Explore what proteins are, their structure, and their functions.

In this animated object, learners examine neutral fats, phospholipids, and cholesterol. The molecular formula and general function for each are shown.

Atomic weights are used to convert the mass of a sample into the number of moles of the element in the sample and vice versa. Four examples are provided for practice.

Learners click on the root word of a medical term in the left-hand column and drag it to its definition in the right-hand column. There is a time limit, so students will need to train themselves to recognize these root words quickly. Students may repeat the activity as often as they wish. A total of 74 terms are given in random order.

In this learning activity you'll study the structure of the cell membrane and construct it using the correct molecules.

In this learning activity you'll examine how diet and exercise affect stress.

Learners read a brief introduction to monosaccharides, disaccharides, and polysaccharides. The processes for dehydration synthesis and hydrolysis are shown.

In this interactive object, learners read about the seven hormones that help regulate blood glucose. A quiz completes the activity.

In this highly animated and colorful object, learners examine the steps of carbohydrate digestion. A brief quiz completes the activity.

Identify stages in mitosis

Multiple choice test: Ανασκόπηση κυττάρων

You'll review and learn biology HSA terms.