DIGESTION OF CARBOHYDRATES Digestion of carbohydrate begins in the mouth‚ with the secretion of the enzyme salivary amylase from the serous cells of the salivary gland. This enzyme breaks starch and glycogen into disaccharides. The mucous cells of the salivary gland secrete a mucus‚ which causes the food to stick together‚ and acts as a lubricant to aid in swallowing. The salivary glands are grouped into three categories: the parotid gland‚ submandibular glands‚ and sublingual‚ all located
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tongue c. stomach d. pancreas 2. What part of the digestive system where mechanical digestion happens? a. mouth b. rectum c. stomach d. esophagus 3. The throat is divided into two separate tubes: the trachea and the esophagus. Which of the organs prevents food from entering the trachea? a. The uvula b. The tongue c. The trachea d. The epiglottis 4. What is the main functions of the digestive system? a. ingestion and digestion
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Digestion is the complex process of turning the food you eat into the energy you need to survive. The digestion process also involves creating waste to be eliminated. The digestive tract (or gut) is a long twisting tube that starts at the mouth and ends at the anus. It is made up of a series of by muscles that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food. Along the way are three other organs that are needed for digestion: the liver
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roles that contribute to this sandwich being turned into chemical energy. Be sure to include mechanical and chemical mechanisms‚ along with how they are metabolized in the body! Digestion is the chemical breakdown of food molecules into smaller molecules that can be used by various cells within the body. The breakdown is initiated when food is ingested in the mouth and specific enzymes are exposed to components within the food molecules. Digestion begins in the mouth with mastication‚ or chewing‚ performed
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Explain the mechanical and chemical digestion. (a) Ingestion (b) Digestion (c) Absorption (d) Assimilation (e) Egestion TASK 3: The process of digestion involves mechanical and chemical digestion along with the process of: 1. Ingestion 2. Digestion 3. Absorption 4. Assimilation 5. Egestion Using either a starch molecule or a fat molecule explain the journey from the mouth to the anus and indicate clearly points at which mechanical and chemical digestion are taking
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Chapter 10 Digestion and Nutrition Multiple Choice Questions 1. Plankton is a. Any organic debris in the ocean B. Plant and animal microorganisms drifting in the ocean c. A group of filter-feeding microorganisms d. Oceanic bacteria e. Seaweed 2. Examples of a suspension feeder and a deposit feeder would be‚ respectively‚ a. Clams and fish B. Polychaete annelid and earthworms c. Earthworms and rotifers d. Basking sharks and rotifers e. Earthworms and clams 3. The evolution
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body. You might find yourself asking‚ what does blood have to do with digestion‚ respiration and circulation? Hopefully‚ after the presentation all of your questions will be answered. When a person thinks of digestion they usually think about what happens in the stomach. A lot has happened to digest the food way before it gets to the stomach. It starts in the mouth or oral cavity. It is a process called mechanical digestion. First‚ Mastication begins. Mastication is the chewing of the food
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Week 7 Digestion Lecture Study Guide Based on information found in the lecture folder or other sources‚ answer the following questions. 1. What is digestion? Digestion is the mechanical and chemical breakdown of food into usable molecules 2. List some other names of the digestive tract. Alimentary Canal (GI Tract) 3. Explain where and how the mechanical breakdown of food occurs. Teeth begin digestion mechanically‚ Chewing (“mastication”) breaks apart food‚ 2 sets
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Digestion and Nutrients Briana Smallwood The human body needs nutrients for it to survive. Nutrients are the fuel for the body to do work. It helps the body grow‚ provide protection from sickness and disease‚ function properly‚ and even live. There are many types and forms of nutrients that each do specific or multiple jobs. They are classified in six main groups. Carbohydrates‚ proteins‚ fats‚ vitamins‚ minerals and water are all the different groups. Proteins are nutrients that help build and
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Define the following terms: Digestion: Digestion is the breakdown of large insoluble food substances in small and soluble one by means of mechanical and chemical actions. Peristalsis: It is a series of alternate contraction and relaxation of the circular and longitudinal muscles‚ producing a wave-like motion to move food down the oesophagus‚ from the mouth to the stomach. Emulsification: It is the hydrolysis of a few large fat globules into many small and soluble fat molecules. Transpiration:
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