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Cells Systems 10/18

Science Work

TermDefinition
Cells The basic unit structure and function in living things.
Microscope An instrument that make smaller objects look larger made this discovery possible
Cell Theory A widely accepted explanation of the relationship between cells and living things.
Distinguish Two separate structure that are close together.
Organelle A tiny cell structure that carries out a specific function within the cell.
Structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. ... Abstract structures include data structures in computer science and musical form.
Function Different parts of the body that do different things.
Cell Wall A layer that surrounds the Cells of Plants
Cell Membrane A thin flexible barrier that surrounds a cell and controls which substances pass into and out of a cell.
Cytoplasm Fills the region between the cell membrane and the nucleus.
Nucleus A large oval organelle that contains the cell's genetic material in the form of DNA and controls many cell activities
Mitochondria Convert energy stored in making food
Asexual Reproduction by which offspring arise from a single organism, and inherit the genes of that parent only.
Sexual Reproduction Two parents combine their genetic material to produce a new organism which differs from both parents.
Fertilization The process in sexual reproduction in which egg cell and a sperm cell to perform a new cell.
Trait A specific characteristic that an organism can pass to its offspring through its genes.
Gene A sequence of DNA that determines a trait and is passed from parent to offspring.
Inheritance The process by which an offspring receives from its parents.
Allele A different form of a gene
Heredity The passing traits from parents to offspring
Dominant Allele An allele whose trait always shows up in the organism when the allele is present
Recessive Allele An allele that is hidden whenever the dominant allele is present.
Factor
Probability A number that describes how likely it is that a particular event will occur
Genotype An organism genetic makeup or allele combinations
Phenotype An organism physical appearance or visible traits.
Chromosome A threadlike structure within a cell's nucleus that contains DNA that is passed from one generation to the next.
Cell Cycle The series of events in which a cell grows prepares for division and divides to form two daughter cells
Pedigree A tool that geneticists use to map out the inheritance of traits
Meiosis The process that occurs in the formation of sex cells ( sperm and egg) by which the number of chromosomes is reduced by half.
Chromatids The structure formed when a chromosome divides during meiosis.
Mitosis The second stage of the cell cycle during which the cell's divides into two new nuclei and one set of DNA is distributed into each daughter cell.
Structure Structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized
Function Living things would not be what they were now if they didn't function
Created by: stingray12JC
 

 



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