Introduction: Living things go through chemical reactions everyday. A chemical reaction is a process in which one or more substances are chemically changed into one or more new substances. Examples of chemical reactions are as simple as typing on a key board, watching T.V., digesting food, and breathing. Breathing is a chemical reaction because humans take in oxygen which turns the glucose (sugar) into energy which humans need to survive. Enzymes can reverse a chemical reaction. For example, A+B→C. This is a general equation for the building of large molecules. C→A+B is a general equation for the breakdown of large molecules. Enzymes are reversing this chemical reaction. An enzyme is a chemical or catalyst produced by cells to speed up one specific reaction. Enzymes are found in all living things. Enzymes are necessary to all living things on Earth. The substrate is the molecule that the enzyme acts on. Think of it as a lock and key. The enzyme is the lock and the substrate is the key, so they lock together. The part of the enzyme that the substrate bonds to is the active site. The active site is basically where the substrate fits into the enzyme. Two of the many characteristics of enzymes would include that they are not used up in a reaction. That means that the enzymes never run out. Also, enzymes can only catalyze 1 type of reaction. Catalyze means to speed up. Each enzyme has a specific shape that allows it to do its job. In order for enzymes to function properly, they…
Week 3 Biology Assignment
How do living things get the energy from the sun?
In my report I’ll explain how living things get energy from the sun.
Energy is the capacity to do work. Light, heat, electricity, and motion are all forms of energy; some energy is lost through transfer or conversion. *(Biology Text book)
Adenosine Triposphate (ATP) is an energy carrier. *(Biology Text Book)
Autotrophs harvest energy directly from the environment, containing carbon from inorganic molecules.…
Biology – 4.1 Introduction to cellular respiration and fermentation:
Aerobic Cellular Respiration: is the process that extracts energy from food in the presence of oxygen. The energy is used to synthesize ATP from ADP and Pi. The ATP molecules are then used to supply energy directly to the cell for their energy-demanding activities.
The equation bellow shows how glucose and oxygen are used to release ATP:
C6H12O6 + 6O2 6CO2 + 6H2O ∆G = -2870 KJ/mol
Aerobic cellular respiration can…
HOUSTON COMMUNITY COLLEGE SYSTEM
Biology 1407 General Biology II CRN # 59590
Instructor: Philip H. White Days: T. Th.
Office # (713) 718 - 6050 Time: 5:30 – 8:30 PM
E-mail firstname.lastname@example.org Room: T. LHSB 316, Th. LHSB 315
Lecture and Exam Schedules
Week Date Topics Chapters
1 08/27/13 Descent with Modification 22
General considerations of Course
1 08/29/13 Descent with Modification 22
Part I. Introduction
Chapter 1. What is Human Ecology?
Chapter 2. Environment, Technology, and Culture
What Is Human Ecology?
Chapter 1. WHAT IS HUMAN ECOLOGY?
Another Unique Species
(Title of Robert Foley’s 1987 book on evolutionary human ecology)
What is human ecology? Human ecology is an approach to the study of human behavior marked by two committments. First, human ecologists think that humans should be
studied living systems operating in complex environments…
Introduction to Biological Anthropology!
In this course, you will learn about the field of biological anthology, a multidisciplinary, scientific discipline focusing on humans as a biological species. As such, we will be galloping through a number of different research areas dealing with the study of human biology and history. This means we will be moving quickly through the course material week to week. It is essential that you endeavor to stay up to date with the course material and…
This course is designed to be an introduction to biology. This includes discussions of cellular structure and composition as well as the functions of individual structures in the cell as they relate to the organism as a whole. This course will also include information on genetics as it relates to heredity as well as discussions on how DNA contains all of the information for creating a living organism. We will also be discussing Biology on a larger scale with topics such as ecology and evolution…
On May 17, 1995 I was born. My entire life I was raised in Washington. My home town is a very small town with a population of 3,000 people; it consists of 3 stoplights, 1 grocery store, one grade school and one high school. It is also considered a “speed trap”; this is because a lot of people get pulled over while speeding through.
Both of my parents are very busy people! They work all of the time to provide and give everything to their three daughters. My oldest sister and I…
An Introduction to Psychology
Definition: Study of the feelings, behaviour, and thought processes of an individual, and the way in which the individual acts & reacts to other humans and society
The brain is what is physically in the skull, while the mind refers to the mental processes that take place within the brain.
What is the mind?
What is the mind’s relation to the brain?
How do we study the mind if we cannot see it?
What role does biology (nature) & environment (nurture) play…
Production of CO2
Marisol and I did 3different trials. The 1st trial we put 10 drops of bromothyml blue indicator without exercising. It took 15 seconds to change to a clear color. The 2nd trial we put 15 drops of bromothyml blue indicator and Marisol did 20 jumping jacks. The liquid took 10 seconds to change to a lime green color. The 3rd trial was the same as the 2nd just that Marisol did 10 jumping jacks and the liquid took 13 seconds…