Unit 1 Biology Study Guide

Science is a method of discovering reliable knowledge about nature. Biology is concerned with the study of life. Biology is a broad field, covering the minute workings of chemical machines inside our cells, to broad theories of ecosystems and global climate change. In Principle of biology 1, many topic where covered. However the main goal of the course was to provide background knowledge for the study of cell, invertebrates, vertebrates, plants, human anatomy, and environment. It also provided students with the basic understanding of using scientific method to get the valuable fact of nature and dependable data that can be later passed as laws. The diversity of life on earth involves the elements of biological molecules which are Proteins, Lipids, Nucleic Acids, and Carbohydrate, their shapes and their importance to both plants and

Carbohydrate is made of carbon, oxygen, and hydrogen and these carbons form four, oxygen forms two, and hydrogen forms one. Carbohydrates’ 3 monosaccharides structures differ because they have the same chemical. Lipids are a heterogeneous class of an organic substances grouped together on the basis of common soluble properties. Plant and animal cell and gene expression is basically the process of central dogma. This can be explained as the process of transcription and translation, by which the data in genes flows into Proteins. The cells of all organisms, whether prokaryotic and eukaryotic alike are surrounded by a thin sheet called the cell membrane. This membrane helps to regulate what goes in or out of the cell through a process called selective permeability. Molecules that can move freely over the membrane follow concentration gradients, moving from the higher concentration area to the region of lower concentration using energy or not using energy called Passive or Active