1. B2 Revision Booklet
Name: Class:

2. B2 REVISION – CHAPTER 1 – CELLS, TISSUES & ORGANS
What do plant cells have that animal cells do not?
What is the function of:
Nucleus –
Mitochondria
Ribosomes
Chloroplasts
Cell Wall
Sketch and label a plant and an animal cell;
Use pictures and words to describe the three ways substances can move in and out of cells
Diffusion
What is a tissue?
What is an organ?
What is an organ system?
Draw and label 2 specialised cells. Explain their structure is adapted to suit their function
KEY WORDS:
Nucleus
Diffusion
Cytoplasm
Concentration gradient
Cell membrane
Mitochondria
Multicellular
Ribosome
Tissue
Chloroplast
Organ
Vacuole
Organ system
Specialised
ASSESSMENT:

3. B2 REVISION – CHAPTER 2 – ORGANISMS IN THE ENVIRONMENT
What is the equation for photosynthesis
Where in the plant does it occur?
How are leaves adapted to perform photosynthesis?
Explain how plants use glucose for the following:
Respiration
Transport
Storage
How doe the follow factors affect organisms in their environment?
Temperature:
Light:
Water:
CO2 and O2:
Explain how light, CO2 and temperature are limiting factors of photosynthesis
How do we measure the distribution of organisms?
How do we know this data is accurate?
KEY WORDS:
Photosynthesis
Median
Glucose
Mode
Limiting factors
Transect
Quadrat
Reproducible
Sample size
Valid
Range
Variables
Mean
ASSESSMENT:

4. B2 REVISION – CHAPTER 3 – ENZYMES
What are enzymes made from?
What do enzymes do?
How do they work? (explain & draw the lock & key mechanism
How can we speed up digestion?
Changing the pH:
Altering the surface area:
What are the 3 groups of enzymes in digestion? What is their substrate and what do they break them down into? 1) 2) 3)
Why is the stomach acidic?
What is bile, what does it do and how does it do it?
What effect does temperature have on enzyme activity
What effect does pH have on enzyme activity
Describe 3 industrial uses for enzymes
KEY WORDS:
Catalysts
Protease
Enzyme
Lipase
Active site
Bile
Denatured
Emulsifiers
Digested
Biological detergents
Carbohydrase
Amylase
ASSESSMENT:

5. B2 REVISION – CHAPTER 4 – ENERGY FROM RESPIRATION
A student pedalled an exercise cycle at constant speed for 5 minutes. The student’s heart rate was recorded at one-minute intervals during the exercise and also during recovery.
Describe the effect exercise has on the heart:
A student‘s breathing was monitored before and after vigorous exercise. The student breathed in and out through a special apparatus. The graphs show the changes in the volume of air inside the apparatus. Each time the student breathed in, the line on the graph dropped. Each time the student breathed out, the line went up.
Describe the effect of exercise has on breathing:
What is the formula for aerobic respiration?
What is the role of mitochondria in respiration?
Why do organisms respire?
What is anaerobic respiration?
How does it cause muscle fatigue?
What is oxygen debt?
KEY WORDS:
Aerobic respiration
Mitochondria
Glycogen
Anaerobic respiration
Oxygen debt
ASSESSMENT:

6. B2 REVISION – CHAPTER 5 – SIMPLE INHERITANCE
What is mitosis and why is it needed?
What is differentiation?
How does it differ in plants and animals?
What is meiosis?
Why is it important?
How does it help generate variation?
What are stem cells?
State 2 uses of stem cells:
State 2 problems with stem cell research:
Chromosomes are made of long strands of what?
Small sections of this are called what?
What do genes code for?
What is DNA fingerprinting?
How many chromosomes in a) gamete and b) somatic cell?
What is an allele?
What does a) dominant; and b) recessive mean?
What is Cystic Fibrosis and what causes it?
Draw the punnet's square for 2 CF carriers
KEY WORDS:
Alleles
DNA finger printing
Mitosis
Meiosis
Chromosomes
Stem cells
Dominant
Therapeutic cloning
Recessive
Polydactyly
Mendel
Cystic fibrosis
ASSESSMENT:

7. B2 REVISION – CHAPTER 6 – OLD & NEW SPECIES
How do these fossils support the theory of evolution
What are fossils?
How are they formed?
What can we learn from fossils?
Why do we describe fossil records as incomplete?
What is extinction?
Describe how…
…environmental change leads to extinction
…organisms can cause extinction
Describe how new species can evolve through geographical isolation:
Higher: include info on speciation
What caused the extinction of the dinosaurs?
KEY WORDS:
Fossils
Extinction
Geographical isolation
Endemic
Speciation
ASSESSMENT: