The scientific method is a process that scientists use to answer a question. It is composed of six parts: Problem/Question, Hypothesis, Procedure/Experiment, Data Collection, Analysis, and Conclusion. No matter what area of science you study, it is always based within the scientific method.

Scientific Method Files

Here is a link to a great and helpful video to explain the difference between different graph types-check it out! Graphing Video

Scientific Method Review Video

Graphing Rules Video

In biochemistry we are going to study three of the four major macromolecule groups: carbohydrates, lipids, and proteins. You will first be given an introduction/review to some major chemistry concepts that will help you to be successful, and those will then be applied throughout our unit.

A quick overview:

Carbohydrates are the humans body's main source of energy. They are composed of hydrogen, oxygen, and carbon atoms and can vary in size and shape. Our bodies breaks down simple sugars, called monosaccharides, very quickly. Complex carbs (or polysaccharides) take much longer to break down because they are composed of long chains of these molecules. These are important to give us long-lasting energy, versus the simple sugars that are more of an energy buzz.

Lipids include our fats, steroids, and waxes. We will focus on the fats because we are relating everything to our digestion. Fats are used for storage and energy. They are higher in caloric value, so we have to be careful sometimes how much we consume and which ones we are consuming. Fats are composed of the same three elements as carbohydrates, and like carbs, can vary in size. The two main types of fats are saturated and unsaturated.

The third group is our proteins. Proteins have numerous functions in the body and are at the center of our ability to do many of our daily processes. They are composed of amino acids and are made up of carbon, hydrogen, oxygen, and nitrogen atoms. They can be small or large, and are critical to our survival. One of the most important roles that proteins play is they speed up MANY chemical reactions. We call these enzymes. Enzymes can make reactions go up to one million times faster!

When you look at the process of digestion in the human body, you need to understand that we take in the foods that we eat (which are composed of proteins, carbs, and fats), and the body works to break them down into their most simple parts. This is so that the body can make use of them. "Digestion" is literally a mechanical and chemical breakdown of these foods so that we can obtain the simple parts. We then absorb these simple molecules (amino acids, monosaccharides, and simple fats) into our bloodstream, which will deliver them throughout the body to our cells. Your cells thrive on these materials and use every bit they can to complete all of their jobs!

A simple glucose molecule (carb)

Two types of fats:

Amino Acid (protein)

Enzyme reaction, example 1: showing dehydration synthesis (building)
Enzyme 1.jpeg

Enzyme reaction, example 2: showing hydrolysis (breakdown)
enzyme 2.jpeg

Basic overview of digestion: this shows the major organs of the digestive pathway (accessory organs not shown)

Biochemistry Files

Click here to link to Alien Juice Bar: Here

(carbohydrate, lipid, and protein review sheets)

Carbohydrate Review Video

Lipid Review Video

Protein Review Video

Crash Course Review Video

Quizlet Practice Flashcards