Warm-up #1 What is Life Science? (take a guess if you do not
know)
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Warm-up #1 What is Life Science? The life sciences comprise the
fields of science that involve the scientific study ofliving
organisms, such as microorganisms, plants, animals, and human
beings.fields of scienceliving
organismsmicroorganismsplantsanimalshuman beings The study of
LIFE!!!!!
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Warm-up #2 C haracteristics Of Living Things They have cells
They sense and respond to change They reproduce They have DNA They
use energy They grow and develop
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Warm-up #3-copy this adaptation Definition: The process by
which a living organism conforms to its environment Context: A
species adaptations over time improve its chance of survival.
organisms Definition: Any living things that can act or function
independently Context: Organisms live in the upper levels of the
atmosphere and deep in the oceans.
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Warm-up #4- copy this photosynthesis Definition: Process
through which light energy, water, and carbon dioxide are converted
to carbohydrate and oxygen in the presence of chlorophyll Context:
To be classified as a plant, an organism makes its own food through
photosynthesis. species Definition: A classification of related
living organisms that can freely interbreed without complications
Context: The bald eagle was once an endangered species. taxonomy
Definition: The science of classifying plants and animals into
species and logical groups of species Context: Scientists use
taxonomy to group living organisms.
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Warm-up #5 copy this
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Warm-up #6 What are microscopes? Noun An optical instrument
used for viewing very small objects, typically magnified several
hundred times. http://www.youtube.com/watch?v=X-w98KA8UqU
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Warm-up # 7 What Is Cell Biology? Cell biology is the
subdiscipline of biology that studies the basic unit of life, the
cell. It deals with all aspects of the cell including cell anatomy,
cell division (mitosis and meiosis), and cell processes such as
cell respiration, and cell death. Cell biology does not stand alone
as a discipline but is closely related to other areas of biology
such as genetics, molecular biology, and biochemistry.cell
anatomymitosismeiosiscell respirationcell deathgeneticsmolecular
biology
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Warm-up #8 Cells and the Cell Theory Finding Cells in Other
Organisms In 1673, Anton van Leeuwenhoek, a Dutch merchant, made
his own microscopes. Leeuwenhoek was the first person to see
bacteria. And he discovered that yeasts that make bread dough rise
are single-celled organisms. The Cell Theory All organisms are made
of one or more cells. The cell is the basic unit of all living
things. All cells come from existing cells.
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Warm-up #9 Cells A Few Large Cells Most cells are small. A few,
however, are big. A chicken egg is one big cell. Many Small Cells
There is a physical reason why most cells are so small. Cells take
in food and get rid of wastes through their outer surface. As a
cell gets larger, it needs more food and produces more waste.
Therefore, more materials pass through its outer surface. As the
cells volume increases, its surface area grows too. Learn how to
calculate a cells surface area-to-volume ratio in the next
slide.
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Warm-up #10 Parts of a Cell The Cell Membrane and Cytoplasm The
cell membrane is a protective layer that covers the cells surface
and acts as a barrier. Inside the cell is a fluid called cytoplasm.
Organelles Organelles are structures that perform specific
functions within the cell. Genetic Material DNA is the genetic
material that carries information needed to make new cells and new
organisms.
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Warm-up #11 Two kinds of Cells With or Without a Nucleus There
are two basic types of cells cells without a nucleus and cells with
a nucleus.
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Warm-up #12 What Are Eukaryotes? Organisms made of eukaryotic
cells are called eukaryotes. The Cell Theory Eukaryotic cells are
the largest cells. Unlike bacteria and archaebacteria, eukaryotic
cells have a nucleus. You can see other parts of a typical
eukaryotic cell on the next slide.
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Warm-up #13
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Warm-up #14 Name all the parts of the Animal Cell? (hint use
Worksheet)
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Warm-up #15 Name all the parts of the Plant Cell? (hint use
Worksheet)
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Warm-up #16 Organelles The human body contains many different
organs, such as the heart, lung, and kidney, with each organ
performing a different function. Cells also have a set of "little
organs", called organelles, that are adapted and/or specialized for
carrying out one or more vital functions. Organelles are found only
in eukaryotes and are always surrounded by a protective membrane.
It is important to know some basic facts about the following
organelles.
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Warm-up #17 The Cell Theory states :All living organisms are
composed of cells. They may be unicellular or multicellular. The
cell is the basic unit of life. Cells arise from pre-existing
cells.
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Warm-up #18 Cell Membrane Outer membrane of cell that controls
movement in and out of the cell Double layer
http://library.thinkquest.org/12413/structures.html
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Warm-up #19 Cell Wall Most commonly found in plant cells &
bacteria Supports & protects cells
http://library.thinkquest.org/12413/structures.html
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Warm-up #20 Nucleus Directs cell activities Separated from
cytoplasm by nuclear membrane Contains genetic material - DNA
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Warm-up #21 Chromosomes In nucleus Made of DNA Contain
instructions for traits & characteristics
http://library.thinkquest.org/12413/structures.html
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Warm-up #22 Cytoplasm Gel-like mixture Surrounded by cell
membrane Contains hereditary material
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Warm-up #23 photosynthesis ft sinTH sis/ noun 1. the process by
which green plants and some other organisms use sunlight to
synthesize foods from carbon dioxide and water. Photosynthesis in
plants generally involves the green pigment chlorophyll and
generates oxygen as a byproduct.
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Warm-up #24 Endoplasmic Reticulum Moves materials around in
cell Smooth type: lacks ribosomes Rough type (pictured): ribosomes
embedded in surface
http://library.thinkquest.org/12413/structures.html
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Warm-up #24 Ribosomes Each cell contains thousands Make
proteins Found on ribosomes & floating throughout the cell
http://library.thinkquest.org/12413/structures.html
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Warm-up #25 Mitochondria Produces energy through chemical
reactions breaking down fats & carbohydrates Controls level of
water and other materials in cell Recycles and decomposes proteins,
fats, and carbohydrates
http://library.thinkquest.org/12413/structures.html
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Warm-up #26 Golgi Bodies Protein 'packaging plant' Move
materials within the cell Move materials out of the cell
http://library.thinkquest.org/12413/structures.html
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Warm-up #27 Lysosome Digestive 'plant' for proteins, fats, and
carbohydrates Transports undigested material to cell membrane for
removal Cell breaks down if lysosome explodes
http://library.thinkquest.org/12413/structures.html
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Warm-up #28 Vacuoles Membrane-bound sacs for storage,
digestion, and waste removal Contains water solution Help plants
maintain shape
http://library.thinkquest.org/12413/structures.html
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Warm-up #29 Chloroplast Usually found in plant cells Contains
green chlorophyll Where photosynthesis takes place
http://library.thinkquest.org/12413/structures.html