Advertisements
Advertisements
Question
To which directional stimuli do
- roots respond
- shoots respond?
Solution
- Roots respond positively geostrophic and negatively phototrophic.
- Shoots respond negatively geostrophic and positively phototrophic.
APPEARS IN
RELATED QUESTIONS
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
Match the terms of column I with those in column II:
Column I | Column II |
(i) Stomata closed | (a) decomposers |
(ii) Autotrophs | (b) light reaction |
(iii) By-products of photosynthesis | (c) animals |
(iv) Photolysis | (d) during night |
(v) Bacteria and fungi | (e) green plants |
( f) oxygen |
Choose the correct answer:
Which one of the following is the best reason for leaving a plant in a dark place before carrying out experiments on photosynthesis?
What are the basic requirements of photosynthesis?
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The raw materials for photosynthesis include water and CO2.
Where do the light-dependent reaction and the Calvin cycle occur in the chloroplast?
The minerals like nitrogen, potassium, and phosphorus, which are required in substantial quantity by the plants are called ______.
Name the minute openings seen on the lower surface of the leaf.
Study the pictures below and then complete the table by putting a plus (+) if the shoot or root grows towards the stimulus and a minus (-) if it grows away from it.
Stimulus | Light | Gravity |
Shoot | + | - |
Root | ? | + |
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?