English

Mention Two Ways in Which Photosynthesis is Useful to Life.

Advertisements
Advertisements

Question

Mention two ways in which photosynthesis is useful to life.

Short/Brief Note
Advertisements

Solution

Advantages of photosynthesis:
(a) To produce food for all the organisms on earth.
(b) Release oxygen which is a life supporting gas.

shaalaa.com
  Is there an error in this question or solution?
Chapter 6: Photosynthesis - Exercises [Page 85]

APPEARS IN

Frank Biology Part 2 [English] Class 10 ICSE
Chapter 6 Photosynthesis
Exercises | Q 17. (a) | Page 85

RELATED QUESTIONS

Give appropriate biological/technical terms for the following:

An apparatus that measures the rate of water uptake in a cut shoot due to transpiration.


Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 

What is meant by ‘Positive’ and ‘Negative’ tropic movements in plants? 


Define the following:

Organic food


Complete the following by filling in the blanks numbered 1 to 10 with the appropriate word/term:

Photosynthesis involves light reaction and dark reaction. During light reaction, the chlorophyll present in the (1) ______ gets activated by absorbing light energy. This energy splits (2) ______ molecules to (3) ______ and oxygen and releases two electrons. This process is called (4) ______. The (5) ______ ions are picked up by NADP to form (6) ______. The ADP is converted to (7) ______. This process is called (8) ______. During the dark phase, the compound produced at the end of the light reaction reacts with carbon dioxide to form (9) ______. This product is converted to starch. The process is called (10) ______.


What is the importance of photosynthesis in the life of the following:

Non-green plants


Explain the Term Calvin Cycle.


Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:

KOH absorbs CO2.


Choose the Correct Answer:
Compensation point means the condition:


Why should the light-dependent reaction occur before the light-independent reaction?


Study the diagram given below and fill in the blanks with suitable words:

In order to prove that carbon dioxide is necessary for

(a) ______, a potted plant is placed in dark for 48 hours to (b) ______ the leaves. A part of a leaf is inserted into a conical flask containing potassium hydroxide solution. This is to absorb (c) ______ from the flask. The plant is then placed in sunlight for a few hours. The experimental leaf is tested for starch. The part of the leaf that was inside the conical flask turns (d) ______, whereas the part of the left outside turns (e) ______ in colour.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×