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B2 Revision Booklet
Name:
Class:
B2 REVISION – CHAPTER 1 – CELLS, TISSUES & ORGANS
What do plant cells have that animal
cells do not?
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 the function of:
Nucleus –
Mitochondria
Ribosomes
What is a tissue?
Chloroplasts
Cell Wall
What is an organ?
Draw and label 2 specialised cells. Explain their structure is adapted to suit their
function
What is an organ system?
KEY WORDS:
Nucleus
Cytoplasm
Cell membrane
Mitochondria
Ribosome
Chloroplast
Vacuole
Specialised
Diffusion
Concentration
gradient
Multicellular
Tissue
Organ
Organ system
ASSESSMENT:
B2 REVISION – CHAPTER 2 – ORGANISMS IN THE ENVIRONMENT
What is the equation for
photosynthesis
Explain how plants use glucose for
the following:
Respiration
How doe the follow factors affect organisms in their
environment?
Temperature:
Where in the plant does it occur?
Light:
How are leaves adapted to
perform photosynthesis?
Transport
Water:
Storage
Explain how light, CO2 and temperature are limiting factors of
photosynthesis
CO2 and O2:
How do we measure the distribution of organisms?
How do we know this data is accurate?
KEY WORDS:
Photosynthesis
Glucose
Limiting factors
Quadrat
Sample size
Range
Mean
Median
Mode
Transect
Reproducible
Valid
Variables
ASSESSMENT:
B2 REVISION – CHAPTER 3 – ENZYMES
What are enzymes made from?
How can we speed up digestion?
Changing the pH:
What do enzymes do?
What are the 3 groups of enzymes in digestion? What is
their substrate and what do they break them down into?
1)
Altering the surface area:
2)
How do they work? (explain &
draw the lock & key mechanism
3)
Why is the stomach acidic?
What effect does temperature
have on enzyme activity
What effect does pH have on
enzyme activity
Describe 3 industrial uses for
enzymes
What is bile, what does it do and how does it do it?
KEY WORDS:
Catalysts
Enzyme
Active site
Denatured
Digested
Carbohydrase
Amylase
Protease
Lipase
Bile
Emulsifiers
Biological
detergents
ASSESSMENT:
B2 REVISION – CHAPTER 4 – ENERGY FROM RESPIRATION
What is the formula for aerobic 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.
What is the role of
mitochondria in respiration?
Why do organisms respire?
Describe the effect exercise has on the heart:
What is anaerobic respiration?
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:
How does it cause muscle fatigue?
What is oxygen debt?
KEY WORDS:
Aerobic respiration
Mitochondria
Glycogen
Anaerobic respiration
Oxygen debt
ASSESSMENT:
B2 REVISION – CHAPTER 5 – SIMPLE INHERITANCE
What is mitosis and why is it needed?
What are stem cells?
State 2 uses of stem cells:
How many chromosomes in a) gamete and b) somatic cell?
What is an allele?
What is differentiation?
What does a) dominant; and b) recessive mean?
How does it differ in plants and
animals?
State 2 problems with stem cell
research:
What is meiosis?
Chromosomes are made of long strands
of what?
Why is it important?
Small sections of this are called what?
How does it help generate variation?
What do genes code for?
What is DNA fingerprinting?
What is Cystic Fibrosis and what causes it?
Draw the punnet's square for 2 CF carriers
KEY WORDS:
Alleles
Mitosis
Meiosis
Stem cells
Therapeutic
cloning
Mendel
DNA finger
printing
Chromosomes
Dominant
Recessive
Polydactyly
Cystic fibrosis
ASSESSMENT:
B2 REVISION – CHAPTER 6 – OLD & NEW SPECIES
What are fossils?
How are they formed?
What is extinction?
Describe how…
…environmental change leads to extinction
…organisms can cause extinction
What can we learn from
fossils?
Why do we describe
fossil records as
incomplete?
How do these fossils support the theory of
evolution
What caused the
extinction of the
dinosaurs?
Describe how new species can evolve through geographical
isolation:
Higher: include info on speciation
KEY WORDS:
Fossils
Extinction
Geographical isolation
Endemic
Speciation
ASSESSMENT: