big difference. The weight of the intestines in large dogs makes up about 3% of their entire body weight‚ while the weight of the intestines in smaller dogs is about 7% of their body. This creates an issue because there is less intestinal area for digestion and the absorption
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electrons from aldehyde or ketose group of reducing sugars to form cuprous oxide‚ a red brown precipitate. Materials: The materials used in order to detect starches was: test tubes‚ distilled water‚ Benedict’s solution‚ starch were used. Negative Control: H20 Positive Control: Starch Obtain nine test tubes and number them 1-9 Add to each tube the materials to be tested. Add 2ml of Benedict’s solution to each tube. Place all the tubes in boiling water- bath for 3 minutes and observe color changes
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BIOPLASTICS Bioplastics are a form of plastics derived from renewable biomass sources‚ such as vegetable fats and oils‚ corn starch‚ pea starch or microbiota. There are a variety of materials bioplastics that can be composed of‚ including: starches‚ cellulose‚ or other biopolymers. APPLICATIONS OF BIOPLASTICS Biodegradable bioplastics are used for disposable items‚ such as packaging and catering items (crockery‚ cutlery‚ pots‚ bowls and straws). They are also often used for bags‚ trays‚ containers
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6 primary functions of digestive system: 1. Ingestion- food intake 2. Secretion 3. Digestion- mechanical & chemical breakdown of food Mechanical Mastication- first step. Enables mixing with saliva to form bolus to be swallowed. Regulated by CNS. Deglutition Mixing/Churning Peristalsis- movement of muscles within GI tract that facilitates movement of food Chemical- Hydrolysis (using H2O) of macromolecules into monomers (residues) carried out by digestive enzymes produced by salivary glands
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(because it cannot pass through the intestinal walls to the bloodstream and‚ if it could would not be in a useful chemical state. The gut modifies food physically and chemically and disposes of unusable waste. Physical and chemical modification (digestion) depends on exocrine and endocrine secretions and controlled movement of food through the digestive tract. Mouth Mouth Food enters the digestive system via the mouth or oral cavity‚ mucous membrane lined. The lips (labia) protect its outer opening
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Abstract This lab was focused on determining the optimal temperature of the enzyme amylase responsible for catabolizing starch polymers and to see how different temperatures affected the rate as well as how effectively the enzyme worked. To proceed with the experiment the group set up four different test tubes for each‚ bacteria and fungal amylase‚ and labeled them accordingly with different temperatures as well as different solutions . Then the spot plates were placed on the time and temperature
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precipitate. A non-reducing sugar will be verified by a negative test of Benedict’s solution before hydrolysis by acids‚ followed by a positive test of its hydrolysis into monosaccharide components. The iodine test is done to identify glycogen and starch. The polysaccharides combine with the iodine which will give out a black-blue coloration. There are two tests that are commonly used to test for protein which are the Millon’s and Biuret’s test. A Millon’s test detects the amino acid tyrosine and
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molecules through dialysis tubing. We used the I2K1 because it is small enough to diffuse and the starch is too large to diffuse out. By detecting the presence of particular molecules on each side of the dialysis tubing‚ we determined which molecules passed through the tubing and which did not. When the starch molecules react with iodine to form a dark blue compound. We used the I2K1 to test for starch and the Benedicts test to test for reducing sugar. Based on the information my hypothesis for this
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Unit 5 Outcome 2 – Energy Metabolism Booklet The Respiratory System The respiratory system consists of the nose‚ mouth‚ pharynx‚ larynx‚ trachea‚ bronchi and lungs. These provide a passageway to allow air in and out of the body. Every cell in the body requires oxygen to survive. The primary function of the respiratory system is the exchange of gases. The respiratory system allows oxygen and carbon dioxide exchange‚ this is necessary to sustain life. During the process of breathing air is inhaled
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SCIENCE Reviewer SKELETAL SYSTEM consists of all the bones in the body give the body support and shape - for movement and protection 2 MAIN PARTS: 1. AXIAL skeleton- bones in the HEAD and TRUNK - SUPPORT and PROTECTION SKULL : helmet-like case that protects the brain called CRANIUM * The BRAIN is the control center of the body. BACKBONE or SPINE: 26 irregularly-shaped bones called
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