(Original post by Ilikerevising)
the topic list:
this is my the rest of my revision i dont get please help ik its VERYYYYYYYYYYYYYYYYYYYYYYYYYYYYY YYYYYYYYY LONG. but do what you can and just put idk in the ones u dont know
💫could you write it like where it says explain could you develop and on some other points as well if necessary
thankyou so much idk how much i can thank you
B1.10 Exchanging materials
Describe how the effectiveness of exchange surfaces are increased.
Use ideas about surface area to volume ratio to describe why multicellular organisms need exchange surfaces
Link ideas about diffusion to explain how the adaptations of exchange surfaces increase their effectiveness.
B3.1 Tissues and organs
Define the terms tissue, organ and organ system.
Describe the function of certain organs and organ systems.
Identify tissues that make up organs.
Suggest the function of glandular, epithelial, and muscular tissue in organs.
B3.2 The human digestive system
Name all of the organs of the digestive system.
Describe the functions of the organs.
Summarise the process of digestion.
B3.4 Catalysts and enzymes
Describe how enzymes are used in digestion.
Explain how enzymes speed up reactions.
Explain how enzymes control metabolism.
Identify the independent variable in an investigation.
Plan an experiment to investigate how different catalysts affect the rate of a reaction.
B3.5 Factors affecting enzyme action
Explain why high temperatures and changes in pH prevent enzymes from catalysing reactions.
Plan and carry out an investigation in order to gather accurate results.
Plot a line graph and use it to draw conclusions about how temperature and pH affects the rate of an enzyme catalysed reaction
B3.6 How the digestive system works
Explain why enzymes are needed for digestion.
For each food molecule, name the enzyme that acts on it, where it is produced, and the products formed.
B3.7 Making digestion efficient
Describe the functions of bile.
Explain how acid in the stomach increases the efficiency of pepsin.
Explain how bile increases the efficiency of fat digestion.
B5.2 Pathogens and disease
Describe how bacteria and viruses cause disease.
Explain how pathogens are passed from one organism to another.
Suggest ways of preventing the spread of communicable diseases, referring to the transfer of pathogens.
Describe how aseptic techniques are used to create an uncontaminated culture of bacteria.
Explain the conditions required for bacteria growth in a school laboratory.
B7.1 Non- communicable diseases
Classify diseases as communicable or non-communicable.
State risk factors that are linked to an increased rate of a disease.
B4.4 Breathing and gas exchange
Label a diagram of the gas exchange system to show some of the main structures.
State that gas exchange happens in the alveoli.
Explain in detail how adaptations of alveoli result in efficient gas exchange.
Key practical’s you will have carried out this academic year:
Required practical activity 1: use a light microscope to observe, draw and label a selection of plant and animal cells. A magnification scale must be included.
Required practical activity 3: investigate the effect of a range of concentrations of salt or sugar solutions on the mass of plant tissue
Required practical activity 4: investigate the effect of pH or temperature on enzyme activity.
Skills you may be tested on:
o Calculating mean.
o Identifying variables in an experiment.
o Plotting graphs with line of best fit.
o Describing trends of graphs.
o Using the formula: real size = image size magnification