Mitosis And Meiosis Flashcards
Why do cells become smaller when only s stage and mitosis happens
Less protein synthesis and organelles
Less cytoplasm or cell membrane produced
Describe the process that takes place inside a cell during specialisatoon
Genes would be activated/deactivated
Active genes transcribed/mrna produced
Transaction of mrna to produce proteins
Proteins determine the function for cells
Tissue
Made up of cells
One type of cells
Organ
Made up of tissues
Made up of different tissues
More function than tissues
Purpose of mitosis in root tip
Increases cell number
Replaces damaged cells
Repairing damaged tissues to produce genetically idneitcla daughter cells
Explain how cells differentiate to become specialised tissue
Chemical stimulus like signal protein
Some genes Active and these become transcribed
Mrna is translated
Cell structure and function is determined
2 roles of cells cycle
Asexual reproduction
Growth
Suggest why it was important that this experiment was carried out with a high light intensity
So that each temperature has same light intensity
So light is not limiting factor
Photosynthesis produces nutrients needed for growth
Abiotic factors
Light intensity Temperature Wavelength of light Co2 conc PH Minerals
Why would there be a low genetic diversity when species do aesexual reproduction
Low number of alleles in the gene pool
Produces genetically identical daughter cells
How to make sure experiemnt is reliable
Vary IV Repeats at each conc or experiment Measure DV Use organisms that are genetically similar Control abiotic factors Control
Define haploid cells
Half the original chromosome number in body celles
