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Chapter 4

Across
These ____ membranes bond cells to the underlying or surrounding connective tissues, serve as selective filters for particles that pass between connective tissue and other cells, and contribute to cell regeneration and repair.
In aerobic metabolism, thirty-six molecules of ____ are produced from 1 molecule of glucose.
_ ___ ___ receptors are the largest family of cell surface receptors.
The "power plant" of the cell because they transform organic compounds into energy that is accessible to the cell.
Its genes encode the information necessary for synthesis of proteins (two words)
This _____bilayer provides the basic fluid structure of the membrane and serves as a relatively impermeable barrier to all but lipid-soluble substances.
The control center for the cell
Mitochondria function as key regulators of ______ or programmed cell death.
During an action potential, the cell membrane becomes highly permeable to ___, causing it to depolarize and reverse its polarity, becoming positive on the inside and negative on the outside.
During muscle contraction, the thick myosin and thin actin filaments slide over each other, causing _____ of the muscle fiber, although the length of the individual thick and thin filaments remains unchanged.
Down
The site of protein synthesis
____ is the period of mitosis during which separation of the chromosome pairs occurs.
The ______is the site for the synthesis of three types of ribonucleic acid
_____ or sensory neurons carry information toward the CNS.
The ____ ____ modifies these substances and packages them into secretory granules or vesicles. (Two words)
______ ______ occurs when a cell releases a chemical into the extracellular fluid that affects its own activity. (Two words)
The sodium-potassium pump is the best known mechanism of ____ transport.
______ involves a sequence of reactions that convert glucose to pyruvate, with the production of ATP.
There are four main classes of ____: cadherins, selectins, integrins, and the immunoglobulin superfamily of proteins.