BI101 Unit 1 Homework Assignment
ALL INSTRUCTIONS AND GRADING RUBRIC ARE POSTED HERE
Complete the following and submit the Word document by midnight Sunday. Remember to include complete citations for all sources used to answer each question.
Complete the table below, illustrating how these properties of water above are related to the phenomena listed below. More than one property may be used to explain a given phenomenon. You also need to explain how each property is responsible for each phenomenon.
(e.g., A, B, C…)
|During the winter, air temperatures in the northern United States can remain below 0°C for months; however, the fish and other animals living in the lakes survive.||[[[[[[[||[[[[[[[|
|Many substances, for example, salt (NaCl) and sucrose, dissolve quickly in water.||[[[[[[||[[[[[|
|When you pour water into a 50-ml graduated cylinder, a meniscus forms at the top of the water column.||[[[[[||[[[[[|
|Sweating and the evaporation of sweat from the body surface help reduce a human’s body temperature.||[[[[[||[[[[[|
|Water drops that fall on a surface tend to form rounded drops or beads.||[[[[[[||[[[[[[|
|If you touch the edge of a paper towel to a drop of colored water, the water will move up into (or be absorbed by) the towel.||[[[[[[||[[[[[[|
3. In agricultural areas, farmers pay close attention to the weather forecast. Right before a predicted overnight freeze, farmers spray water on crops to protect the plants. Use the properties of water to explain how this works. Be sure to mention why hydrogen bonds are responsible for this phenomenon.
4. The following are pH values: cola-2; orange juice-3; beer-4; coffee-5; human blood-7.4. Which of these liquids has the highest concentration of OH-?
5. List the four major classes or groups of biologically important macromolecules and explain one reason for the importance of each.
6. Explain what denaturing of a protein is and what conditions might cause it.
7. Describe three differences between DNA and RNA.
The following Grading Rubric will be used to score your homework:
|1||Correctly describes the three chemical bonds explained and provides a good example of each.||0-6|
|2||Applies the properties of water to the various scenarios correctly.||0-6|
|3||Explains how water’s bonds work to protect crops from freezing.||0-2|
|4||Demonstrates an understanding of pH.||0-2|
|5||Clearly identifies the four important biological macromolecules and a reason for their importance.||0-4|
|6||Describes denaturation and its causes.||0-2|
|7||Identifies the three major differences between DNA and RNA.||0-3|
101papers.com is always working towards customer satisfaction. Our professional academic writers always aim at producing comprehensive papers that possess quality and originality at pocket-friendly prices. Students are assured that all their private information is safe with us.
101papers.com provides a system where students can request for money-back in case they cancel the order or in the rare instances of dissatisfaction. The refund policy adheres to the company’s term and conditions on money-back.Read more
While providing the best professional essay writing services, we guarantee all our students of plagiarism-free papers. All papers produced by our professional academic writers are checked against all web resources and previously completed papers to avoid plagiarism.Read more
In our urge to provide the best professional essay writing services, we guarantee students of free revision policy. The free revision policy is a courtesy service where students can request for unlimited for their completed papers. We always aim at achieving 100% customer satisfaction rates. The free revision policy is one among many of our major advantages.Read more
At 101papers.com, every student is entitled to total security. Our professional academic writers are always committed to protecting all private information of our customers. We do not share any personal information with third parties. Additionally, we provide safe systems for all online transactions.Read more
Working with us is the greatest step towards achieving all your academic goals. We always deliver the best professional essay writing services as promised. We, therefore, expect all students to work cooperatively with us, as we work towards achieving our goal, your satisfaction. This way, all services will be delivered accurately and on time.Read more