Download UNICELLULAR ORGANISMS

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Science Section 3.2 – STUDY GUIDE
Specialized cell
organ
prokaryote
nucleus
organ system
bone marrow
eukaryote
embryo
organism
unicellular organism
meristem
zygote
stem cell
tissues
Vocab words: UNICELLULAR ORGANISMS (Don’t forget to highlight key words!)
Unicellular
Organisms
Stem Cell
Organisms that are made up of only one cell, which have to carry out ALL
life functions.
A cell that can become many different types of cells
Prokaryote
A unicellular organism made of one prokaryotic cell, without a nucleus.
Example: bacteria
The locations for adult stem cells
Bone Marrow
Eukaryote
nucleus
A unicellular organism made of one eukaryotic cell, with a nucleus.
Examples: algae and fungus that causes athletes foot
A specialized structure located inside eukaryotic cells.
zygote
The name given to a fertilized egg
embryo
The location where many stem cells are found
Vocab words: MULTICELLULAR ORGANISMS (Don’t forget to highlight key words!
Be able to match these with appropriate pictures! (Levels of Organization Mini-Lab)
Specialized cell
A cell in a multicellular organism that performs one function (has one job)
Tissues
Groups of similar types of cells that work together to carry out specific
tasks. Examples: vascular (plants), connective (animals)
Groups of different tissues working together to perform a particular job.
Examples: roots, stem, leaves (plants), heart, brain, lungs (animals)
Groups of different organs that work together to complete a series of tasks.
Examples: shoot/root system (plants), digestive/immune system (animals)
Group of organ systems that work together to carry out all the jobs needed
for survival. The highest level of organization. Examples: sunflower, dog
Stem cells in animals are similar to this in plants. Found on the tip of plant
roots.
organ
Organ system
Organism
meristem
Vascular
dermal
ground
Epithelial
connective
muscle
nervous
Types of Tissue: PLANTS (Don’t forget to highlight key words!)
Dermal
Protection and prevention of water loss
Ground
Photosynthesis, food storage, regeneration, support, and protection
Vascular
Transport of water and mineral, transport of food
Types of Tissue: ANIMALS (Don’t forget to highlight key words!)
Connective
Epithelial
Helps support our body
Examples: bone, cartilage, blood
Skin and other important organs are lined with this
Nervous
Sends signals to the brain
Muscle
Three types of this tissue. Voluntary or skeletal (contain long fibers that
help us move), cardiac (help our heart beat), and smooth (food digestion)
Fiber
Differentiation
Complex
Other Vocab: (Don’t forget to highlight key words!)
Complex
Made of two or more cell parts
Differentiation
Process in which cells become specialized
Cell
Basic unit of life
Fibers
A long muscle cell, thread like
Cycle
A series of repeat events or activities
Cycle
Cell
Fill in the blank. ALL ABOUT UNICELLULAR AND MULTICELLULAR ORGANISMS
1.) Unicellular organisms carry out
all
the activities necessary to survive, like
responding to their environment, getting rid of waste, growing, reproduction, etc.
2.)
Unicellular
organisms can be prokaryotes and eukaryotes.
3.) Each type of cell in a multicellular organism has
one
specific job that is important
to the survival of the organism.
4.) All cells in a multicellular organism comes from a
single
cell, a fertilized egg.
5.)
Multicellular
organisms have stem cells (adults and embryos).
6.)
Multicellular
organisms are always eukaryotes,
Multiple Choice:
What is the correct sequence of the levels of organization from smallest to largest?
A. Cell, organ, tissue, organ system, organism
B. Organism, organ, organ system, tissue, cell
C. Cell, tissue, organ, organ system, organism
D. Tissue, organ, organism, organ systems, cell
Using this study guide, compare unicellular organisms to multicellular organisms.
Prokaryotic organisms
Eukaryotic organisms
-Unicellular
-Unicellular
-Unicellular or
-no membrane
-Contain
Multicellular
bound organelles
genetic
-membrane
-no nucleus
material
bound organelles
-simple
-Go through
-nucleus
cell division
-more complex