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Questions and Answers List

Question	Answer
Cells, Tissues, Organs, Systems	4 Categories of Human Body Structures
The basic unit of all living things	cell
forms the boundary of the cell	cell membrane
makes up the body of the cell	cytoplasm
is the small, round structure in the center of the cell	nucleus
are in the nucleus of the cell; they contain genes that determine hereditary characteristics	chromosomes
is a group of similar cells performing a specific task	tissue
produces movement	muscle tissue
conducts impulses to and from the brain	nerve tissue
connects and supports various body structures: adipose (fat) and osseous (bone)	connective tissue
is found in the skin and lining of the blood vessels, respiratory, intestinal, urinary tracts, and other body systems	epithelial tissue
two or more kinds of tissue, together performing special body functions	organs
surrounded and protects the individual cell	cell membrane
small, round, structure within the cell containing chromosomes and nucleoplasm ( DNA deoxyribonucleic acid) and RNA (ribonucleic acid)	Nucleus
linear strand made of DNA carrying genetic information	chromosome
study of cells including the formation, structure, and function of cells	cytology
contained within the nucleus, is transcribed from DNA by enzymes and plays a crucial role in protein synthesis.	RNA Ribonucleic acid
specific segment of base pairs in chromosomes; functional unit of heredity	gene
cells divide and multiply to form two cells	mitosis