Movement ;an action by organism or part of organism causing change in place and position
Respiration; the chemical reaction in the cells to break the nutrient molecules to release energy
Sensitivity the ability to detect or sense stimuli in the internal or external environment and to make appropriate response
Growth the increase in the dry mass and size caused by increase in the cell number and cell sizd
-reproduction the process of producing the more of the same kind of organism
-excretion the removal from organism of the waste product, toxic materials and substances in excess
of requirements
nutrition taking in substances for energy growth and development
species a group of organisms that reproduce to produce fertile offspring
catalyst a substance that increases the chemical reaction and not changed by the reaction
enzyme protein of biological catalyst which increases the rate of reaction and not changed at the end of the reaction
limiting factors something present int he environment in such short supply that restricts life processes
balanced diet getting all the nutrients in right amount and proportion
-absorption the movement of small food molecules and ions throught the wall of intestine into the
blood
-assimilation the movement of digested food molecules into the cells of the body where they are used,
bcoming part of the cell
egestion passing out of food that has not been digested and absorbed as faeces through the anus
pathogen disease causing organism
transmissible disease disease in which the pathogen can be passed from one host to another
active immunity defence against pathogen by the antibody production in the body
passive immunity short term defence against pathogen by the antibody acquired from another
individual
deamination the removal of nitrogen containing part of amino acid to form urea
-neurons the nerve impulse as a electiral signal that passes along nerve cells
sense organ a group of receptor cells responsing to specific stimuli
-hormone a chemical substance produced by glands and carried by blood that alters the activity of
one or more specific target organs
homeostasis the maintenance of a constant internal environment
drug any substance that is taken into the body that modifies or affects the chemical reaction og the
body
-sexual reproduction a process involving the fusion of nuclei of two gametes to form zygote and the
production of offspring that are genetically different from each other
asexual reproduction a process resulting in the genetically identical offsprings from one parent
sexually transmitted infection infection that is transmitted via body fluids through sexual contact
inheritance the transmission of genetic information from generation to generation
chromosome the thread like structure of dna that carries the genetic information in the forms of gene
-gene a lenght of dna that codes for a protein
-allele a version of gene
haploid nucleus a nucleus containing a single set of unpaired chromosome
diploid nucleus a nucleus containing two sets of chromosome
mitosis nuclear division giving rise to genetically identical cells
-meiosis reduction division in which the chromosome number is halved from diploid to haploid
resulting in genetical different cells
genotype the genetic make-up of an organism in terms of allele present
phenotype observative features of organism
dominant allele an allele that is expressed if it is present
recessive allele an allele that is only expressed when there is no dominant allele of gene present
sex-linked characteristic characteristic in which the the gene responsible is located on sex
chromosomes and that it makes it more common in one sex than in the other
-variation the difference between individuals of the one species
gene mutation the change in base sequence of dna
-adaptation the process resulting in natural selection, by which the population become more suited to
the environment over many generation
food chain showing the energy flow from one organism to the next beginning with a producer
-thropic level the position of the organism in a food chain food web pyramid of number and pyramid
of biomass
-food web the network of interconnected food chains
decomposer the organism which gets its energy from dead and waste organic material
community
ecosystem
genetic engineering
sustainable development
starch
reducing sugar
protein
lipid
DNA structurecholera