he scientific method has been used many times in the field of Human Biology.
1-4 Exercises are attached . + Test # DUE SUNDAY
- Exercise #4 Cell Structure
- Exercise #3 Chemical Aspects of Life
- Exercise #2 The Microscope
- Exercise #1 Scientific Method
Video to Exercise 1:
Video to Exercise 2:
Book for Lab work After agreement .
1. Exercise #1 Scientific Method
The scientific method has been used many times in the field of Human Biology. Many of the medications we use have been discovered through the scientific method. How does a Doctor know the specific antibiotic to give you? Because research has been done on the specific infection to see what treats the bug. l. Read pages 2 and 3 in the lab book. Also please print this instruction page of your lab exercise instructions so you will not have to go back and forth to read as you work on the exercise. 2.Read THE METHOD IN ACTION-A Medical Example page 3 and answer the six questions on page 3. (This is not to be turned in . Remember you turn in only the things asked under Assignment on the menu panel} 3. Read page 4 SCIENTIFIC MEASUREMENT and answer question 1,2,and 3. on page 5. 4. Read MEASUREMENT OF LENGTH answer question {1} and (2). You will need a ruler that has metrics and most rulers do. 5. Go to the link 1.08 and observe the flow chart on the scientific method. This link is above Assignment #1 and under the heading Exercise 1. 6.The answers to Assignment # 1 are in the lab book. Click on and complete assignment # 1. Remember to keep your answers for 1-5 assignments in one document. 7. You also have a required activity. Click on solve a problem, then read your instructions and post a reply. You may not repeat a problem. If there is a problem that you want to join as a group to further the research you may add to that post and then reply to another.
1. Exercise #2 The Microscope
The Microscope has opened a whole new world to mankind. Now we use it to solve and treat some of the more serious problems in medicine. It can also be use for fun to explore and see the amazing world or nature. l.Label the microscope picture on page 10 of the lab book. Hints- The coarse adjustment knob is the larger black knob. Body tube is the top right label. Arm is the fourth left label. 2. Go over the following definitions on page 11, Magnification, field of view and on page 12 go over depth of focus and working distance. 3. The stereomicroscopes are used to view thick , opaque objects. 4.Read other types of Microscopes pages 14 and 15. 5. Do question # 14 Page 20. 6. Complete assignment # 2 and make sure to keep your answsers for the document. You will look at several differnt photos taken under a microscope and you will get to pratice using a online video on a microscope. 7. Under assignment # 2 there are three pictures to view : body cells, electron microscope of a cell and Yeast(makes bread rise!). The fourth item is the video of the microscope. Click on Microscope video then scroll down to and click on these words in purple -The Virtual Scope-enjoy learning to focus!
1. Exercise #3 Chemical Aspects of Life
The chemistry of life is a very important subject. We are made of millions of chemicals. We also depend on chemicals every day. Some of them are; Oxygen for breathing, carbohydrates , fats and protein for food, salt(NACl) for nerves, Calcium(Ca) for bones and muscles, iron for our blood to carry oxygen, and on and on. In this exercise we will explore what makes up the food that we eat. 1.Read compounds page 22. 2. On page 22 Read the test for organic and inorganic compounds.I will tell you which deposits turn black when heated. In your lab book record whether they are organic or inorganic. sugar and meat turn black 3. Read reducing sugars on page 24. In the presence of Benedicts reagent a reducing sugar (simple sugar} turns brick red. This is a positive result. On page 25 I will tell you the observation for Table 3.1 then you record positive or negative. #2,3,4,6,9, turned brick red 4. Read starch page 23 . Iodine in the presence of starch turns the starch blue black.On page 24 I will tell you the observation for Table 3.2 and then you record positive or negative. Blue black is a positive result. #1,5,6,7 turned blue black 5. Read page 25 proteins. Biuret turns protein violet. On pate 17 table 3.3 I will give you the observation . Violet is positive. You record positive or negative. #3,4,5 and 6 turned violet. 6.Click on Modern versus Ancient. This gives us an idea of how our diets have changed from some of the ancient civilizaions. 7.The answers to assignment # 3 are in your lab book. Complete assignment # 3. Remember to keep it in a document with those assignments due at midterm.
1. Exercise #4 Cell Structure
The basic unit of structure and function of an organism is the cell. There are plants and animal cells. Each cell has the structures to function. Some cells function alone like an ameba. Other cells are part of an organ, like heart and stomach cells. When you learn how one cell looks , other may look different but they all have the same parts. l. Read Introduction on Eukaryotic cellsExercise 4 p. 30. Below are pictures that show the following pictures that are items on the following pages. On p. 30 Elodea, p. 31 onion cells, p. 31 potato, p. 32 human cheek cells and p. 32human blood. Some of the images are labeled.In the onion just look at the different cells. (you do not need the labels) (poatato=potato). The label leucocytes =human blood. 2.Go over the table on pate 33 , table 4.1 You are responsible for the organelles and their function. 3. Complete assignment # 4 . The answers are found in Exercise 4 of the lab book.
