English

How is Carbon Dioxide Removed from the Atmosphere? Explain.

Advertisements
Advertisements

Question

How is carbon dioxide removed from the atmosphere? Explain.
Short/Brief Note
Advertisements

Solution

Carbon dioxide is removed from the atmosphere by:
(i) Producers - Producers or green plants use carbon dioxide through photosynthesis. A small amount of carbon dioxide is used by chemosynthetic bacteria also.
(ii) Marine Organisms - Some amount of carbon dioxide is directly fixed by a few marine organisms and sea water absorbs carbon dioxide in the form of dissolved carbon dioxide, carbonic acid, carbonate and bicarbonates.

shaalaa.com
  Is there an error in this question or solution?
Chapter 6: Photosynthesis - Exercise 3 [Page 76]

APPEARS IN

Frank Biology II [English] Class 7 ICSE
Chapter 6 Photosynthesis
Exercise 3 | Q 11 | Page 76

RELATED QUESTIONS

Two healthy green plants were placed in the dark for 24 hours. They were then set up, as shown in the figure, for 4 hours. Then a leaf was taken from each plant and
the chlorophyll was removed from the leaves:
( i) What is the next and final step in this experiment?
( ii ) What would be the results of the final step?
( iii ) Why was it necessary to grease the glass sheet?
( iv ) What hypothesis is being tested in this experiment?


Mention one difference between the following on the basis of what is given in bracket.

Chlorophyll and chloroplast (part of plant cell)


The chemical substance used to test the presence of starch in the cell of a leaf is ______.


Are the following statement true or false? Give a reason in support of your answer.

Destarching of the leaves of a potted plant can occur only at night.


Photosynthesis in green plants is directly and indirectly dependent on so many plant structures.

Explain briefly the role of the following structures in this process Guard cells.


Photosynthesis in green plants is directly and indirectly dependent on so many plant structures. 

Explain briefly the role of the following structures in this process is Xylem tissue in the leaf veins


A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.

What aspect of photosynthesis was being tested?


Give technical term:

Name only one plant, you are familiar with which has no chlorophyll.


Complete the following sentence with appropriate word:

________ are regarded as complete photosynthetic units of plants.


Name two aquatic plants which can be used for the experiment of photosynthesis.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×