English

Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer. Soaked seeds burst into three seed coats.

Advertisements
Advertisements

Questions

Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.

Soaked seeds burst into three seed coats.

Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.

Soaked seeds burst their seed coats.

Options

  • True

  • False

MCQ
True or False
Advertisements

Solution

This statement is true.

Explanation:

Yes, it is true that soaked seeds burst into three seed coat layers for germination. In some plants, the surface layer, middle layer, and inner layer make up a three-layered seed coat. So, when they are soaked in water, water is imbibed into the seeds and the seeds swell up, exerting pressure on the seed coat and burst the seed coats.

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Absorption by roots: The Processes Involved - Review Questions [Page 53]

APPEARS IN

Selina Concise Biology [English] Class 10 ICSE
Chapter 4 Absorption by roots: The Processes Involved
Review Questions | Q C. 3. (b) | Page 53

RELATED QUESTIONS

The diagram below represents a process in plants. The setup was placed in bright sunlight. Answer the following questions:

a) Name the physiological process depicted in the diagram.

Why was oil added to the water?

b) When placed in bright sunlight for four hours, what do you observe with regard to the initial and final weight of the plant? Give a suitable reason for your answer

c) What happens to the level of water when this setup is placed in:

  1. Humid conditions?
  2. Windy conditions?

d) Mention any three adaptations found in plants to overcome the process mentioned in (i).

e) Explain the term ‘Guttation’.


What is the difference between ‘flaccid’ and ‘turgid’? Give one example of flaccid condition in plants. 

 


Give reasons for the following:

If you sprinkle some common salt on grass growing on a lawn, it is killed at that spot.


Give reason for the following:

It is better to transplant seedlings in a flower-bed in the evening and not in the morning.


A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:

  1. Give the term for the state of the cell it has acquired.
  2. Name the structure which acts as a selectively permeable membrane.
  3. Comment on the nature (tonicity) of the liquid surrounding the cell.
  4. Name any one feature of this plant cell which is not present in an animal cell.
  5. Redraw in the space provided, the diagram of the cell if it is soon placed in ordinary water for some time.

Differentiate between the following
Turgor pressure and Root pressure


The below diagram represents a plant cell after being placed in a strong sugar solution. Guidelines 1 to 5 indicate the following:

1. Cell wall
2. Plasma membrane.
3. Protoplasm
4. Large vacuole
5. Nucleus
Study the diagram and answer the questions that follow :
(i) What is the state of the cell shown in the diagram?
(ii) Name the structure which acts as a selectively permeable membrane.
(iii) If the cell had been placed in distilled water instead of a strong sugar solution which features: would not have been present?
(iv) If the cell in the diagram possessed chloroplasts where would these be present?
(v) Name any one feature of this plant cell which is not present in animal cells.


Give Technical Term for the following.
A cell in a fully extended condition.


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

Flaccidity is the reverse of turgidity.


The hydrostatic pressure of the cell sap on the cell wall is called ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×