Warm Up 11/30 & 12/3/12• Copy objective:

– I will be able to examine specialized cells.– I will be able to identify the components of DNA.

Answer:• What is the difference between plant cells and animal

cells?

• Do all animal cells look like “this” animal cell? If not, how are they different?

• How are cells different from each other?

10-15 minutes

Needs to be turned into the box by end of day today

• From Last Class– Cell Energy Write to Learn– Cell Energy Mini Assessment– Exit Ticket

• From Today– Cell Specialization Activity– DNA Practice– Exit Ticket

5 minutes

Cell Specialization

• You will be looking at 10 pictures of different cells from plants an animals

• Make observations of the following compared to the “traditional” plant or animal cells:– Compare

• Shape • Organelles• Number of each

organelle

• Size

20 min

Cell Specialization Elbow Partners

Answer these questions with your elbow partner

• Why do you think they are all different?• Why is a nerve cell long?• Why is a blood cell flattened?• Why does the muscle cell have more

mitochondria?• What makes each cell different?• Do they have the same DNA?

10 min

Muscle cell

Red blood cells

Ner

ve C

ell

Epithelial cell

Wood Stem Cell

Stem Cross Section

Bone Cell

Skin Cells

Stem cells…

15 min

• All living things contain DNA and RNA

 

• Building blocks of nucleic acids 

• DNA = deoxyribonucleic acid

 • it’s components are:

1. deoxyribose (sugar)

2. phosphate group

3. nitrogen base

• DNA Nitrogen Bases

1. adenine (A)

2. thymine (T)

3. cytosine (C)

4. guanine (G)

adenine ---thymineguanine --- cytosine

Apple-TreeChewing-Gum 

 

structure is a “double helix”

• DNA forms chromosomes• Chromosome are genetic material passed on

from parents to offspring                        

Notes Summary

• Write a 4 sentence summary about your DNA notes

5 min

Group Puzzle

• Step 1– Using your puzzle pieces find other students

and create a complete nucleotide

• Step 2– Now find a nitrogen base to pair with

• Step 3– Now find more nucleotides and create a DNA

section

10 min

DNA Practice

• Complete the DNA structure practice problems

10 min

Exit Ticket• Define these terms in your own words

– Cell differentiation– DNA– Nucleotide– Chromosomes

• What are the base pairings for DNA• Why are cells designed differently?

10 min