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Chapter 3 A&P

Terms

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Small, membranous sac that stores substances within a cell. (P. 37)
vesicles
Process of a tumor becoming supplied with blood vessels. (p. 44)
vascularization
Gene that suppresses the development of a tumor; the mutated from contributes to the development of cancer. (p. 45)
Tumor-suppressor genes
Abnormal growth of tissue that serves no useful purpose. (p. 44)
tumor
Molecule of RNA (ribonucleic acid) that carries an amino acid to a ribosome engaged in the process of protein synthesis. (p. 36)
transfer RNA (tRNA)
Lethal genetic disease in which the newborn has a faulty lysosomal digestive enzyme. (p. 38)
Tay Sachs
Deepest layer of the epidermis, where cell division occurs.
epidermis-organism's outer layer of cells
stratum basale (p. 63)
Apparatus composed of microtubules to which the chromosomes are attached during cell division. (p. 43)
spindle
What are the three types of RNA made in the nucleus?
1. (rRNA) Ribosomal RNA
2. (mRNA) messenger RNA
3. (tRNA) Transfer RNA
A small space or cavity within the cytoplasm of a cell.
vacuole
Sperm production in males by the process of meiosis and maturation. (p. 44,339)
spermatogenesis
Minute particle, found attached to the endoplasmic reticulum or loose in the cytoplasm, that is the site of protein synthesis. (p. 36)
ribosomes
RNA (ribonucleic acid) occurring in ribosomes, structures involved in protein synthesis. (p. 36)
ribosomal RNA (rRNA)
A general term for the colloidal complex of protein that constitutes the living material of a cell. It includes cytoplasm and nucleoplasm.
protoplasm
Membrane that surrounds the cytoplasm of cells and regulates the passage of molecules into and out of the cell. (p. 34)
Plasm membrane
Formation of a vesicle that brings molecules into a cell;also called cell drinking. (p. 42)
pinocytosis
Taking in of bcteria and (or debris by engulfing;also called cell eating. (p. 42,211)
phagocytosis
Membranous vesicle(sacs) containing enzymes that catalyze reactions producing and decomposing hydrogen peroxide. (p. 37)
peroxisomes
Movement of water from an area of greater concentration to an area of lesser concentration across the plasma membrane. (p. 41)
osmosis
Part of a cell that performs a specialized function. (p. 36)
organelles
Production of eggs in femailes by the process of meiosis and maturation. (p. 44,343)
oogenesis
A haploid sex cell;either an egg cell(ova) or a sperm cell(sperm).
gamete
A cell that has one of each chromosome type and therefore half the number of chromosomes present in most other body cells;only the gametes (sperm and ova) are haploid.
haploid
Gene that contributes to the transformation of a mormal cell into a cancer cell. (p.45)
oncogene
Large organelle that contains the chromosomes and acts as a cell control center. (p.35)
nucleus
Organelle found inside the nucleus and composed largely of RNA for ribosome formation (pl., nucleoli). (p.36)
nucleolus

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