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
Minchanka [31]
3 years ago
6

Consider an experiment in which starch is dissolved in a liter of water. Some of the solution is placed into a securely tied dia

lysis bag. The dialysis bag is placed into a beaker containing distilled water and iodine for 30 minutes. What are the correct answers for the questions below? (Note: Iodine reacts with starch to create a black/purple color.)
What would happen to the color of the solution in the bag?
a. The solution in the bag would turn purple as the iodine reacts with the starch.
b. The solution in the bag would grow lighter as the starch leaves the bag and enters distilled water and iodine.

Would there be a color change in the water-iodine solution?
a. The water iodine solution has no color change.
b. The water iodine solution turns purple.

How do substances enter or leave the dialysis bag?
a. The dialysis bag is permeable to iodine so it can move into the bag but is not permeable to starch.
b. There is a leak in the bag allowing starch to flow out.

How would the mass of the bag change after a few hours?
a. The mass of the bag would be lighter as starch leaks out.
b. After several hours, the mass of the bag should increase as water moves by osmosis from the lower concentration outside the bag to the higher concentration (hypertonic solution).
Biology
1 answer:
disa [49]3 years ago
5 0

Answer:

yes i need this tooo

Explanation:

You might be interested in
Diabetic ketoacidosis (dka) in a client with type 1 diabetes occurs when the lack of insulin leads to the release of which physi
masha68 [24]

The answer to the above question is Fatty acids.

<h3>What are Fatty acids?</h3>

A fatty acid is a carboxylic acid with an aliphatic chain that is either saturated or unsaturated. This definition applies to chemistry, particularly biochemistry. The majority of naturally occurring fatty acids have an unbranched chain with 4 to 28 carbon atoms, which is an even number. In some species, like microalgae, fatty acids make up a significant portion of the lipids (up to 70% by weight), but in other organisms, they are present as one of the three main types of esters: triglycerides, phospholipids, or cholesteryl esters rather than in their solo form. Fatty acids are crucial nutritional sources of energy for animals in any of these forms, as well as crucial cellular building blocks.

To learn more about Fatty acids with the help of given link:

brainly.com/question/26353151

#SPJ4

6 0
1 year ago
Please needed as soon as Possible thank you!
kramer

Answer:

The answer is B. Stratum Basale

5 0
2 years ago
In humans, honey-colored eyes (A) dominate blue (aa). If Zygosity honey-colored male had a baby with blue-eyed female. 1)Determi
Vikentia [17]

Answer:

Explanation:

Honey-colored eyes A is dominant over blue-colored eyes a.

A homzygous honey-colored male (AA) had a baby with blue-eyed female (aa).

                           AA    x    aa

Offspring         Aa   Aa   Aa   Aa

1. Since A is dominant over a, <u>all the expected offspring would have honey-color eyes with Aa genotype.</u>

2. The genotype of the homzygous honey-color eyes father would be AA while that of the blue-eye mother would be aa.

7 0
2 years ago
What body system contains a structure that can expand to hold more waste products A. Urinary System B. Endocrine System C. Respi
miv72 [106K]

Answer:

A. Urinary system its the one system that holds waste

Explanation:

3 0
3 years ago
Read 2 more answers
What is a phospholipid
Fiesta28 [93]

Phospholipid: a lipid containing a phosphate group in its molecule, e.g., lecithin.

8 0
2 years ago
Read 2 more answers
Other questions:
  • Kari bought 3 boxes of cookies to share with a book club. Each box contains 12 cookies. The expression mr023-1.jpg represents th
    5·2 answers
  • Hydroelectric power does not require moving water as dams hold water back.
    8·2 answers
  • Which color of light is absorbed the most by chlorophyll a? what percentage is absorbed? what percentage is reflected??
    5·1 answer
  • Which would likely live in the Great Salt Lake?
    7·2 answers
  • Select the correct answer. PLZ HELP 11+points
    8·1 answer
  • This is the result of uncontrolled cell division. Often caused by mutations. Mutations may be caused by environmental factors su
    6·2 answers
  • What is the plural of drive-in? Use a dictionary if necessary.
    11·1 answer
  • Explain what fermentation is
    14·1 answer
  • Abnormally slow depolarization of the ventricles would most change the shape of the ________ in an ECG tracing. Group of answer
    10·1 answer
  • Eukaryotes that reproduce through reproduction require two cells to contribute genetic material for the production of the next g
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!