1. 01/08/15- No gum Please!
Agenda
Daily question
Chapter 1-2
Packet
lab
Materials
Pen/Pencil
Notebook
Packet
book
Daily Question: Write down some structures that are found in plant cells but NOT animal cells.
Objective: Today we will identify structures in plants and animal cells under microscopes

2. Ribosome's Small structures in the cytoplasm that create proteins.
Ribosome's are either free floating in the cytoplasm of a cell or attached to endoplasmic reticulum in a cell.

3. Vacuole Fluid-filled, membrane-surrounded cavities inside a cell
Fills with food being digested and waste material that is on its way out of the cell
Like your suitcase, a vacuole is a temporary storage space for the cell.

4. Lysosome Also called cell vesicles
Spherical organelles surrounded by a membrane
They contain digestive enzymes
Where the digestion of cell nutrients takes place

5. Plant Vs. Animal Cell Lab
Obtain materials from teacher
Set magnification to 10x first (low power)
Put Elodea slide under microscope observe what it looks like on low power –draw a picture
Put Elodea slide on high power, observe and identify organelles-draw scientific picture in notebook
Have one student come up to Ms. Mildebrath and swab cheek cell, Ms. Mildebrath will put dye on slide, return with animal cell to group
Put animal cell under low power microscope, observe organelles and structures- draw scientific drawing in notebook
Put animal cell under high power and observe changes, identify organelles and draw observations in notebook

6. Scientific Drawing Example
Cork cell
Cell membrane
Cork cell x

7. Photosynthesis 𝐻₂0 +𝐶𝑂₂ ⟶𝐶₆𝐻₁₂𝑂₆ +𝑂₂
Is the process that plant cells use to change the energy from sunlight into chemical energy. Takes place in the chloroplasts.
Chlorophyll- a light absorbing pigment, or colored substance, that traps the energy in sunlight.
Chemical equation-
𝐻₂0 +𝐶𝑂₂ ⟶𝐶₆𝐻₁₂𝑂₆ +𝑂₂

8. Cellular Respiration 𝐶₆𝐻₁₂𝑂₆ + 𝑂₂ ⟶ 𝐻₂0 +𝐶𝑂₂
Cells use oxygen to release energy stored in sugars such as glucose. Takes place in organelles called mitochondria.
Chemical equation-
𝐶₆𝐻₁₂𝑂₆ + 𝑂₂ ⟶ 𝐻₂0 +𝐶𝑂₂

9. Bite Mark Evidence Video
Investigators can analyze bite marks for characteristics to help them identify victims or suspects as well as to exclude others. Marks can be left on a victim’s skin or other objects, such as Styrofoam cups, gum, or foods. Saliva or blood may be left behind that can be tested for DNA. Dental records including x-rays can also provide useful information, especially when attempting to identify a victim.
Features to analyze:
Type of bite mark (human or animal)
Characteristics of the teeth (position, evidence of dental work, wear patterns, etc.)
Color of area to estimate how long ago the bite occurred (old or recent bite)
Swab for body fluids for DNA tests
Bite Mark Evidence Video
Did you know?
The most famous incident where bite mark evidence led to a conviction, was in the case of the notorious serial killer, Ted Bundy. He was responsible for an undetermined number of murders between 1973 and 1978 and was finally tied to the murder of Lisa Levy through bites that he had inflicted on her body.
Images:

10. “impressive” evidence!
It’s time to
investigate
some
“impressive” evidence!
Image:

11. Bite Mark Lab
Include your lab group members names
Examine the candy in the bag, DO NOT TAKE OUT OF BAG
Use your knowledge of bite marks, evidence, to figure out which suspect bit the candy
On paper, write in complete sentences which suspect and why