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21 Cards in this Set
- Front
- Back
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cell |
smallest living unit and the basic unit of function and structure for all living things |
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nucleus |
contains the genetic information and controls the activities of the cell |
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DNA |
Deoxyribonucleic acid |
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plasma membrane |
known as a semipermeable membrane that separates the contents of the cell from the surrounding fluid |
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intestinal fluid |
contains substances such as amino acids, sugars, fatty acids, hormones, neurotrasmitters and salts |
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selectively permeable (semipermeable) |
refers to the selective nature of the plasma membrane contains pores and channels that allow only particles of the right size or the right chemical nature to pass through |
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cytoplasm |
fluid matrix found between the plasma membrane and the nucleus that acts as scaffolding for organelles |
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organelles |
specialized units in the cell that perform certain functions little organs |
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mitochondria |
tlocations for cellular respiration that is the conversion of food to energy at the cellular level |
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ATP |
Adenosine Triphosphate
chemical the cell uses to store and transfer energy within itself |
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ribosomes |
the sites of protein synthesis in the cell |
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Endoplasmic Reticulum |
serves as a means for transport within the cell and is made up of many channels |
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golgi complex |
modifies and packages proteins destined for use in the cell or for export from the cell |
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lysosomes |
sacs that ocntain strong digestive enzymes |
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chloroplasts |
contain chorophyll which is necessary for photosynthesis |
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vacuoles |
compartements in the cytoplasm that act as places for secretion excretion and storage |
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chromatin |
where DNA is found when a cell isn't dividing |
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chromosomes |
condensed rod shaped bodies where dna is seen when the cell is dividing |
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mitosis |
doubling of the chromosomes prior to division useful in the growth and repair of our bodies |
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zygote |
cell created by the union of a sperm and egg contains a full set of chromosomes half from each parent |
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meiosis |
consist first of a doubling of chromosomes and then two susequent divisions |
