click below
click below
Normal Size Small Size show me how
BIO digestionsystem
| Question | Answer |
|---|---|
| Three main fluid components of body | Plasma, Intestinal Fluid, Cytoplasm |
| These macro molecules provide our body with nutrients that make energy, regulate cellular activities and build and repair tissues, the 4 main ones are ? | Carbohydrates (CHO), Lipids, Protein, Nucleic Acids |
| Carbohydrates contain | C,H &0, (1C,2H,10) |
| Carbohydrates provide | short or long term energy storage |
| Simple Sugars (Monsaccarides) | 3-7 carbons in length ex glucose, frutose |
| Simple Sugars (Disaccharides) | made from two simple sugars ex sucrose, maltose and lactose |
| Polysaccharieds. (Energy stored in plants) | starch |
| Polysaccharieds, (Energy stored in animals) | glycogen |
| Polysaccharieds (stored in plant cell walls) | cellulose |
| Lipids are | - insoluble in water |
| triglyceride | glycerol backbone + 3 fatty acids (looks like a bubble letter E) |
| Function of a lipid | energy stored molecules, form a main part of a cell membrane) |
| Protein are made from | sub units called amino acids, linked together by pep tide bonds (o-o-o-o-o) |
| Function of a protein | enzymes, antibodies, builds and repairs muscles & cell membranes) |
| Whats an enzyme | biological catalyst, increases the rate of reaction |
| Nucleic acid | - Directs growth and development of an organism |
| What are the two types of Nucleic acids | RNA and DNA |
| whats RNA | ribonucleic acid |
| DNA | Deoxyribonucleic acid |
| Macromolecules must be | chemically and physically broken down before they can be absorbed by the cell lining of the intestines |
| Process that uses water to to break the bonds holding macromolecules together. Also requires enzymes | Hydrolysis |
| Minerals and vitamins are | -Vital for life -organinic and inorganic substances |
| Minerals and vitamins alow what to occur | chemical reactions |
| Why do minerals and vitamins allow chem.reactions to occur ? | To aid in tissue development, growth and immunity. |
| Roles of Water in your body | -Transport dissolved nutrients to the cells that line the small intestines |
| water helps flush _____ out of the body | toxins |
| _____ lubricates tissues and joints | Water |
| Water forms these essential body fluids | Blood and mucus |
| Water regulates | Body temp |
| How does water eliminate waste materials | swear and urine |
| FUN FACT | water is lost 1.5 L from urine and 1 L, breathing, perspiration, and bowel movement |
| Heterotrophs must consume ______ to obtain energy yielding food | other organisms |
| -aquatic animals use this -obtain small organisms to digest | Filter feeders |
| Substrate filters | live in or on their food source then eat their way through it |
| obtain food by sucking or licking nutrient rich fluids from live plants or animals | Fluid Feeders |
| Bulk feeders | ingest large peices of food |
| 4 stages of food possessing | Ingestion, Digestion, Absorption and Elimination |
| eating food | Ingestion |
| breakdown of food | Digestion |
| Transports the products of digestion to the digestive system | Absorption |
| removal of waste from the body | Elimination |
| A tube where food is processed, it can be closed or opened | Alimentary Canal |
| starts in the mouth moves along to various tubes, physical digestion occurs by muscle contractions | Physical Digestion |
| starts in the mouth, amylase is mixed into the food and starts to chemically break stuff down. | Chemical digestion |
| Carnivores have a _________ digestive tracts because they need ___________ | shorter, less time for proper digestion |
| Herbivores and Carnivores tend to have _____ digestive tracts because the ________are more difficult to digest than animal tissues | longer, digestion of cellulose in the wall of the plant cells |
| Produce Saliva to begin chemical digestion (chemical or physical) | Salivary Glands. (Chem.) |
| teeth (phys or chem) | chew/break down food (phys) |
| The tube where food passes through the mouth to the stomach (phys or chem) | Esophagus (phys) |
| Stomach | temporarily stores food, chem digestion takes place. |
| Duodenum | food passes from the stomach , nutrients are absorbed |
| Jejunum | follows after the duodenum breaks down renaming proteins and carbs |
| Ileum | absorbs nutrients pushes the undigested stuff into the large intestine |
| absorbs water from the alimentary canal, breaks down undigested materials | Large instestine |
| Watery Secretion in the mouth that begins the digestive process | Saliva |
| Peristalsis | series of muscular contractions |
| Gastric Juices | mixture of hydrochloric acids, salts, enzymes, water and mucus |
| Chyme | Thick liquid produced in the stomach |
| What is chyme made of | digested food with gastric juices |
| an enzyme in gastric juice that helps break down protein into polypeptides | Pepsin |
| Lines the surface of the small intestines to help absorb nutrients | Villi |
| helps digest fat | Bile |
| What are the accessory organs | Pancreas, gull bladder and liver |
| Why are the Pancreas, gull bladder and liver called the accessory glands | they provide aid to the digestion system |
| Chemically digests carbs, lipids and proteins, contains bicarbonates | Pancreas |
| helps digestion of fats | liver |
| stores bile between meals | Gull Bladder |
| two factors that affect enzyme functions | temperature and P.H levels |
| Energy is added to higher temp, enzyme activity increases | Temperature |
| Enzymes function best in a optimal Ph | P.H level |
| Absorbed into the blood stream through the lining of the stomach, transported into the liver, converted into glucose, carried from liver to all parts of the bodies | Monosaccharides |
| carried from the blood stream to the small intestine to the liver | Amino acids |
| absorbed into the cells of small intestines, coated with protein to be made water soluble. | Glycerol and fatty acids |
| wave like muscular contractions and relaxations, uses circular and longitudinal muscles that move along various parts of the digestive tract | Peristalis |
| temporarily holds partially digested food in the intestine and mixes it using the circular muscles present | Rhythmical segmentation |
| Mechanically breaks down large pieces of food into smaller pieces | Physical Digestion |
| Physical Digestion occurs where | mouth and stomach |