General Paper 1 Flashcards
When tesing for the opium pj of an amylase (the enzyme that disgests starch) what are the controlled variables
The volume / concerntaration of starch solution , the collude / concerntartion of amylase solution and temperature
What is the importance of mitosis
To ensure Growth , repair of damaged tissues and asexual reproduction
What’s cancer
The result of changes in the cell tag leads to uncontrollable cell division
What is diffientation
When stem cells specialse to become a specific function
List the 6 stages of the cell chld in order
Interphase , prophase , metaphase , anaphase , telophase and cytoknesia
Describe the cells produced in mitosis
2 genetically identical diploid body cell s
Describe the cells produced miosis and his many are there
4 genetically different hapoid cells
Describe structure of dna
Double helix , held together by weak hydrogen bonds
What is a genome
The entire dna of an organism
What is a gene
A section of dna that codes for specific protein
How does the development of of stone tools edvidece human evolution
Told found closer to the surface are more modern and more sophisticated
What does the WHO define health
A state of complete physical, mental and social well-being and nit merely the absence of disease
What’s a pathogen
A disease causing organism.
