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16 Cards in this Set

  • Front
  • Back

Describe polarity of cell at rest.

More positive outside due to higher concentration of Na+, negative inside due to negative residues on proteins and DNA phosphate groups.

Define cell

Smallest unit of life

Cytoplasm

Composed of cytosol and organelles and inclusions ( varies with cell type, could be granules, pigments, lipids, etc.)

Organelle

Metabolic machinery of cell

Anabolism

Building up more complex molecules

Catabolism

Breaking molecules into smaller ones

Ribosome

Protein synthesis

Endoplasmic reticulum

Transport in cell

Golgi apparatus

Packaging and processing of proteins (tags with carbohydrates)

Mitochondria

Powerhouse--ATP synthesis

Lysosome

Contains digestive enzymes to destroy waste

Centrioles

Useful in cell division (mitosis)

Cilia

Movement over cell surface

Flagella

Only cell with a flagellum in the human body is a sperm cell, allows movement of the entire cell

Nucleus

Contains chromosomes

Nucleolus

Synthesis of ribosomes