Biology is the study of life science. Branches of biology include anatomy, biotechnology, botany, cell biology, ecology, inheritance, medicine, microbiology, molecular biology, and zoology. Many people entering in the field of biology and are becoming expert in a particular area. High school biology courses offer an introduction to many topics in the life sciences. Students will learn about life starting at the cellular level.
Other topics covered include ecology with importance on fungi and plants, animal physiology and anatomy and population dynamics. Students learn scientific methods through a variety of experiments. Biology is a division of science elemental in a student’s education. In the high school science classroom, experiments are an essential part of the learning process.
Biology encompasses four Main themes:
1. The process of evolution drives the diversity and unity of life.
2. Biological systems use free energy to grow, reproduce, and maintain life functions.
3. Living systems store information essential to life processes.
4. Biological systems relate with each other, and those connections have complex properties.
Effects of Temperature on Cell Respiration
Cell respiration is a series of enzyme catalyzed reactions in which carbohydrates, proteins, and fats are broken down to carbon dioxide and water with the release of energy. During this process, hydrogen is removed from the fuel molecules and oxygen is addicted. The students can measure oxygen consumption and hydrogen freedom in germinating barley at different temperatures. The program provides eight calibrated respiro meters for measurement of oxygen consumption and the chemicals required to perform a graphic dye reduction test.
Extraction and Analysis of an Enzyme from Wheat
Acid phosphatise is present in many plant tissues it catalyzes the removal of phosphate groups from macro molecules at low phi. In this exercise, students prepare a cell-free extract from wheat germ and determine the amount of the enzyme present in the extract. The experiment offers practical experience with enzyme extraction procedures and is an excellent introduction to the analysis of enzyme activity and basic enzyme kinetics.
Classification has been the most used experimental technique while learning about animal and human composition and physiology. Many schools choose to analyze a frog. Dissection helps students learn about the organs, their structure and the relationships among them. After learning the general anatomy, organs such as a sheep’s heart or lung, may be dissected to learn the internal workings of the organ. For those different to performing vivisection which is the act of operating on a living animal, virtual dissection kits are available.
To show that the process of photosynthesis you will need a water plant, a vessel, a clear funnel and a test tube. Dip the water plant under water in the vessel and cover with the funnel. Put a test tube on top of the funnel making sure there are no attentive air bubbles in the test tube. Description the plant to sunlight and then observe as bubbles gather in the test tube.
An easy and cheap biology experiment would be a test to find the best bread storage. Place slices from the same hang out in different conditions such as in a sealed bag, in a bag closed with a twist tie, in dark environments, in direct sunlight or in the freezer. In the days analyze the state of the bread to determine which method staves off mould the longest. A variation on this experiment would be to test different types of breads in one chosen storage condition to see which bread fares best. The student would then develop a theory based on the research.
In this project students go around the campus or their own neighborhoods to find four different types of soil. This could be sand, clay, mud near a body of water or loose dirt in a wooded area. Label each sample and place in a sealed jar. Check the samples daily or weekly for changes in the micro-organisms. Study these organisms under a microscope, keeping illustrations in a project log. Make note of any changes. The students can determine the type of soil favorable to planting, or the plant types that would increase best in each environment.