Transcript Keystone Warmups - UDKeystone

Themes of Life
#1
#2
#3
#4
A.
List the things that are alive. How do you know they are alive?
B.
How many prokaryotic and eukaryotic organisms do you see?
C.
Use one structure from one living thing to identify how the
structure serves it’s function. How could the structure of # 4
serve it’s function of storing, copying and transmitting genetic
information?
D.
Starting with cells and ending with organism detail the levels
of organization within the kangaroo.
For the Teacher:
List the things that are alive. How do you know they are alive?
Alive: Kangaroo/Joey, Macrophage (the big cell with tentacles coming out of it that is part of your immune
system), the little tic tac things connected to the tentacles – bacteria
Although DNA is essential for life, by itself it is not alive. It is a chemical.
Draw the kids out by asking them about movement and breathing ask them to explain why these are not
characteristics of life. Answer: there’s plenty of things that are alive, but don’t move and don’t
breath – like bacteria and plants.
How many prokaryotic and eukaryotic organisms do you see?
You see two eukaryotes (the macrophage and the kangaroo). One prokaryote (the bacteria that the
macrophage is attacking.
Use one structure from one living thing to identify how the structure serves it’s function. How could the
structure of # 4 serve it’s function of storing, copying and transmitting genetic information?
I think they will head toward the kangaroo. Ears – large/cupped detect sound and avoid predators, legs –
massive thigh muscle, large surface area of foot/forearm for ground contact all related to
locomotion/hopping. Tail – counter balance to assist with hopping and stabilization, Pouch – nurse
young promotes growth and development, avoid predation, move young at speed of adult.
If they go macrophage cell – tentacles (actually called filapodia) help catch bacteria, cell membrane –
regulates exit and entry (both types of cells have a cell membrane).
DNA question – DNA double helix is very stable (secures info), hydrogen bond between bases can be
broken (for copying), bases (ATCG) code for specific amino acids that make proteins (transmit info)
Starting with cells and ending with organism detail the levels of organization within the kangaroo.
Cells – tissues – organ (multiple tissues combined) - organ system (digestive/multiple organs) - organism
I
II
III
IV
Organic Macromolecules
Match each type of
molecule
1. Carbohydrate
2. Lipid
3. Protein
4. Nucleic acid
• Match each type of
molecule to one major
function
A. Heredity
B. Energy
C. Enzymes
D. Energy storage
Cells and Cell Transport
Mitochondria & Chloroplast-Developed from
prokaryotic cells? WHAT?!?!
Check out this really good
explanation…http://www.youtube.com/watch?v=fA
jev01mDZM
Related questions:
• Why are these two organelles unique?
• What are two characteristics about mitochondria
and chloroplast that make it similar to prokaryotic
bacteria cells?
• What is the endosymbiotic theory?
Energy
http://udkeystone.wikispaces.com/Energy
Cell Reproduction and Genetics
1. Mitosis is composed of 4 separate phases and
cytokinesis. What are the 4 phases called and what
are some key events that happen in each? Prophase
(break down of nucleus, chromatin condenses into
chromosomes, centrioles split ), Metaphase
(chromosomes line up in the middle of the cell),
Anaphase (centromeres split and chromatids are
pulled apart), Telophase (reverse of prophase –
nucleus is put back together and chromosomes
unwind to chromatin)
2. When a baby organism is created through sexual
reproduction, the baby usually inherits a gene from
mom and a gene from dad.
a.
b.
What structure within the cells contains these genes?
chromosomes
What process creates the sex cells that carries the
genes? meiosis
3. Suppose a mom with blue eyes (Bb)
creates an offspring with a dad, who has
brown eyes (bb).
a. The B or b represent _________ which
are
forms of a gene. alleles
b. Which is the dominant trait? blue
c. Using a Punnett square, what color eyes
could this offspring have? 50% blue or
50% brown
Protein Synthesis
http://udkeystone.wikispaces.com/Protein+Synthesis
Evolution and Phylogeny
http://science.discovery.com/interactives/literacy/darwin/darwin.html
Go through this fun tutorial on Natural Selection and then play
“Who Wants to Live a Million Years”