Washington State University - Pullman Campus

Learn about the distinction between prokaryotic and eukaryotic cells, their characteristics, and the presence of essential components such as the plasma membrane, DNA, cytoplasm, and ribosomes in all cells. Explore the diverse organelles found in eukaryotic cells, including the nucleus, endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles, cytoskeleton, mitochondria, chloroplasts, and cell wall. Understand the roles of these organelles in cellular processes such as protein synthesis, tran...

Explore the fundamental components and functions of cells with this introduction to cell biology. Learn about the Cell Theory, which states that all living organisms are composed of cells, and discover the basic structures found in all cells, including the plasma membrane, cytoplasm, DNA, and ribosomes. Understand the differences between prokaryotic and eukaryotic cells, their respective characteristics, and how they function. Dive into the role of the phospholipid bilayer in cell membranes and ...

"Chemistry: Biochemistry" explores the fundamental biomolecules essential to life: proteins, carbohydrates, nucleic acids, and lipids. Proteins, composed of amino acids, serve diverse roles like structural support and enzymatic functions. Carbohydrates, from simple sugars to complex polysaccharides, function in energy storage and structure. Nucleic acids, DNA and RNA, store genetic information and aid in protein synthesis. Lipids, including fats and phospholipids, contribute to energy storage,...

This document introduces the basics of chemistry as it relates to life sciences. It covers the fundamental concepts of matter and elements, emphasizing that elements are substances that cannot be broken down further by chemical reactions. It discusses the composition of living matter, highlighting the key elements: hydrogen, oxygen, nitrogen, and carbon, which make up 96% of living organisms. The structure of atoms, including atomic number, mass, and isotopes, is explained, along with how atoms ...

Chapter 2 of Biology 102 emphasizes the importance of understanding the basics of science and the scientific process to make informed decisions and communicate knowledge effectively. It aims to enhance scientific literacy by explaining how to evaluate scientific claims critically. Scientific claims, which are testable statements about how the world works, are prevalent across various sources, from social media to primary literature. Evaluating these claims involves examining the credentials o...

Chapter 1 of Biology 102 covers the basics of science and its application in biology, the study of life. It explains that science is both a body of knowledge and a process for acquiring that knowledge through evidence and experimentation. Biology examines living organisms, all of which share key characteristics: being composed of cells, using DNA, having metabolism, interacting with their environment, maintaining homeostasis, and evolving as populations. The chapter introduces the biologic...

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