Benedicts test - Study guides, Revision notes & Summaries

TAMU Biology Lab practical review Questions and Answers 100% Pass functional group - Answer- components of a biochemical molecule, identifies the type of biomolecule hydroxyl group - Answer- a functional group found in alcohols and sugars, polar, OH carbonyl group - Answer- found in carbohydrates, two types terminal aldehyde and an internal ketone one or the other on every monosaccharide carboxyl - Answer- found in fatty acids and amino acids, acidic, double bond between carbon and oxyg...

AQA A-level Biology paper 1 with latest test. large molecules often contain carbon. why? - correct can readily form bonds with other carbon atoms. this forms a 'backbone'. other atoms can then attach. describe benedicts test for reducing sugars - correct equal volumes of the sugar sample and benedicts reagent. heat the mixture in a water bath for 5 minutes. brick red precipitate will form. what is a reducing sugar? - correct answers.a sugar that can reduce (give el...

Benedicts Reagent to test for a reducing sugar Iodine Reagent to test for a starch Biuret Reagent to test for a protein Positive Test changes colors (benedicts) or turns blue-black (iodine) Negative Test stays the same color (benedicts) or turns amber (iodine

AQA GCSE Biology paper 1 latest complete test A+ Magnification equation - answers Magnification= image size/actual object size Light microscope- how many um in 1 mm - answers 1000 um light microscope- how many nm in 1 um - answers 1000 nm Light microscope- why can we see the nucleus and cell wall but not the mitochondria - answers Too small and not stained light microscope- how can we see smaller parts of cells - answers An electron microscope has muc...

AQA GCSE Biology Paper 1 Graded A+ Magnification equation ️Magnification= image size/actual object size Light microscope- how many um in 1 mm ️1000 um light microscope- how many nm in 1 um ️1000 nm Light microscope- why can we see the nucleus and cell wall but not the mitochondria ️Too small and not stained light microscope- how can we see smaller parts of cells ️An electron microscope has much more resolution and magnification What is osmosis? ️The movement of water ...

How do biological molecules provide evidence for evolution? - ANSWERThey all have similar molecules and use the same amino acids and DNA. What are monomers of carbohydrates called? - ANSWERMonosaccharides. Beta Glucose - ANSWER Alpha glucose - ANSWER Glucose formula - ANSWERC₆H₁₂O₆ Name of the bond between monosaccharides? - ANSWERGlycosidic bond. What is sucrose made from? - ANSWERGlucose and fructose. What is lactose made from? - ANSWERGlucose and galactose. Wha...

what are carbohydrates correct answers Carbon, Hydrogen, Oxygen, , supplies energy for the cell, forms plant structures, and short term energy storage, Sugars (fruits/vegetables) and starches (potato, pasta, bread) Carbohydrates produce energy classification of carbohydrates correct answers monosaccharides, disaccharides, polysaccharides examples of carbohydrates correct answers simple sugars (glucose), complex sugars (starch), sugar (fruits), starch (rice, pasta), what are differences ...

AQA A-level Biology paper 1 100% SOLUTION 2023//2024 Benedict's test - ANSWER Which food test is heated in a water bath? Sucrose - ANSWER Which disaccharide is not a reducing sugar? Test for non-reducing sugars - ANSWER Add acid. Neutralise. Add Benedicts. Heat. Hydrolysis - ANSWER Reaction performed by dilute HCl in the non reducing sugar test. Glucose + fructose - ANSWER During the non-reducing sugar test what is sucrose hydrolysed into? Alpha - ANSWER Which type of glucose makes ...

Unit 2 Biochemistry Test Exam Questions With 100% Correct Answers What are the 3 macromolecules that we have studied? - answerLipids, Carbs and Protein Purpose for carbs - answerPrimary Energy Source How does a plant use a carbohydrate? - answerStructural support - Found in the cell walls What are the 3 elements found in all the macromolecules we studied? - answerCarbon, Hydrogen & Oxygen How can you identify a carb by looking at a picture? - answerRing Structure What does disaccharide m...

pH scale above 7 - Ans .Base pH scale below 7 - Ans .Acid pH scale at 7 - Ans .Neutral how do you test pH - Ans .Phenol Red, or pH paper, or pH meters When using Biuret Reagent what do you test for? What color does it change if it has this? - Ans .test for the presence of proteins. Its initially blue and when added to a solution containing protein it turns purple or violet. When using benedicts reagent what do you test for? What color does it change if it has this? - Ans .used to test f...