Study Guide - Swift Classroom

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Study Guide - Swift Classroom
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5.5
Date
Perlod
Name
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MULTICELLULAR LIFE
Study Guide
KEY CONCEPT
Cells work together to carry out
tissue
organ system
complex functions.
0rgan
cell differentiation
VOCABULARY
stem cell
MAIN IDEA: Multicellular organisms depend on interactlons among different cell
types.
Complete the diagram below that represents organization in multicellular organisms,
Gells
make
up
4.
+>
tissues
make
organs
up
make
up
organ
systems
List two examples of tissues found in plants
photosynthesis tissue; conductive tissue(e.g. xylem); protective tissue
5.
List two examples of organ systems found in plants.
shoot system; root system
6.
How does an organism benefit from organ systems that work together and communicate?
These systems help organisms carry out complex, specialized functions and
maintain homeostasis.
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MAIN IDEA:
7. What is the process by which unspecialized cells develop into specialized cells?
cell differentiation
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Do different types of cells have different DNA? Explain,
No. All cells have the same DNA, but different types of cells express different sets of genes.
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Specialized cells perform specific functions.
9.
What role does cell location play within a developing embryo?
The location helps determine how the cell will differentiate
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Unit 2 Resource Book
McDougal Littell Biology
Study Guide
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STUDY GUIDE, CONTINUED
MAIN IDEA: Stem cells can develop into different cell types.
Complete the concept map below about stem cell classification,
Stem cells
can be
SS
ed by
potential
e,g
e
origin
e,g
adult
e,g.
e
totipotent
pluripotent
multipotent
emryonic
1O, List the three identifuing characteristics of stem cells.
divide and renew themselves for long periods of time; remain undifferentiated in form;
develop into a variety of specialized cell types.
11. List one advantage of using adult stem cells and one advantage of using embryonic
stem cells,
Adult stem cells could avoid rejection issues and does not raise as many ethical concerns.
Embryonic stem cells can develop into virtually any type of cell and can be grown
indefinitely in culture.
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Vocabulary Gheck
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12. What is cell differentiation?
The process by which an unpecialized cell becomes specialized.
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13. Write
the following words in order from the largest structure to the smallest structure:
cell, organ, organ system, tissue
Organ system, organ, tissue, cell
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82 Study Guide
Unit 2 Resource Book
McDougal Littell Biology