Homogenisation - Study guides, Revision notes & Summaries

A Level Politics: Global Politics Exam Questions And Answers. Verified and Updated. The state and globalisation - answerThe state and globalisation Define sovereignty. - answer- Absolute and unlimited power and authority Define nation state. - answer- Autonomous political community held together by citizenship and nationality Define non-state actors. - answer- Participants in international relations with significant power and influence, which are not states Define globalisation. - answe...

AQA A LEVEL BIOLOGY 2023(Exam Elaboration) What is the function of the cell membrane? - CORRECT ANSWER-To control what enters and leaves the cell, acts as a barrier between the cell and its environment. What structural feature of the cell membrane allows substances to enter/leave? - CORRECT ANSWER-Partially permeable What is the fluid mosaic model? - CORRECT ANSWER-States that a membrane is a fluid structure (because phospholipids are constantly moving) with a "mosaic" of various p...

AQA A level Biology Revised Questions And Answers 2023 Describe how you would use a biochemical test to show that a solution contained a nonreducing sugar, such as sucrose. [3] - CORRECT ANSWER-,first reducing sugars test; boil with dilute HCl acid then Neutralise with NaHCǑ, add benedict and heat to 95 degrees C brick red ppt forms if reducing sugar is present Describe a chemical test you could carry out to show that a piece of coconut contains lipids. [3] - CORRECT ANSWER-(Crush in)...

AQA AS level biology questions and answers already passed What are the three ways a pathogen can damage hosts cells? 1) rupturing them to release nutrients inside them 2) breaking down nutrients inside the cell for their own use. This starves and eventually kills the cell. 3) replicating inside the cells and bursting them when they're released What are the two ways pathogens cause disease? 1) production of toxins 2) cell damage What are the lifestyle factors that can affect your chances of ge...

AQA A level Biology Revision EXAM QUESTIONS WITH 100% CORRECT ANSWERS Describe how you would use a biochemical test to show that a solution contained a non-reducing sugar, such as sucrose. [3] - ANSWERS ,first reducing sugars test; boil with dilute HCl acid then Neutralise with NaHCǑ, add benedict and heat to 95 degrees C brick red ppt forms if reducing sugar is present Describe a chemical test you could carry out to show that a piece of coconut contains lipids. [3] - ANSWERS ...

Capsule (slime) - ANSWER Protects the bacteria from attack by cells of the immune system. Flagellum - ANSWER Rotates to make the cell move. Viruses - ANSWER Acellular. Invade and reproduce inside the cells of other organisms. What is magnification? - ANSWER How much bigger the image is that the specimen. What is resolution? - ANSWER The ability of the microscope to distinguish between two points that are close together. Light/optical microscopes - ANSWER Uses light. Max resolut...

AQA A-Level Biology Unit 2 (Guaranteed success 2023 ORGANELLE - CORRECT ANSWER-A specialised part of a cell that performs a particular function. MAGNIFICATION - CORRECT ANSWER-The ability of a lens to enlarge the size of an object. Calculated by dividing the image size by the real size of the object. RESOLUTION - CORRECT ANSWER-The ability of a microscope to distinguish two adjacent points as separate from each other. MICROMETER μm - CORRECT ANSWER-An SI unit of measurement which is...

What are the three ways a pathogen can damage hosts cells? 1) rupturing them to release nutrients inside them 2) breaking down nutrients inside the cell for their own use. This starves and eventually kills the cell. 3) replicating inside the cells and bursting them when they're released What are the two ways pathogens cause disease? 1) production of toxins 2) cell damage What are the lifestyle factors that can affect your chances of getting cancer? 1) smoking 2) excessive...

what is RNA? ribonucleic acid MRNA and TRNA single stranded shorter AU CG what are biological molecules? molecules made and used by living organisms eg. lipids, carbs, DNA, AT, water, inorganic ions what are the functions of carbohydrates? -energy source (respiration) -energy store (starch and glycogen) -structure (cellulose) ATP structure? 1 adenosine 3 phosphates ADP and energy= ATP condensation reaction using ATP synthase carries energy in bonds hydrolysis b...

what is simple diffusion molecules pass directly through the plasma membrane without the assistance of another molecule, from a higher concentration to a lower concentration. when is simple diffusion used to allow molecules to travel in and out of the cell membrane: examples water, o2, co2 and ethanol. What is a phospholipid? It is a lipid that has a phosphate group attached to the glycerol and only two fatty acid chains. What is a protein? chain of amino acids ...