Advertisements
Advertisements
Question
An experiment was set up as shown in the figure alongside. Look at the figure and answer the following questions:
( i) What is the objective of this experiment?
( ii ) Which plant is used in this experiment?
( iii ) Which gas is evolved in this process?
( iv ) What will happen to the rate of evolution of this gas if a pinch of sodium
bicarbonate is added?
(v ) What will happen if the apparatus is kept in dark?
Solution
(i) The objective of this experiment is to prove that oxygen is released during photosynthesis.
(ii) Hydrilla
(iii) Oxygen
(iv) The rate of photosynthesis will increase and the rate of bubbling also increases when sodium bicarbonate is added.
(v) Photosynthesis will not take place.
APPEARS IN
RELATED QUESTIONS
The diagrams given below represent the relationship between a mouse and a physiological process that occurs in green plants. Study the diagrams and answer the questions that follow
(i) Name the physiological process occurring in the green plant that has kept the mouse alive.
(ii) Explain the physiological process mentioned above.
(iii) Why did the mouse die in bell jar B?
(iv) What is the significance of the process as stated in (i) for life on earth?
(v) Represent the above mentioned physiological process in the form of a chemical equation.
Expand the following biological abbreviations :
ATP
State the main functions of the following:
Medulla Oblongata
Fill in the blank:
Xanthophyll is ______ coloured pigment.
Fill in the blank:
CO2 enters the leaf through ______.
If the rate of respiration becomes more than the rate of photosynthesis, plants will:
Identify the false statement and rewrite it correctly by changing the first or last word only.
Green plants perform photosynthesis.
The site of light reaction in the cells of a leaf is ______.
Are the following statement true or false? Give a reason in support of your answer.
Photosynthesis is considered as a process supporting all life on earth.
How do non-green plants such as fungi and bacteria obtain their nourishment?
What is meant by the photolysis of water?
Explain the Term Calvin Cycle.
Give technical term:
What does ATP abbreviate for?
Choose the Correct Answer:
A plant is kept in a dark cupboard for about 48 hours before conducting any experiment on photosynthesis to:
Photosynthesis converts energy X into energy Y.
- What are X and Y?
- Green plants are autotrophic in their mode of nutrition. Why?
Only green plants have the unique capacity to release ______ into the atmosphere.
Plants may inhale carbon dioxide for photosynthesis but need ______ for their living.
Label the diagram with the raw materials and products of photosynthesis.
An organism A which cannot move from one place to another makes a simple food B from the substances C and D available in the environment. This food is made in the presence of green-colored substance E present in organs F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. Does this food give a blue-black color with iodine solution?
a. What is
- organism A
- food B?
- food H?
b. What are C and D?
c. Name green-colored substance E and organ F.
d. What is the process G?
Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:
Snake, Rabbit, Cabbage, Hawk.
