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23 Cards in this Set
- Front
- Back
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Cell
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basic unit of life
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Organism
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composed of cells
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Eukaryotes
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Cells with a membrane around the nucleus
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Prokaryotes
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unicellular organisms such as bacteria
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Homeostasis
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internal stability
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Hypotonic
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concentration outside is lower than inside
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Hypertonic
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concentration outside is higher than inside
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Isotonic
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water moves in and out of the cell to establish equilibrium
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Facilitated diffusion
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when molecules cannot diffuse across a cell membrane even though there is a concentration gradient
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Carrier proteins
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binds to a molecule on one side of the cell membrane then changes shape in an effort to protect the molecule as it moves through the membrane
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Endocytosis
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when external substances are enclosed within the cell membrane and the pouch closes off and moves into the cell
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Exocytosis
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membrane bound organelle fuses to the cell membrane and its contents are released external to the cell
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Passive transport
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diffusion
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Gregor Mendel
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pea plants and genetics; dominant and recessive traits
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Alleles
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dominant are capital letters and recessive are lower-case letters
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Phenotype
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appearance of an organism resulting from the genotype
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Genotype
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genetic makeup consists of alleles inherited from both parents
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Homozygous
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when both parents give the offspring the same allele
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Heterozygous
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when the parents do not give the offspring the same allele for a particular trait
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Punnet square
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used to determine genetic inheritance
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What is the sugar in RNA?
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Ribose
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Accuracy
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degree of correctness
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Precision
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level of reproducibility
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