into your bloodstream and then into your cells? Now, before you even consume the food item, its ORAC ranking can be changed by different cooking methods. Boiling and frying “oxidise” the antioxidants in the food – in other words, we’re losing the antioxidants! Why? Because they are already busy absorbing and neutralising the free radicals from cooking (in the case of frying) or leaching into the water (in the case of boiling).
A kinses behavior is their activity rate. Sowbugs when given different variables will show taxis and kinses towards then and that was the true purpose to this lab. When tested in their behavior chambers the sowbugs will choose the variables most like there natural environment. Scientific Drawing: See attached. Answers to Questions (1-9) 1) They sense with their antennas 2) Yes 3) Yes 4) 2 5) 14 legs 6) Some crawl on top of others, but does not matter in size 7) Gills 8) They molt their exoskeletons.
It is measured during a resting metabolic rate assessment or calorie point. When you measure how much oxygen is inhaled and how much carbon dioxide is exhaled, the amount of carbohydrates and fat being burned can be measured. Our bodies are only able to use fat as a major fuel source when it’s able to get O2 into the cells. A person’s resting or moderately active respiratory quotient should be 0.7 to 1.0. When we do intense workouts our ratio increases about 1.0, thus making our bodies work anaerobically (this means without O2).
Biology assignment by Haider Hamad The Digestive system Introduction The aim of this project is to find out the difference between human digestive system and animal. Human Digestive System What is the Digestive system? The human digestive system is a complex series of organs and glands that processes food. In order to use the food we eat, our body has to break the food down into smaller molecules that it can process; it also has to excrete waste.Most of the digestive organs (like the stomach and intestines) are tube-like and contain the food as it makes its way through the body. The digestive system is essentially a long, twisting tube that runs from the mouth to the anus, plus a few other organs (like the liver and pancreas) that produce or store digestive chemicals.
The Ventromedial Nucleus is the Satiety Centre. Satiety is the unconscious physiological process that stops you eating. The VMN provides the signal to stop eating when it picks up hormonal messages. For example, when food is being digested the level of the hormone CCK in the bloodstream is high. This stimulates receptors in the VMN.
Water in our bodies helps us digest the food we eat and regulates our body temperatures. How? Water is in the bile and it is secreted when we chew food and when we become to hot our bodies will sweat to help our temperature become more regulated. It is important to include water in your diet when possible. Eating is a great way to intake water during meals.
PDHPE Task 2: Factors Affecting Performance Research Task Question 1: Prepare and explain a flow chart that represents the chain of events in the production and use of anaerobic and aerobic energy. While performing exercise, our muscle cells require energy to enable them to contract during movement. The source of this energy comes from the foods we consume such as carbohydrates, fats and protein. These foods must be broken down and stored in a compound called Adenosine Triphosphate (ATP) so they can become compatible for transference of energy to muscle cells. ATP compounds in our body however are limited and we do not contain enough of what is needed to supply energy for sustained activity therefore ATP needs to be resynthesized after use so it can continue to provide energy.