1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tigry1 [53]
4 years ago
5

Q#5- How do you know when a test is positive for glucose and starch?

Biology
1 answer:
fgiga [73]4 years ago
3 0

You will know a test is positive for glucose and starch when Benedict's reagent will give a positive test result for glucose but not for starch.

Explanation:

  • Benedict's Test is used to test for simple carbohydrates. The Benedict's test identifies reducing sugars which have free ketone or aldehyde functional groups.
  • Food scientists can test for starch in food using iodine solution. If starch is present, the iodine will turn dark blue. Testing for sugar can be performed with Benedict's solution.
  • The Benedict's solution is added to the sample, and heated for five minutes.
  • The test involves heating a solution of the sugar to be tested with Benedict's reagent and observing the colour change of blue to orange. Benedict's reagent will give a positive test result for glucose but not for starch.
  • Benedict's solution can be used to test for the presence of glucose in urine
You might be interested in
Describe how an invasive species can be introduced into an ecosystem by humans. Name a specific situation and species and how it
oksano4ka [1.4K]

Answer:

Explanation:

Invasive species are animals or plants from another region of the world that don’t belong in their new environment. They can be introduced to an area by ship ballast water, accidental release, and most often, by people. Invasive species can lead to the extinction of native plants and animals, destroy biodiversity, and permanently alter habitats.

4 0
3 years ago
Read 2 more answers
Why does the muscular system work will with the nervous system?
svlad2 [7]
<span>The skeletal system also protects internal organs and produces blood cells. Bones provide calcium that is essential for the proper functioning of the nervous system. ... Sensory receptors in joints between bones send signals about body position to the brain. The brain regulates the position of bones by controlling muscles.</span>
4 0
4 years ago
According to the energy pyramid, the
Viefleur [7K]
C .. please give thanks
8 0
3 years ago
Read 2 more answers
What is the most significant difference in current weather forecasting methods compared to what was done in the past?
masha68 [24]

Answer:

more accurate computer based weather models

Explanation:

this help gather more information and i took the exam

7 0
3 years ago
Read 2 more answers
How are the products of photosynthesis useful to the plant itself
blsea [12.9K]
Because, it is the process by which they make or produce their food with the help of sunlight, water and carbon dioxide.

If photsynthesis is not there then there would be no production of food and ultimatley plants will die.
3 0
3 years ago
Other questions:
  • Many non-living things have some of the
    5·1 answer
  • When an object is burning, two atoms of oxygen (in the air) combine with one atom of carbon (from the
    9·1 answer
  • Input standards is a control process that measures work effort rather than work results. true or false
    6·1 answer
  • Which is a compound?<br> water<br><br> iodine<br><br> air<br><br> calcium
    15·2 answers
  • Imagine the grasshoppers population was gone. What would happen to the black and white bird population?​
    9·1 answer
  • Define a biological community. explain why the study of community ecology is important
    13·1 answer
  • WILL MARK BRAINLIEST
    13·2 answers
  • Whats does NBT stands for​
    12·1 answer
  • What is biology of brown rat?
    14·1 answer
  • Is bacteria that perform chemosynthesis a primary producers or consumers?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!