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Starches and simple sugars
Subunits of DNA
Vitamins and minerals
DNA codes in their nuclei
Enzymes in their mitochondria
Amounts of water in their cytoplasm
Receptor molecules on their membranes
These cells have different DNA than the cells in other body systems.
These cells have specific types of receptors on their membranes.
Reproductive system cells could be harmed if they made contact with hormones from other body systems.
Cells associated with the female reproduc- tive system only respond to the hormone testosterone.
Other viruses on the surface of the cell
Mitochondria in the cell
Hormones in the cell
Receptor sites on the surface of the cell
Small molecules are obtained from large molecules during digestion.
Certain molecules are replicated by means of a template.
Receptor molecules play an important role in communication between cells.
Energy from nutrients is utilized for waste disposal.
A protein and a chromosome
A receptor and a hormone
A carbohydrate and an amino acid
An antibody and a hormone