LEARNING OBJECTIVES By the end of this section, you will be able to: The AP® Biology curriculum is organized around four major themes called the Big Ideas that apply to all levels of biological organization—from molecules and cells to populations and…
In this section, you will explore the following questions: Connection for AP® courses Biology is the science that studies living organisms and their interactions with one another and with their environment. The process of science attempts to describe and understand the…
Figure 1.1 This NASA image is a composite of several satellite-based views of Earth. To make the whole-Earth image, NASA scientists combine observations of different parts of the planet. (credit: NASA/GSFC/NOAA/USGS) Chapter Outline 1.1 The Science of Biology 1.2 Themes and Concepts of Biology…
Let us now discuss some common examples of chemistry in everyday life which most of us never knew about. The Expiration Date on Bottled Drinking Water Have you ever wondered why there is an expiration date on a bottle of…
What are soap and detergents? Soaps are sodium or potassium salt of higher carboxylic acid such as stearic acid, palmitic acid and oleic acid, whereas detergents contain a long chain of alkyl groups. Detergents, in comparison to soaps, can also function…
Read More Chemicals of Food in Everyday Life The following chemicals are widely used in food materials. These substances do not have nutritional value except vitamins. Artificial Preservatives: They prevent spoilage of food by stopping the growth of microorganisms. For example,…
The basis for different types of reactions is the product formed, the changes that occur, the reactants involved and so on. Different types of reactions are 1. Combustion Reaction A combustion reaction is a reaction with a combustible material with…
Due to the vast amounts of chemical reactions happening around us, a nomenclature was developed to simplify how we express a chemical reaction in the form of a chemical equation. A chemical equation is nothing but a mathematical statement which…
What is a Chemical Reaction? A chemical reaction is in which the bonds are broken within reactant molecules, and new bonds are formed within product molecules in order to form a new substance. Chemical reactions are all around us, from…