Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.

By the end of this section, you will be able to:Describe the four major types of lipidsExplain the role of fats in storing energyDifferentiate between saturated and unsaturated fatty acidsDescribe phospholipids and their role in cellsDefine the basic structure of a steroid and some functions of steroidsExplain the how cholesterol helps to maintain the fluid nature of the plasma membrane

By the end of this section, you will be able to:Describe the four major types of lipidsExplain the role of fats in storing energyDifferentiate between saturated and unsaturated fatty acidsDescribe phospholipids and their role in cellsDefine the basic structure of a steroid and some functions of steroidsExplain the how cholesterol helps to maintain the fluid nature of the plasma membrane

In this activity, students will have the opportunity to give nutritional advice to their peers and recommend a day of healthy meals to a visiting international student.

This presentation focus on which role nutrition plays in developing diabetes and how obesity affects diabetes development. Obesity and weight gain dramatically increase the risk of developing type 2 diabetes. But it’s not only the total calorie intake and the BMI that counts, so does the distribution between fat, protein and carbohydrates, in other words the composition of nutritions. In continuation of this it will be discussed how a restricting intake of carbohydrates might be the way to reduce or even eliminate the use of medication in diabetes treatments.

Narrator: Richard Steed.

In this activity, students will have the opportunity to give nutritional advice to their peers and recommend a day of healthy meals to a visiting international student.

In this activity, students will have the opportunity to give nutritional advice to their peers and recommend a day of healthy meals to a visiting international student.

The aim of this presentation is to expand the students’ knowledge about industrially produced trans fat (artificial trans fat). We will focus on how and why we produce trans fat. Furthermore, we will focus on the health consequences of eating trans fat.

Humans are omnivores (able to survive on many different foods). The omnivore’s dilemma is to identify foods that are healthy and avoid poisons. Taste and smell cooperate to solve this dilemma. Stimuli for both taste and smell are chemicals. Smell results from a biological system that essentially permits the brain to store rough sketches of the chemical structures of odor stimuli in the environment. Thus, people in very different parts of the world can learn to like odors (paired with calories) or dislike odors (paired with nausea) that they encounter in their worlds. Taste information is preselected (by the nature of the receptors) to be relevant to nutrition. No learning is required; we are born loving sweet and hating bitter. Taste inhibits a variety of other systems in the brain. Taste damage releases that inhibition, thus intensifying sensations like those evoked by fats in foods. Ear infections and tonsillectomies both can damage taste. Adults who have experienced these conditions experience intensified sensations from fats and enhanced palatability of high-fat foods. This may explain why individuals who have had ear infections or tonsillectomies tend to gain weight.