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Life Science Warmup
Compare and Contrast
1) Mitosis vs. Meiosis
2) Heterotroph vs. Autotroph
3) Unicellular vs. Multicellular
4) Prokaryote vs. Eukaryote
October 4th, 2010
Short Answer Strategy
Goals:
1) Answer the question.
2) Demonstrate additional related knowledge.
3) Demonstrate deep understanding by connecting ideas
together in an organized fashion.
Brainstorm and list ideas.
Organize into an outline.
Write.
Check against brainstorm list and outline.
Include a diagram or graph if possible.
Practice Question 1
How do DNA, mRNA, and tRNA get used in protein construction?
Practice Answer 1
The first step in producing a protein is to make a copy (called mRNA) of
the information stored in DNA. To do this, the two strands of DNA separate
from each other, and each nucleic acid is attached to its opposite. C
attaches to G, A attaches to U (mRNA) or T (DNA). Each set of three
pieces is called a codon, and is enough information to identify an amino
acid. The whole set of codons for a complete protein is a gene. When the
mRNA copy is complete, the DNA re-attaches its two strands.
The second step in producing a protein is to move the mRNA through the
cell towards the ribosome.
Practice Question 2
How are the organelles of a cell like different parts of a factory?
Practice Question 3
Explain and diagram how a cell reproduces.
Practice Question 4
In what situations would a cell use the different kinds of transport?
Practice Question 5
What is the role of mitochondria in the cell, and why is this important? Use an
analogy or metaphor to help explain your ideas.
Practice Question 6
Why are multi-cellular organisms usually made of specialized cells, while unicellular organisms are always made of generalized cells?