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
n200080 [17]
3 years ago
9

In the lab, you are given a plant sample and asked to determine the type of plant tissue. After looking in the microscope, you h

ave a hypothesis and to test it you apply iodine to the sample. Areas of the sample turn a very blue-black. Based on this analysis, you determine that:_______.
Biology
1 answer:
Molodets [167]3 years ago
3 0

Answer:

the sample contains starch and starch is stored in ground tissue.

Explanation:

It should be understood that Iodine solution is used to test leaves for the presence of starch. This will show a blue-black color, which means the presence of starch.

This process can simply be demonstrated by simply following these steps.

* Take two potted plants of the same kind.

* Keep one in the dark (or in a black box) for 72 hours and the other in the sunlight.

* Take one leaf from each of the plants.

* Put few drops of iodine solution on each of the leaves.

* The leaf kept in the sunlight will turn blue-black due to presence of starch.

* The leaf kept in the dark will not turn blue-black because of absence of starch.

In conclusion, the iodine is used to test for starch.

You might be interested in
The ocean is maintaining a constant salinity because:
11Alexandr11 [23.1K]
In mid-ocean ridge areas, ocean water is cycled through the crust because of the high heat flow in the area. Water in the rock is heated over the magmas, rising up and drawing in cold water from the sides. This process is occurring all over the world, and is the primary means for maintaining ocean salinity in a relatively constant range over the long term, as elements in the sea water when it is heated react with the rocks. There is so much water flow, cumulatively over the entire world, that this process basically buffers ocean chemistry.

Obviously large increases or decreases in salinity can and do occur in isolated basins that do not have free exchange with the open oceans.
8 0
4 years ago
What is the passing of genetic information from one generation to the next?
Bad White [126]
Heredity is the passage of genetic information from one generation to another. For offspring to inherit traitsthere must be a reliable mechanism for transferring genetic information from one generation to the next.
3 0
3 years ago
Read 2 more answers
What is the result of a chromosome condensing
yanalaym [24]
It explodes and disappears
8 0
3 years ago
3.What is the difference between a dominant and a recessive trait?
Andreyy89

Answer:

Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.

Explanation:

6 0
3 years ago
Hakeem is testing the effects of sunlight on samples of soil. Which of these actions would introduce confounding variables into
satela [25.4K]

A confounding variable refers to an external effect, which modifies the influence of an independent and dependent variable. This extraneous effect is used to affect the outcome of an experimental design. The confounding variables can ruin the experiment and can generate unnecessary outcomes.  

In the given case, confounding variables can be introduced by testing multiple hypotheses at a time and by using distinct kinds of soil in each of the samples.  


7 0
3 years ago
Read 2 more answers
Other questions:
  • When an organism breaks down organic molecules, some of the energy that had been stored as chemical energy is lost as heat. this
    8·1 answer
  • Identify two ways in which you
    8·2 answers
  • If plants disappeared how long would oxygen last
    13·1 answer
  • Some protozoa have cell structures that are formed as temporary extensions of the cell membrane, allowing the cell to detect and
    13·1 answer
  • What do you think would happen if there was more glucose (sugar) than available NAD+? Explain.
    8·1 answer
  • What are 3 characteristics for evaporation
    5·1 answer
  • Which picture below is showing DNA polymerase making more DNA
    12·1 answer
  • Differentiate between macro and micro farm animals ​
    8·1 answer
  • Which rock is usually composed of several different minerals
    7·1 answer
  • Hello, I don't mean much, but what are the signs and symptoms of cholera?????
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!