BASIC BIOLOGY & METHODS of SCIENCE

Introduces fundamental biological mechan-
isms that are basic to an understanding of
how organisms live and function. Presents
some of the fundamental intellectual, phys-
ical & conceptual tools of scientific study.

CELLULAR BIOLOGY
Fundamental structures and processes of cells: Cytology & Histology, Cell Structure and Function, Cellular Respiration. 3 pro- grams. 115 slides, rich texts.
EPSS-0035X SLIDES
$179.95

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SAVE OVER $44.00 ON 3 SLIDE SET BUNDLE ORDER EP #SS-0035X.......$179.95
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CYTOLOGY AND HISTOLOGY Slides order #SS-0035S.......$125.00

The cell's organelles and their functions are highlighted through histological
photomicrographs to show location of the various structures in different tissues. Each
photomicrograph is identified in relation to tissue type, location and function. These are
carefully selected color slides of nervous, epithelial, muscular, connective and other
tissues taken with both light and electron microscopes. An excellent collection, espec-
ially for premedical and clinical technology students, to be referred to again and again! 75
frames and guide. Slides, video or filmstrip. (Video order SS-0035V.....$79.95; filmstrip
order SS-OO35F......$49.95.)

CONTENT SAMPLE: 11. All of the structures enumerated serve functions within cells.
Cells in turn function within tissues and are often highly modified for these functions. There are
several basic tissue types in higher animals, one is epithelia. On the basis of shape, there are
three kinds of epithelia. Cuboidal epithelium is composed of cells of approximately the same size
that appear to be cube-shaped. These, as some other epithelia, may be undulipodiated (ciliated).
The undulipodia protrude from the free surface and may function, for example, in moving sub-
stances along the membrane. These tissues appear mostly in glands and ducts. Seen here is a
section of human kidney with its cuboidal epithelia.
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CELL STRUCTURES & THEIR FUNCTIONS Slides order #SS-0030S.......$49.95

A collection of electron micrographs and accompanying artwork which describe
the basic structure of cells and their organelles. 20 frames, cassette and guide.
(Filmstrip order SS-0030F.......$15.00.)

CONTENT SAMPLE: 2. In the evolution of more complex multicellular organisms such
as trees or human beings, cells have become specialized and grouped together in tissues to carry
out specific functions. This division of labor affords greater efficiency in a multicellular form.

Shown here are specialized cells from the meristematic tissue of an onion root tip. The
chief function of root tip cells is to grow, divide and differentiate into all other types of tissues.
They are found in the rapidly growing parts of plants such as stems, roots and buds. In the
close-up in the left half of the frame, the cells can be seen undergoing various stages of mitotic
division. Can you identify them? On the right, the organization of individual cells into tissues is
easy to visualize. Other specialized tissues in animals and plants include epithelial, muscular,
nervous, conductive and protective tissues. Even these specialized types are further differentiated
into subspecialties. Epithelial, for instance, can be made up of flat, pancake-like squamous
cells, as on the surface of our skin, protecting us from mechanical injury and desiccation, or it
can be made up of elongated pillar-shaped, columnar cells like those found lining the stomach
and intestine.
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CELLULAR RESPIRATION Slides order #SS-0025S......$49.95

A selection of artwork combined with live photographs depicting aspects of
energy release in biochemical cycles. 20 frames, cassette and guide. (Filmstrip order
SS-0025F......$15.00.)

CONTENT SAMPLE: 3. Chlorophyll is a pigment present in plant leaves and stems, and
is responsible for absorbing the sun’s light energy. It absorbs light in the violet, blue and red
wavelengths, and reflects green light. Thus it imparts a green color to the tissues in which it is
located. Chlorophyll pigments are housed within specialized cellular organelles known as
chloroplasts, like the one shown here. They are disc- or lens-shaped structures surrounded by
two membranes. Within the chloroplast is a network of flattened membranous sacs, stacked
together in groups called grana. It is here in the grana, that the chlorophyll molecules are
located.

When light is absorbed by a chlorophyll molecule, electrons are boosted to a higher
energy level, with three possible consequences: (1) the energy may be converted to heat; (2) it
may be remitted as light, as in fluorescence; or (3) the energy may stimulate a chemical
reaction, as happens in photosynthesis.

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RELATED PROGRAMS WORTH NOTING
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AN INTRODUCTION TO CELLS Video order #FV-1O32V......$99.95

A beautifully executed introduction with difficult concepts slowly added to a
framework of simpler ones! Perfect for the new biology student. Covers: CELL GROWTH
AND DEVELOPMENT--the cell as the basic building block of life, whose function is
defined in the nucleus. WITHIN THE NUCLEUS--the nucleus as a library. REGENER-
ATION --why some simple organisms can regenerate while others can only reproduce.
THE GENETIC CODE--the books of the nuclear library are the chromosomes, and the
chemical coding lies inside the genes. DNA, RNA AND PROTEINS--passing on the
genetic information, the role of amino acids. WHY EACH OF US IS DIFFERENT
--inheritance, dominant vs. recessive genes. 6 parts (average 75 frames, 11 minutes
running time each) and guide. (Filmstrips order FS-1032F......$99.95.)

REVIEWS: Some fairly sophisticated concepts of cell biology and genetics are carefully
unraveled...through pertinent photographs, captioned diagrams, captivating cartoon gimmicks,
and expressive narration of a clearly developed script...a supplementary or advanced resource in
upper elementary and junior high..." Booklist.
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~0592-091~ Section of human kidney showing cuboidal epithelium. photo by Educational
Images Ltd.

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