should be able to explain the importance of sugars, amino acids, fatty acids and glycerol in the synthesis and breakdown of carbohydrates, proteins and lipids. They have cytoplasm and

a cell membrane surrounded by a cell wall. Know that the natural resting heart rate is controlled by a group of cells located in the right atrium that act as a pacemaker. You should understand the use of isotonic drinks and high energy drinks in sport. 1.3.3 Active transport You should understand that active transport moves substances from a more dilute solution to a more concentrated solution (against a concentration gradient). An electromagnet is a solenoid with an iron core. The direction of the force on the conductor can be identified using Fleming's left-hand rule. You don't need to know the detailed structure of phloem tissue or the mechanism of transport. HIV is spread by sexual contact or exchange of body fluids such as blood which occurs when drug users share needles. In a longitudinal wave the oscillations parasitsm are parallel to the direction of energy transfer. You should be able to calculate and compare surface area to volume ratios. They frequently produce toxins that damage tissues and make us feel ill. In therapeutic cloning an embryo is produced with the same genes as the patient. Be able to recognise, draw and interpret diagrams that model osmosis. Speed and velocity - the relationship between distance and time, distance-time graphs gcse physics revision notes Topic Velocity (revision notes summary for AQA 9-1 gcse Combined Science Trilogy: Physics Paper 6, Topic 22 "Forces The velocity of an object is its speed in a given. So, the velocity (speed and/or direction) of an object will essay only change if a resultant force is acting on the object. Here you will explore how plants harness the Suns energy in photosynthesis in order to make food. ( HT only ) The distance travelled by an object (or displacement of an object) can be calculated from the area under a velocitytime graph. Trilogy Biology Paper 1 1F Paper 1 (Foundation Specimen question paper gcse Comb. Index for all links pAST papers, please read carefully THE following points before using my AQA 9-1 gcse science pages. Iodine reagent is to be used to test for starch every 30 seconds. Pathogens are microorganisms that cause infectious disease. Publication date, you May Also Like, top categories. You should understand the consequences of faulty valves.

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Be able to evaluate the practical risks and benefits. Topic, the force of gravity close to the Earth is due to the gravitational field around the Earth. Milli, topic 4 Bioenergetics revision notes summary for AQA 91 gcse Combined Science Trilogy. Magnification size of image size of real object With light microscopes. You should be able to understand the principles thanksgiving of sampling as applied to scientific data in terms of risk factors.

Grade descriptors for single and combined science, gCSEs (9-1) Key Stage 3, science transition tests NEA and fieldwork: Centre declaration form 2018 (72.4 KB).This book contains complete step-by-step answers to every question in CGP s Grade 9-1.

initial velocity, topic, aQA gcse critically discuss bureaucracy essay 91 combined science trilogy physics course. Eventually the resultant force will be zero and the object will move at its terminal velocity. Acceleration, a Final velocity2 initial velocity2 2 acceleration distance. You should be able to, to include both magnitude and direction scale drawings only. Most types of animal cell differentiate at an early stage and then lose the ability to differentiate Whereas many types of plant cells retain the ability to differentiate throughout life. In metres per second squared 4, u The energy transferred supplies all the energy needed for living processes. This section will explore how we can avoid diseases by reducing contact with them. This is called the motor effect.

The spread of diseases can be reduced or prevented by eg simple hygiene measures, destroying vectors, isolation of infected individuals and vaccination.Trilogy Biology Paper 2) summary of Topic.Also, make sure you know whether you are entered for a higher tier (.