Pearson, as an active contributor to the biology learning community, is pleased to provide free access to the Classic edition of The Biology Place to all educators and their students.
The purpose of the activities is to help you review material you have already studied in class or have read in your text. Some of the material will extend your knowledge beyond your classwork or textbook reading. At the end of each activity, you can assess your progress through a Self-Quiz.
To begin, click on an activity title.
Lab 2 Enzyme Catalysis
Mitosis and Meiosis
Plant Pigments and Photosynthesis
6-I Bacterial Transformation
6-II DNA Electrophoresis
Genetics of Organisms
Population Genetics and Evolution
10-I Cardiovascular Fitness
10-II Heart Rate in Daphnia
Biomembranes I: Membrane Structure and Transport
Biomembranes II: Membrane Dynamics and Communication
Cardiovascular System I: The Beating Heart
Cardiovascular System II: The Vascular Highway
Cell Structure and Function
DNA Structure and Replication
From Gene to Protein: Transcription
From Gene to Protein: Translation (Protein Synthesis)
Plant Structure and Growth
Properties of Biomolecules
Restriction Enzyme Digestion of DNA
The lac Operon in E. coli
Key Concepts II: Temperature and Metabolic Activity
In the Cellular Respiration laboratory, you experimented with peas and saw how the rate of oxygen consumption during cellular respiration varied with temperature. In that lab, you experimented with peas to see how the rate of oxygen consumption during cellular respiration increased with temperature.
In animals, an increase in cellular respiration triggers homeostatic mechanisms that increase both breathing and heart rate, resulting in more oxygen being available to cells.
In the second part of this lab, you will study the relationship between temperature and metabolic activity in an ectothermic animal. An ectotherm is an animal whose body temperature is much the same as its surroundings, such as a frog, a cricket, or a snake.
To learn more about how ectothermic behavior relates to temperature, take a side trip to Thermoregulation.