English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

State whether true or false. If false, correct the statement. Photosynthesis is important in releasing oxygen to keep the atmosphere in balance.

Advertisements
Advertisements

Question

State whether true or false. If false, correct the statement.

Photosynthesis is important in releasing oxygen to keep the atmosphere in balance.

Options

  • True

  • False

MCQ
True or False
Advertisements

Solution

Photosynthesis is important in releasing oxygen to keep the atmosphere in balance- True

shaalaa.com
  Is there an error in this question or solution?
Chapter 19: Plant Physiology - Exercise [Page 231]

APPEARS IN

Samacheer Kalvi Science [English] Class 9 TN Board
Chapter 19 Plant Physiology
Exercise | Q IV. 5. | Page 231

RELATED QUESTIONS

Put a tick (✓ ) against the most appropriate alternative in the following statement. 

Stomata are present on the surface of:


Describe an experiment to prove that sunlight is necessary for photosynthesis.


A potted destarched plant was taken in order to prove that light is necessary for photosynthesis.
(i) What is meant by 'destarched plant'? How can it be destarched?
(ii) Using the destarched plant describe step by step how you would proceed to prove that in the absence of light the leaf cannot manufacture starch.


Identify the false statements and rewrite them correctly by changing the first or last word only.

Starch produced in a leaf remains stored in it for 2-3 weeks before it is used by other parts of the plant.


Enumerate the steps involved in testing a green leaf for the presence of starch.


A leaf is a food factory. Explain.


On a bright sunny day, water weeds growing in an aquarium were actively giving off bubbles of gas. Use this information to answer questions that follow:

  1. Name the process occurring in the water weed that has resulted in the evolution of these bubbles.
  2. Of what gas do these bubbles consist?
  3. Briefly describe the reactions occurring in the leaves of the water weeds leading to the evolution of these bubbles.
  4. Give an overall balanced chemical equation to represent the process named in (i) above.

State whether true or false. If false, correct the statement.

Photosynthesis produces glucose and carbon dioxide.


______ food is made in their green stems.


Can the stem of a plant be compared with a street with two-way traffic? Give reason.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×