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
Artemon [7]
3 years ago
5

(c)Why was no starch found in:(i)the part of the leaf labelled A................................................................

......................................................................................................................................................................................(1)(ii)the part of the leaf labelled B?......................................................................................................................................................................................................................................................(1)(Total 7 marks)Q3.A plant with variegated (two-coloured) leaves was left in sunlight for several hours. Pieces of one of its leaves were then detached (removed) and tested for sugar. The diagram below shows the results.Explain, as fully as you can, why the yellow region of the leaf had not produced sugar
Biology
1 answer:
satela [25.4K]3 years ago
6 0

Answer:

During photosynthesis a plant absorbs light energy using the pigment chlorophyll. This allows it to convert carbon dioxide and water into glucose. This glucose is:

transported to the growing parts of the plant for use in respiration

transformed into cellulose, proteins and oils

turned into starch for storage

Therefore, to test if a plant has been photosynthesising, you can test the leaf to see if starch is present.

You might be interested in
Match the following terms and definitions.
Marina86 [1]
Cocci.....round
bacillus rod shaped 
spirilla ..... spiral shaped . These are all different shapes of bacterial cell.
5 0
3 years ago
Read 2 more answers
Mechanism of photosynthesis
Mademuasel [1]

Answer:

light reaction and dark reaction.

6 0
3 years ago
Which of these is the most important reason to reduce demand for renewable resources?
jok3333 [9.3K]

To allow resources to be replenished naturally is the most important reason to reduce demand for renewable resources.

  • The term "renewable resources" refers to natural resources that are replenished by nature.
  • These are resources that can be used indefinitely and are replenished naturally, such as sunlight, water, and air, among others.
  • Natural resource exploitation and consumption harm the ecosystem and cause pollution.
  • Utilizing less natural resources, such as wood and fossil fuels, will safeguard both environmental and human health.
  • A natural resource that can be replenished to replace the portion used up by usage and consumption is known as a renewable resource, also known as a flow resource.
  • This replenishment can occur naturally through reproduction or through other recurring processes in a limited amount of time on a human time scale.

learn more about renewable resources here: brainly.com/question/13203971

#SPJ1

8 0
2 years ago
Describe how finches of the Galapagos Islands adapted over time.
konstantin123 [22]

Answer:

Darwin observed the Galapagos finches had a graded series of beak sizes and shapes and predicted these species were modified from one original mainland species.

Darwin called differences among species natural selection, which is caused by the inheritance of traits, competition between individuals, and the variation of traits.

Offspring with inherited characteristics that allow them to best compete will survive and have more offspring than those individuals with variations that are less able to compete.

Large-billed finches feed more efficiently on large, hard seeds, whereas smaller billed finches feed more efficiently on small, soft seeds.

When small, soft seeds become rare, large-billed finches will survive better, and there will be more larger-billed birds in the following generation; when large, hard seeds become rare, the opposite will occur.

8 0
3 years ago
How much fossil fuel is used in your home? Also, make recommendations about how to reduce your usage.
nikdorinn [45]

Answer:

To reduce the amout you can go all solar powered to power your house. Fossil fuel is used to make heat. But now days most homes in the United States Of America use solar power or get electricity from wind mills.

3 0
2 years ago
Other questions:
  • Golgi apparatus non examples
    15·1 answer
  • A __________ is an individual which has a heterozygous genotype. queen victoria was one since she was heterozygous with the rece
    6·1 answer
  • A line connecting a vertex of a scalene triangle with the midpoint of the opposite side is the
    14·2 answers
  • What is the main use of fresh water worldwide
    9·2 answers
  • Dr. Smith reads two research papers that present different conclusions about the same question. He knows the researcher who wrot
    10·2 answers
  • The digestion of pizza, the light reactions in photosynthesis, and the removal of a stain by laundry detergent all require _____
    15·1 answer
  • Imagine that you are using a microscope. Your high power objective 40x and your eyepiece is 15x. What is your total magnificatio
    12·2 answers
  • Which of the following is not a characteristic of all living things
    11·2 answers
  • Which adaptation do organisms need to live in an estuary?
    7·1 answer
  • Earth science pleas help...............
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!