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Science Test....

Ribosomes (Both) A small grain like sturture in the cytoplasm of a cell where proteins are made.
Cell membrane (Both) A cell sturture that controls which substances can enter or leave the cell.
Endoplasmic reticulm (Both) A cell sturture that forms a maze of passageways in which proteins and other material are carried out from one part of the cell to another.
Cell wall A rigid layer of nonliving material that surrounds the cells of planst and some other organsim.
Nucleus A cell sturture that contains nucleic acid the chemicals insturtions are what direct all the cells activities
Mitochondria Rod shaped cell sturtures that produce most energy needed to carry out the celles function.
Golgi Bodies A sturture in a cell that recessive proteins and other newly formed material from the endoplasmic reticulm packages them and distributes them to other parts of the cell.
Chloroplasts A cell sturture that captures energy from the sun and uses it to produce food.
Vacuoles A water filled sac inside a cell that acts as a storage area.
Lysosomes A small round cell sturture that contains chemicals that break down large food particles into smaller ones.
Gene A segment of DNA of a chromosome that codes a specifc trait.
Chromosome A double rod of condensed chromatin contains DNA that will carry gentic imformation.
Trait A characteristic that an organism can pass onto it's offspring through genes.
Allele Different form of gene
Donimant Allele An allele who's trait always shows up in the organsim when the allele is present.
Recessive Allele An allele that is masked when a dominant allele is present.
Homozygous Having two identical alleles for a trait.
Heterozygus Having two different alleles for a trait.
Genotype An organsims genetic make up or allele combinations
Phenotype An oransims physical apperance or visiable trait.
Robert Hooke One of the first people to observe cells.
Leeuwenhoke Made the first simple mircoscope.
Schiedian Concluded that all plants are made up of cells.
Schwann Concluded that all animals are made up of cells.
Rudolf Proposed that all cells come from other cells.
Prophase Condenses to form chromoses
Metaphase Chromosomes attach to spindle fibers
Ananphase Two chromatids sperate
Cytokienes New nuclear membranes form.
The double-stranded chromosomes move to the center of the cell and sperate. Meiosis 1
The chromosomes pairs sperate. Meiosis 2
Four cells form with half the number of chromosomes as the parental cells. End meiosis
The chromosomes are copied. Beginning of meiosis
The centomeres divide and sperate. Meiosis 2
Created by: pop147