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Health 8 Final
Terms in this set (27)
water-soluble molecules composed of carbon, oxygen, and hydrogen
Two functions of carbs
1. Are the main source of energy for cells;
2. Provide the raw materials from which cells can form biomolecules.
Types of carbs
Sugars (simple carbohydrates)
a complex carbohydrate of plant origin.
or lipids are water-insoluble molecules composed of carbon, oxygen, and hydrogen.
are the body's main energy reserve.
are used in the formation of biomolecules and
are the main component of cellular membranes.
Types of fats
Saturated (less healthy)
molecules that are mainly made up of carbon, oxygen, hydrogen, and nitrogen.
Synthesis of biomolecules
organic components that the body either cannot produce or produces only in insufficient quantities.
essential for regulating many cellular processes in the body
the foods and beverages a person eats and drinks
provides the appropriate amounts of nutrients you need to stay healthy and grow both physically and mentally
extracts nutrients from foods, breaking down foods into molecular components that can be absorbed by cells.
obtains oxygen from the air and adds it to the blood; it also releases carbon dioxide, a waste product of cellular respiration
Transports nutrients to all cells in the body and removes metabolic waste from the cell.
Filters waste and extra salt from the blood. Regulates the body's water.
Substances in food that your body needs to grow, to repair itself, and to supply you with energy. They include proteins, carbs, vitamins, minerals, water and fats.
Stages in interaction with the environment
1. A stimulus is detected by structures or organs called receptors.
2. The stimulus is relayed and interpreted by coordination systems, which produce a response.
3. The organism responds by means of organs or structures called effectors.
collect information about the human body'sinternalconditions.These receptors, located in the internal environment, mostly respond to chemical stimuli.
provide information from the body's outside environment and are therefore located on the surface of the body. Sense organs are exteroceptors.
Provide information concerning body position and body motion, as well asontherelativepositionofbodyparts.These receptors are located in the inner ear's ves- tibule and the locomotive system (muscles, tendons, and articulations), respectively.
The role of coordinating systems
1. Receive the information collected by the receptors.
2. Interpret the information received and produce an appropriate response.
3. Activate the organs required to perform this response.
made up of nerves, the brain, and the spinal chord.
It processes the information sent by the receptors—both internal and external—and generates fast, short- lived responses.
The information is rapidly transmitted through nerve impulses.
formed of endocrine glands which, when stimulated, secrete hormones into the blood stream. Blood carries these chemical signals to target tissues and or- gans, where they trigger slower, long-lasting responses.
Most relevant determinants of health
Causes of diseases
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