User Account

All Pages

Determine the presence of sugar

Assignment Help Biology
Reference no: EM131711023

In this experiment, you will perform a series of tests to determine the presence of sugar, starch, lipids, and proteins for a variety of samples and determine the identity of an unknown.

Learning Objectives

Upon completion of this laboratory, you will be able to:
- Define protein, carbohydrate, lipid, and nucleic acid.
- Define a dehydration reaction and relate this reaction to the structure of a macromolecule.
- Describe the essential and nonessential amino acids that make up proteins.
- Compare and contrast simple and complex carbohydrates and how they are utilized metabolically.
- Describe the nucleotides in both DNA and RNA.
- List reagents used to identify biological macromolecules.
- Perform qualitative tests to determine the presence of lipids, sugars, proteins, and starch in a variety of samples.
- Identify an unknown through its composition of macromolecules.

Exercise 1: Starch and Sugar

Questions:
A. In each of the two tests (starch and sugar) a positive and negative control was used. What was the positive control in each of the tests and what was the negative control? Explain your answers.
B. Did the Benedict's test for reducing sugars net a positive or negative result for milk? Research the sugar content of milk and the definition of a reducing sugar to explain if your result is what you would expect.
C. Based on your results, is sugar and/or starch present in your Unknown? Use your results to explain your answer.

Exercise 2: Proteins and Lipids

In this exercise you will test a variety of samples for the presence of proteins (dipeptide bonds) and lipids.

Questions

A. Review the Data Tables in Exercises 1 and 2. Compare the results of the Unknown for all tests to the results for the various known samples to determine the identity of the Unknown. Explain the identity of the Unknown using your experiment results in the exercises to help explain and support your answer.

B. Eggs are known to contain cholesterol, which is a lipid. Did your experiment results indicate a presence of lipids in the albumin solution? Think about this result and where cholesterol is present in eggs to explain how your results support or reject cholesterol in eggs. How could you test this? Explain the experiment that you would perform to test this.

Attachment:- Biological Macromolecules.rar

Reference no: EM131711023

Questions Cloud

Emergency fund for say three months living expenses : Why does the 401K not exactly take the place of an emergency fund -- especially say an emergency fund for say three months living expenses?
Discuss actions while evil refers to the concept of doing : Free will refers to the right of an individual to choose the course of their actions while evil refers to the concept of doing that which is considered wrong
How much of impact have sources of energy had on air quality : How much of an impact have these sources of energy had on local air and water quality? Does your community have nuclear waste to dispose of?
Discuss full potential and maximizing your humanity : This morality is about realizing your full potential and maximizing your humanity
Determine the presence of sugar : Perform a series of tests to determine the presence of sugar, starch, lipids, and proteins for a variety of samples and determine the identity of an unknown
Determine whether new deer has a dominant strategy : a. Determine whether New Deer has a dominant strategy. If so, what is New Deer's dominant strategy?
Data tracking and reporting weigh into this decision : How does data tracking and reporting weigh into this decision?
Develop a conceptual model for the given case : Develop a conceptual model for the following case. Once given, bonuses are extraordinarily hard to take away without undermining employee morale.
Wrote a new value into the Timer or Counter register : ECE 375: Computer Organization and Assembly Language Programming Lab - Timer/Counters. In this lab, you used the Fast PWM mode of both 8-bit Timer/Counters

Reviews

inf1711023

4/1/2018 5:05:10 AM

I must say you respond fast. thanks for Delivering my assignment way before the time. I also had difficulties with downloads but the expert was very understanding. Follows directions You wont find better. Thank you, thank you so much.

len1711023

11/8/2017 12:16:59 AM

Note: You may use a graphing program to create the charts or you may draw out and scan in as a pdf file. This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.

len1711023

11/8/2017 12:16:27 AM

Please complete the attached lab. When using references, please cite in the section the reference is used and include a FULL APA reference. Thank you!Hi all- Here is the rubric for the Week 3Individual Lab POINTS POSSIBLE POINTS EARNED Content +3.0 pt for Exercise 1 Each Table 0.6 Each Question Answer 0.6 +3.0 pt for Exercise 2 Each Table 0.75 Each Question Answer 0.75 Out of 6 Format and Citations +2pt for complete sentences and grammar, references, etc No References = ZERO on ENTIRE assignment Out of 2

Write a Review

Biology Questions & Answers

  Reuse or recycle as an attempt to reduce the e-waste

Discuss any two commonly used electronics and how to reuse or recycle as an attempt to reduce the E-waste.

  Explain an experiment to test the hypothesis

Explain an experiment to test this hypothesis. Be explicit about the methods you will use, the setting, the time that the experiment will last, and the variables you will measure.

  Define anterograde axoplasmic transport

Define anterograde axoplasmic transport. Explain why is this type of axonal transport necessary in most neurons? briefly explain molecules involved in facilitating anterograde transport.

  Draw a labeled diagram of the small section of the plasma

q1. draw a labeled diagram of a small section of the plasma membrane and briefly describe its structure and

  What are the cell processes

what are the cell processes? what do they do? what are the results?

  Separate divisions of plant kingdom

Liverworst and firn both are non-flowerings plants,yet they are classified under separate divisions of plant kingdom. Explain this with special reference to their vascular tissues,and differentiation of the plant body into stem,leaves and roots

  What type of solution is 10% dextrose to the cell

What type of solution is 10% dextrose to the cell? Assuming dextrose is a non penetrating solute, in which direction will net diffusion occur (into the cell; out of the cell; no movement?

  Define immunofluorescent staining vs immunoprecipitation

What are the advantages of using immunofluorescent staining vs. immunoprecipitation if you want to understand the co-localization

  Q a diploid cell contains three pairs of homologous

q. a diploid cell contains three pairs of homologous chromosomes designated c1 and c2 m1 and m2 and s1 and s2. no

  Escherichia coli can grow in glucose broth

Escherichia coli can grow in glucose broth both aerobically and anaerobically. When grown aerobically, these bacteria divide every 20 minutes. However, when grown anaerobically they require about 100 minutes to divide. What may account for thi..

  Why might a brightly colored dewlap on an anolis lizard

Why might a brightly colored dewlap on an Anolis lizard be a reliable signal of male quality?

  Describe differences in the structure of dna and rna

Describe three differences in the structure of DNA and RNA and List the sequence of events that takes place when a DNA message is translated into protein

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd