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Title: GCSE OCR Biology Module 3
Description: These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.
Description: These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.
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How are proteins broken down?
Broken down by the protease enzyme into
amino acids, which are made into new
proteins
...
2: A short stem is cut off the parent with a sharp knife
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4: The end of the stem is dipped into auxin powder
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5: The cutting is put into a pot containing sandy compost
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7: The cutting is left for several weeks to enable roots to develop to support the developing plant
...
How is fat broken down?
Broken down by the lipase enzyme into
glycerol and fatty acids
...
What are chromosomes?
DNA
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2: More flexible shape (allows easier passage through blood vessels)
...
What are the differences between
reproductive and therapeutic cloning?
Both types require an egg and a cell however in therapeutic cloning,
the embryo is split into different parts and used for different roles
e
...
heart tissue, liver tissue
...
What are things that affect the rate of
enzyme reactions?
Temperature, pH, inhibitors (block enzyme
active site)
...
What does blood plasma do?
It transports hormones, antibodies and
waste products
...
What does lymphocyte T do?
It controls the coordination of immune
response
...
What happens at the mitochondria?
Cell respiration
...
What instrument can be use to measure
respiration rate?
A respiromenter
...
What is a cell nucleus?
A cell carries genetic information e
...
DNA
...
What is a disadvantage of tissue culture?
It reduces genetic diversity meaning a
smaller gene pool
...
What is a section of DNA called?
Gene
...
What is gestation?
It is the length of time from fertilisation to
birth
...
What is one use of proteins?
Carrier molecules e
...
haemoglobin
...
What is reproductive cloning?
It is a technology used to generate a new
animal that has the same DNA as the
original
...
Meiosis is a special type of cell division
necessary for sexual reproduction in
...
Totipotent means the stem cell can specialise into anything
...
What is the equation for aerobic
respiration?
C6H12O6+6O2---->6CO2+6H20
What is the equation for anaerobic
respiration?
C6H12O6---->2C3H6O3
What is the equation for magnification?
Magnification= image size/ actual size
...
What is the process of cloning in sheep?
What is the process of gene therapy?
1: An egg is taken from the ovary of sheep 'A'
...
3: A cell was taken from the udder of animal 'B'
...
5: Now an egg has been made that contains DNA from sheep 'B'
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7: The embryo is implanted into the uterus of sheep 'C'
...
It is made from the DNA of sheep 'B', it is a clone
...
2: Insert a copy of the normal human allele into its viral DNA
...
4: Viral DNA carrying the normal allele inserts itself into the patients cell chromosome
...
6: The desired gene is then cloned
...
2: The chromosomes pair up
...
4: The single chromosome strands are then pulled apart to the opposite pole
...
1: You start with a cell resting, containing a nucleus and chromosomes
...
3: The chromosomes are arranged along the equator of the cell, forming spindles
...
5: The cells splits, forming two identical cells
...
What is the process of protein synthesis?
1: DNA is stored in the nucleus but this is the 'master copy'; it cannot leave
...
This means mRNA copies the
DNA strand and takes it there
...
3: At the ribosomes, the DNA code is used to put the amino acids together in the right order to
form the proteins by the use of tRNA
...
4: These proteins are used for the growth and repair of cells
...
2: Select the parents showing that characteristic
...
4: Select the offspring showing the desired characteristic
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6: Repeat the process over many generations
...
1: Pick a plant you want to clone
...
3: They are put into sterile culture tubes with a nutrient agar growing medium containing
hormones
...
What is your metabolic rate?
It is the amount of energy your body
needs
...
Title: GCSE OCR Biology Module 3
Description: These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.
Description: These notes have been thoroughly checked by a teacher and were described as 'stunning', and 'very highly detailed'. This is specifically for the OCR exam specification but will broadly cover most GCSE science courses.