Last christmas
This modifies and packages proteins
What is the golgi apparatus?
The equivalent of 68,000 nm in mm
what is 0.068mm?
Polysaccharide consisting of straight chains of beta glucose
What is Cellulose?
Layer of cells at the top and bottom of the leaf which lack chloroiplasts
What is the epidermis ?
This Blue dye turns colourless when its reduced
What is DCPIP?
These cells produce antibodies
What are B-Lymphocytes ?
How many turns of the calvin cycle would be required to form 2 molecule of glucose.
what is 12?
The failure of homologous chromosomes to separate during meiosis
What is non-disjunction?
The splitting of a water molecule in the presence of light
What is photolysis?
This apparatus measures the amount of light that passes through a sample
What is a colorimeter?
This process seperates cell organelles of different densities
What is ultracentrifugation?
In a section of DNA there are 20,000 total base pairs. There are 8000 adenine bases. There are this many cytosine bases.
What is 12,000?
protein found in tendons consisting of 3 polypeptide chains
What is collagen?
The most common enzyme on the planet
What is rubisco?
A measure of the number of cells undergoing mitosis in a sample
What is the mitotic index ?
This is produced by T cells and damages the cell wlals of bacterial pathogens
What is perforin ?
a sample contains 18125 bacterial cells. After how many generation will there be 580000 bacterial cells
What is 5 generations?
Process resulting in phenotypes around the mean of the population being slected for
What is Stabilising selection?
blue, red, or purple pigments found in plants, especially flowers, fruits, and tubers
What are anthocyanins?
a measure of the position of a component in a chromatographic separation
what is rf value?
This catergory of viruses contain the enzyme reverse transcriptase
What is a retrovirus?
A length of RNA is 60 um long. The approximate length of each nucleotide is 0.1nm. There are 55,000 cytosine bases along the length of RNA. Calculate the length of RNA which consists of thymine bases.
2 scientists who provided evidence of the semi conservative nature of DNA replication
Who are Meselsohn and Stahl?
This wavelength of light is the optimum for photosystem II
What is 680nm
a colourless organic compound which greatly increases the permeability of cell membranes
What is ethanol ?