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
Sliva [168]
3 years ago
9

Quick help plz ......The presence of starch in leaf is tested using​

Biology
2 answers:
Vera_Pavlovna [14]3 years ago
6 0

Answer:

Hey!

Your answer is The presence of starch in leaves is testing with the Iodine test!

Explanation:

The presence of starch in the leaf would be represented by the blue / black tint of the Iodine when put on the sample...

Iodine solution is used to test leaves for the presence of starch...heat a plant leaf in boiling water for 30 seconds...

Check that it is soft before removing it out of the beaker...

Spread on a WHITE tile...

And now place a few drops of Iodine onto the leaf...

*if it turns dark (blue/black), STARCH IS PRESENT*

*no real change in colour means there is not starch present!*

HOPE THIS HELPS!!

XD

laila [671]3 years ago
5 0

Answer:

The presence of starch in leaves is testing with the Iodine test.

Explanation:

First, chlorophyll is removed from the leaf by boiling it in alcohol.

Then, two drops of iodine solution are put onto the leaf.

If the colour changes to blue, it indicates the presence of starch.

If it does not, there is no starch.

I hope this helps!

-Bella

<em>BrainlyBluebell</em>

You might be interested in
You have a cup of beans in front of you with 20 white beans and 20 red beans. These beans represent the alleles for a simple Men
Marta_Voda [28]

Answer:

Dominant: 20, Recessive: 20

Explanation:

The case shown in the question above explores simple Mendelian traits, since it shows a population where individuals of the same species present the dominant allele (R- red) and the recessive allele (r- white). We can project, then, that this population has an allele balance, where it is possible to find 20 red beans, which have the dominant allele and 20 white beans, which present the recessive allele.

4 0
4 years ago
Some examples of how animals interact with each other in their environment?
lukranit [14]

Answer:

Species interaction- competition, predation, parasitism, mutualism, and commensalism.

7 0
3 years ago
What are antibiotics and when can they not be used
miv72 [106K]

Answer:

An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. They may either kill or inhibit the growth of bacteria. Antibiotics DO NOT work on viruses, such as those that cause: Colds and runny noses, even if the mucus is thick, yellow, or green. Most sore throats (except strep throat) Flu.

3 0
3 years ago
Read 2 more answers
There are several different kinds of aquatic ecosystems. Bogs get their water from precipitation, so they don't have many Fill i
Ratling [72]
  1. Bogs get their water from precipitation, so they don't have many <u>nutrients</u>.
  2. Marsh plants are adapted to waterlogged <u>soil</u>
  3. Swamps have <u>plants like trees and shrubs</u>.
  4. Rivers always have flowing currents and pick up <u>sediment</u> as they flow.
  5. Lakes are bodies of water on land.  
  6. Wetlands act as filters for nutrients and pollutants dissolved in the water.
  7. Estuaries are wetland regions where freshwater rivers mix with ocean water.

Explanation:

A wetland is a biome which has both water and land that are intermixed in various ways. According to the type of the wetland, the ecosystem differs.

Bogs: Wetland with water from precipitation and no inflow or outflow of surface or ground water.  

Soil: Acidic, infertile with less nutrient content

Vegetation: Acid-loving plants

Swamps: Forest wetlands near rivers and lakes.

Soil: well draining, mineral soil

Vegetation: Trees and bushes. Swamps are classified according to the vegetation, like coniferous swamp, hardwood swamp, shrub swamp etc

Marsh: Wetlands mostly inundated with water leading to waterlogged soil  

Soil: Organic and mineral soil

Vegetation: Hydrophytic plants adapted to waterlogged soil

Estuaries: Wetland regions enclosed by land one side where fresh water mixes with saline ocean water.  

Soil: Saline alkaline soil

Vegetation: Mangrove trees

Rivers and lakes are water bodies that form a part of wetlands.  

Rivers are flowing water bodies which flows through water current and picks up sediments as it flows.

Lakes are stationary water bodies that are enclosed by land mass on all its sides.

The wetlands act as a natural filter and receive all the sediments, pollutants etc which are dissolved in water and carried by the rivers and other water sources.

4 0
3 years ago
Read 2 more answers
Which characteristic makes fungi similar to plants?
beks73 [17]

<span>The answer is D. Both fungi and plants can grow in soil.</span>

<span>
Through the process of elimination:
- Plants are autotrophic organisms while fungi are heterotrophic organisms.
- Plants have vascular tissue, and fungi don't.
- Fungi are the only organisms that have cell walls made of chitin.
Therefore, the correct choice is that both fungi and plants can grow in soil.</span>

6 0
3 years ago
Read 2 more answers
Other questions:
  • The bones of the vertebral column form a cavity called the
    6·1 answer
  • Take a break from work and stress and tell me how your day is going! I wanna know :)
    7·2 answers
  • Why soils in different locations around the world have different properties
    5·1 answer
  • Please help<br> It's do tomorrow
    12·2 answers
  • Multicellular organisms reproduce by binary fission<br><br> A. True<br> B. False
    12·1 answer
  • Would extrusive or intrusive igneous rocks have the largest crystals? Why
    11·1 answer
  • Which phase best describes how scientists use the data they collect
    5·1 answer
  • PLZ EXPLAIN, AND I NEED HELP NOW!
    12·2 answers
  • PLEASE HELP 50 POINTS
    8·2 answers
  • Individuals, as well as industry—and automobile manufacturers in particular have an obligation to work to reduce carbon dioxide
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!