Histology Ch. 2- Cell Structure and Function

Define histology.

Histology is also known as:

Define cell.

Cell structure defines:

The body is composed of:

Similar or related cells form ___. They serve a ___ ___ or function in a particular manner.

The four basic tissues are:

Tissues can contain a mixture of functionally specialized cells (___) and less specialized supporting tissue (___).

Tissues form:

Groups of organs that serve a common function are known as:

Structure is ____ correlated with ___.

Functions are based on the ___ properties of cells. These include:

Cell functions are basically:

What are the basic molecules found in cells?

The basic molecules form the ___ that we see as well as contribute to the ___ of the cell.

The basic components of the cell are the ___, divided into ___ and ___, subcellular elements known as ___, and ___.

Each eukaryotic cell is surrounded by a ___ )also known as the cell membrame, plasmalemma, or plasma membrane).

The cell membrane is bilayered and semipermeable, composed of:

The phospholipids are amphipathic because they have:

Cholesterol in the cell membrane is ___ and provides ___.

The cell membrane being semipermeable means that:

The phospholipid bilayer is ___. Molecules within it can move around a bit; this is also known as the "___ ___ ___" of the plasma membrane.

What are the functions of the cell membrane?
1. maintain ___ ___ of the cell
2. controls movement of substances ___ and ___ of the cell
3. regulates cell-cell ___ or ___
4. recognize antigens, foreign cells, and ___ cells by way of ___
5. acts as an ___ between cytoplasm and "beyond"
6. establishes ___ systems for specific molecules
7. changes extracellular ___ and/or ___ signals into ___ events (part of communication process).

The cell membrane proteins either span the lipid bilayer ( ___ or ___ proteins) or are present on the ___ (internal leaflet) side or external (outer leaflet) side ( ___ proteins).

Some transmembrane proteins are ___ proteins, having ___ folds from the ___ of the cell to the ___ with portions of protein molecules having receptor sites for specific ___ ___. The proteins have ___ ____.

The cell membrane is ___ visible with the ___ microscope.

What is seen is the ___ or "fuzzy coat" of ___ chains attached to ___ proteins or ___ of the outer leaflet or extracellular matrix molecules.

The glycocalyx protects the cell from:

___ (oxygen and lipids) and ___ ___ molecules (water) move across the cell membrane by ___ ___ in response to the ___ ___.

Molecules move from ___ ___ to ___ until ___ are the same.

___ leak creates an ___ ___ across the membrane.