TODAY IN SCIENCEYOU WILL NEED:

Pencil, Calculator, Log #4 (update)

BioChemical Lab – 3 sheets 6 sides Bookshelf-Please Staple

Chemistry of Living Things Booklet Was due yesterday

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

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 position to choose from a wide variety of useful, interesting, and rewarding careers. 

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 understanding of chemistry. And knowledge of biochemistry is a prerequisite for studying such vital topics as the mechanism of the recombination of DNA molecules, the mode of action of a life-saving drug, and metabolic processes of all sorts.

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, human health, etc.?

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

BIOChemical VIRTUAL LAB

TERMINOLOGY – CORNELL NOTES

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.

Biotechnical Virtual LabTopic: BioTechnical Virtual LabTerminology

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

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)

Virtual LabHow 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.

HypothesisBased 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 highest yield and withstand ECB attack.

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

TODAY’S TASK LIST1) 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

data6) Our Goal is complete at least 3 tests

by the today.* LABS may be presented in a different

order than on your paper.

Homework1)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.