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Cailin

Higher Human Revision

QuestionAnswer
What is the role of DNA polymerase? DNA polymerase adds DNA nucleotides using complementary base pairing to the 3' end of the new strand forming.
What is the role of a primer? A primer is a short strand of nucleotides that binds to the 3' end of the template DNA strand allowing polymerase to add DNA nucleotides.
Why is there a lead strand and a lag strand in DNA replication? Because DNA polymerase can only add nucleotides in one direction.
What is the role of ATP in the energy investment phase? It is used to phosphorylate glucose and its intermediates.
What is the role of dehydrogenase? It is an enzyme that removes hydrogen ions and electrons and passes them to NAD forming NADH
What is CYTOKINE? Chemical produced bt phagocytes to attract more phagocytes to a site of injury/infection.
Why are B lymphocytes specific? They produce antobodies whose bindjng sites are complementary to only one pathogen's antigens.
How does herd immunity protect unvaccinated bindividuals? It makes it less likely that they will come into contact with an infected individual.
How do T lymphocytes destroy pathogens? They have receptors on their surcace that bind specifically with the pathogen's antigens. They then release proteins which diffuse into the pathogen. These proteins trigger apoptosis where the cell pathogens produce self -destructive enzymes.
Name a chemical secreted by epthelial cells> Tears, saliva, stomach acid or mucus.
Where are epithelial cells found? Skin, lungs, digestive system.
Name 3 areas found in the cerebrum. Motor sensory and association
Name the 4 association areas. Personality, Intelligence, imagination and language processing (PIMP)
Created by: nscobie
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