BBECY7 Science Revision Guide

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Covers the following topics: B1 – Cell Biology B2 – Organisation B3 – Infection and Response C1 – Atoms, Elements, Compounds and Mixtures C4 – Chemical Changes P1 - Energy P5 – Forces

AQA B1 RevisionCell Biology

B1 Quiz – Diagnostic QsCell Structure

1. What are the difference between prokaryotic and eukaryotic cells? Give differences, similarities, differences in size and examples of cells

2. Draw and label plant and animal cells.3. State the function of each organelle4. Draw and label a bacteria cell5. Equation linking magnification, image size and actual size6. If the magnification factor is x50 and actual size is 100nm, what is the image size7. What are specialised cells? What is differentiation? Why is it important?8. Give the function and special features of: sperm cells, nerve cells, muscle cells9. Do the same for root hair cells, xylem cells and phloem cells 10. What is mitosis? What is it used for? Describe each stage of cell division 11. What are stem cells? Why are they so important for growth and development?12. What are the two types of stem cells?13. What are the advantage of each type of stem cell?14. What are the disadvantages of each type of stem cell?15. What diseases can be cured using stem cells?

Transport in cells

1. What is diffusion?2. Name four substances which are diffused into and out of human cells?3. What are the three factors which affect the rate of diffusion?4. How are exchange surfaces adapted to increase the rate of diffusion? 5. What is osmosis? 6. Practical: investigating the effect of difference concentration on the mass of plant

tissue. Give the details of the experiment and suggest the dependant and independent variables

7. Complete exam questions on osmosis 8. What is active transport? 9. Why can active transport not occur without respiration?10.Why can active transport not occur if the cells involved don’t have access to oxygen?

AQA B2 RevisionOrganisation

B2 Quiz – Diagnostic QsOrganisation

1. Suggest the differences between cells, tissues, organs, organ system and organisms 2. Draw and label all organs involved in the digestive system and their function3. What are catalysts and how do they work? 4. For amylase, protease and lipase: where are they produced? Where do they work?

What do they break down? What do they break it down into?5. Where is bile made? What are the two functions of bile?6. Practical: How do you test for sugars, starch, carbohydrates, proteins and fats?

7. How does pH and Temperature affect the speed at which enzymes work?

Heart, Circulatory system and Health 1. What is the function of the lungs? How are lungs adapted?2. How does the heart work? Give the name of each of the four chambers and each of

the four blood vessels. Suggest where each blood vessel brings blood from/takes it to?

3. What are the three main types of blood vessels in the body?4. Give the function, structure and adaptation of each type of blood vessel 5. 300 litres of blood flow through a blood vessel in 90s. What is the rate in litres per

second?6. What are the four components of blood?7. What is coronary heart disease? What causes it?8. In detail, give the details of how the following work and when each one would be

used: stents, statins, heart valves9. Give the advantages and disadvantages of each method 10. What is meant by the term health?11. What is the difference between benign and malignant cancers?

Plants12. Give the function of each of the following plant tissuesa. Epidermal b. Palisade c. Spongy mesophylld. Xylem and phloeme. Meristemf. Guard cells and stomata 13. How are root hair cells, xylem and phloem adapted to their functions?14. What is transpiration and how do the following affect the rate of transpiration?a. Temperature b. Humidity c. Air movement d. Light intensity 15. What is translocation?

AQA B3 RevisionInfection and Response

B3 Quiz – Diagnostic QsPathogens

1. Write down what is meant by a pathogen.2. Write down what an infectious disease is.3. Write down what a communicable disease is.4. Explain the three step method of ‘catch it, bin it, kill it’.5. Write down the four main types of pathogen.6. Explain how bacteria cause damage in our bodies.7. Explain how viruses cause damage in our bodies.8. Explain the importance of Dr. Semmelweiss in terms of asking doctors and patients to

improve their hygiene.9. Describe what aseptic technique is, and how to remove pathogens from a loop of metal

(required practical).

Response1. What is the human bodies’ first line of defence?2. Explain how each part of the first line of defence works to keep out pathogens.3. Describe the role of the immune system in protecting us from pathogens.4. Write down four main roles of white blood cells.5. Explain how vaccinations work using the action of our immune system.

