1. TODAY IN SCIENCE
YOU WILL NEED:
 Pencil, Calculator, Log #4 (update)
 BioChemical Lab – 3 sheets 6 sides
Bookshelf-Please Staple
 Chemistry of Living Things Booklet
Was due yesterday

2. 1. Retakes available to those
receiving 142 or below
Retake Dates: (8 opportunities)- Please
schedule an appt.
• Fri. 16th
, Lunch
• Mon. 19th
Before School, Lunch
• Tues 20th
Before School, Lunch
• Wed, 21st
– After School
• Thur. 22nd
Before School, Lunch

3. Why BioChemistry?
Chemistry and biochemistry, its close
relative, are often referred to as the central
sciences because they unite physics and
mathematics, biology and medicine, and
the earth and environmental sciences.
By studying chemistry and biochemistry,
you open the door for understanding the
nature of chemicals and chemical
processes, thereby providing insights into a
variety of physical and biological
phenomena. It also puts you in an excellent

4. The behavior of atoms, molecules, and ions
determines the sort of world we live in, our
shapes and sizes, and even how we feel on a
given day. Chemists and biochemists that
understand these phenomena are very well
equipped to tackle problems faced by our modern
society. On any given day, they may be measuring
the amount of insecticide in drinking water,
comparing the protein content of meats,
developing a new antibiotic, or analyzing a moon
rock. To design a synthetic fiber or even the skin
of a space capsule requires a knowledge of
chemistry. To understand why an autumn leaf
turns red, or why a diamond is hard, or why soap
gets us clean, requires, first, a basic

5. World hunger is a global concern. Every day,
many children and adults have little to no food
to eat.
In an effort to grow stronger and pest resistant
food sources, biochemists have genetically
altered corn to do just this.
However, their research and efforts come with
many costs. Two to consider:
1)Financial – time and effort put into
development
-cost to farmers for buying this
seed type
2) Health Concerns – does genetic altering have
any detrimental effects to the environment,

6. 1. You can work individually or by
yourself.
2. Complete notes and highlighting
3. Goal for today is to complete a
minimum of 3 experiments
4. If working with a partner…..SHARE
the EXPERIMENTING
TODAY’s TASKS

7. BIOChemical VIRTUAL LAB
TERMINOLOGY – CORNELL NOTES

8. Highlight
Scientists use experiments to search for
cause and effect relationships. In other
words, they design an experiment so that
changes to one item cause something
else to change in a predictable way.
These changing variables can be
identified as independent, dependent
and controlled. We as scientist focus our
observations on the dependent variable
to see how it responds to the change
made to the independent variable.

9. Biotechnical Virtual Lab
Topic: BioTechnical Virtual Lab
Terminology
ECB European Corn Borer
Yield -Amount of crop production
Infestation -Overrun with pests and
parasites
Independent Variable - Types of Corn & their level of
infestation:
BT123; Super Harvest: NonBT; BT 456;
Golden Crop NonBT

10. BT CORN BioTransgenic Corn
Growing Conditions of Corn Soil, nutrients, watering
amounts,
light, heat, infestation
level
What is being Controlled? Soil, moisture, light,
temperature
and nutrition
Dependent Variable -Yield of corn plant
in terms of kernel
mass (g)

11. Virtual Lab
How does the European Corn Borer
affect the yeild of corn?
Since we know that the ECBs loves to
eat corn…what are the farmers afraid
of in terms of corn yield?
Kernel mass per each ear of corn=
“weighing” the total amount of corn
kernels produced by one ear of corn.

12. Hypothesis
Based on what you know about the
experiment…..
If we test four different types
of corn under similar
conditions and change only
the infestation level, then we
should be able to determine
and give evidence for which
corn type will provide the

13. Biotechnology Virtual lab
COLLECT YOUR DATA
ECB Level Mass of 1st
ear
Mass of 2nd
ear
Mass of 3rd
ear
Average (show work)
None
Low
• There are 8 different data collection tests.
• Continue until all Data is Collected.
Please
change

14. TODAY’S TASK LIST
1) Work with a partner from your table OR
individually.
2) Pick up your Assigned Computer.
3)You will be held responsible for its well-
being.
4) Ask Clarifying Questions as needed.
5)Begin experiments & collection of data
6) Our Goal is complete at least 3 tests by
the today.
* LABS may be presented in a different order
than on your paper.

15. Homework
1)Test #3 Corrections due Friday.
2)We will be working in class on the
Virtual Lab tomorrow and we will
collaborate our conclusions on
Friday.
3)This lab is due by Tueday of next
week.