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
alina1380 [7]
3 years ago
15

How would you test the presence of starch in leaves?

Biology
1 answer:
Lesechka [4]3 years ago
4 0

Answer:

1. Remove a green leaf from the plant

2. Boil the leaf in boiling <u>water stop enzymatic reaction within cells in leaf</u>

3. Put the boiled leaf in boiling tube containing alcohol <u>extract (ethanol) chlorophyll ethanol dissolves Lipids in cell membranes.</u>

4. Return to leave to the hot water <u>soften the leaf and allows penetration of </u><u> </u><u>i</u><u>odine</u>

5. Remove leaf and perform the iodine test

Explanation:

<em>starch is white powdery substance consisting of glucose which is used by plants as food the percents of starch in leaves evidence enough of the process a photosynthesis being carried out in leaves as the formation of starch necessitates photosynthesis</em>.

I hope this helps :)

You might be interested in
hey um what is all of the sells my mum said if i get it right by the time she gets back i get 50 dollars
Hoochie [10]

Answer:

Explanation:

what are you talking about?

5 0
3 years ago
Read 2 more answers
In food production, what is used to<br>(a)<br>regulate the growth and ripening of fruits​
dem82 [27]

Answer: Ethylene Gas

Explanation: Ethylene Gas Can be Used to Regulate Fruit Ripening Ethylene is a gas and is known as the “fruit-ripening hormone.”

5 0
3 years ago
A population of rodents settles on the shore of an island close to the Arctic Circle. The landscape consists mainly of rocks. If
rjkz [21]

Answer:

most likely disruptive selection

Explanation:

pretty sure they will reproduce to make slightly bigger offspring that can hide in rocks and stay warm

6 0
3 years ago
Bile from the liver and digestive juices from the pancreas enter which section of the small intestine?
Rina8888 [55]
Is there options that I can shoes from
5 0
3 years ago
Write 8 examples on possible hazard in raising four-legged animals and fish​
dedylja [7]

Answer: The below are following hazards of four-legged animals and fish.

Explanation:

The four legged animals like cats, dogs, horse, and others need proper shelter, food, and care to survive.

They need to be taken outdoors for excretion, and walk.

The mating period is not fix and not easily done.

The four like fishes like turtle and squid are difficult to be handled in aquarium.

The four legged fishes do not come in fishing net during aquarium cleaning.

There are chances of being biten by four legged animals and their associated diseases like rabies.

These animals can lick the food we eat and contaminate the food.

The animal feces may produce air pollution.

The animal noise like dog bark can cause noise pollution.  Thus can lead to problem of hypertension.

3 0
2 years ago
Other questions:
  • How do you impact your ecosystem?
    5·1 answer
  • Three ways to transfer heat are by _____. radiation, conduction, and convection evaporation, condensation, and precipitation tra
    10·2 answers
  • HELP WITH THIS QUESTION PLEASE!! Thank you so much
    7·2 answers
  • Which sentence about protists is accurate
    11·1 answer
  • According to research presented in the text, one of the most important environmental stimuli for premature babies is:
    9·1 answer
  • What hormone(s) do the Testes produce?
    10·1 answer
  • Which of the following are decomposers
    11·2 answers
  • true or false: hypotonic solutions facilitate turgor pressure of plant cells. turgor pressure is an ideal state for plant cells
    10·2 answers
  • 4. Explain why the cave appears black.
    10·1 answer
  • A person who is dehydrated has a lower than normal amount of water in their blood but has the same amount of formed elements. Th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!