Drugs and Medicine1. What are the two main types of medicine?2. Describe the jobs of these two types.3. Describe the main steps in drug development.4. What is meant by double blind testing?5. Explain what a side effect is.

AQA C1 RevisionAtoms, Elements,

Compounds and Mixtures

C1 Quiz – Diagnostic QsBasic Chemistry

1. Give the state symbols for solids, liquids and aqueous. What does aqueous mean?2. What is a chemical reaction? What is a physical reaction?3. What is the difference between atoms, elements and compounds?4. What is a mixture?5. For each of the following, describe the method, equipment needed and what it

separates:a. Filtrationb. Crystallisationc. Distillation d. Fractional distillatione. Paper chromatography

Atomic Model1. Draw a table with the three subatomic particles, their relative charges and relative

masses2. What is the mass number?3. What is the atomic number?4. Find P, E, N for Cu, N, As5. Why do atoms have a neutral charge (2 points)6. What is the approximate radius of an atom? Of a nucleus?7. What are isotopes? Why do isotopes have the same chemical properties? 1. Suggest how the elements in the periodic table are organised using atomic number2. Suggest how the elements in the periodic table are organised using the number of

electrons on their outermost shells3. What is a period and what is a group on a periodic table?4. Why do elements in the same group have similar properties? 5. If the element S reacts strongly with water, will the element Se also react with water?

Periodic Table1. How were elements organised before discovery of protons, neutrons and electrons?2. What two ways did Mendeleev change the periodic table?3. What is the definition of metals?4. Definition of non-metals?5. What is the main reason behind the chemical properties of an atom?

Transition Metals1. Why do transition metals have similar properties?2. How they different to G1 metals in terms of their:

a. Melting pointsb. Densities c. Strength and hardnessd. Reactivity

3. Transition metals can exist as stable ions with different charges. What charge is formed by Fe(II)? Fe(III)?

4. They form coloured compounds and can be used as catalysts

AQA C4 RevisionChemical Changes

C4 Revision – Produce a mindmap of the main ideas in chemical changes:1. Changes of state2. Acids and Alkalis3. Reactivity Series

AQA P1 RevisionEnergy

P1 Quiz – Diagnostic QsTypes of Energy

1. Write down the law of conservation of energy.2. List the types of energy.3. Explain what is meant by an energy transfer.4. Write down the difference between potential and kinetic energy.5. What is gravitational potential energy?

Energy equations1. Write down the equation linking force and work done.2. Write down the kinetic energy equation.3. Write down the gravitational potential energy (GPE) equation.4. Produce a formula triangle for all these types of energy.5. Explain why a roller coaster uses GPE and also kinetic energy.6. Write down the equation for the energy stored in a spring.

Specific Heat Capacity1. What is the definition of specific heat capacity?2. Write down the SHC equation.3. Produce a method for working out the SHC of a substance (required practical).4. Explain why heat loss makes this practical difficult to get true SHC values.5. Explain how a storage heater works using the idea of heat capacity.

Heat transfer1. Describe the three methods of heat transfer (conduction, convection and radiation).2. Explain how each allows energy to transfer.3. Suggest how a vacuum flask reduces heat loss.4. Give two factors that affect the heat loss of a substance.5. Describe the Leslie’s cube practical (research if required – it’s a required practical).6. Explain what this practical shows about the link between surfaces and heat emission.

Energy Resources1. Explain what is meant by an energy resource.2. How is this different from an ‘energy store’ like kinetic energy?3. List the types of energy resources that you know of.4. Circle the types that are renewable.5. Explain what is meant by a renewable energy resource.6. Write down the main advantages of fossil fuels.7. Write down the main disadvantages of fossil fuels.8. Write down the pros and cons of the following renewable energy resources: Wind,

Hydroelectric, Geothermal, Solar, Tidal.9. Explain why nuclear power is extremely useful.10.Write down the disadvantages of nuclear power.

AQA P5 RevisionForces

P5 Revision – Produce a mindmap of the main ideas in Forces, using the revision pages:1. Types of Forces2. Balanced and Unbalanced Forces3. Force diagrams4. Weight and Gravity5. Speed, Distance and Time equations6. Distance-Time Graphs