Home
Class 11
BIOLOGY
What is pulvinus ?...

What is pulvinus ?

Text Solution

AI Generated Solution

**Step-by-Step Solution:** 1. **Definition of Pulvinus**: A pulvinus is defined as a swollen leaf base. It is a structure that occurs at the junction where the leaf petiole meets the stem. 2. **Location and Structure**: The pulvinus is located at the base of the petiole, which is the stalk that attaches the leaf blade to the stem. It appears as a thickened, joint-like structure. 3. **Formation**: The formation of a pulvinus is due to changes in turgor pressure within the cells at the base of the petiole. Turgor pressure is the pressure exerted by the fluid inside the plant cells against the cell wall, which can cause swelling. ...
Promotional Banner

Topper's Solved these Questions

  • MORPHOLOGY OF FLOWERING PLANTS

    ICSE|Exercise Test Your Progress (Short/Long Answer Type Questions )|34 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    ICSE|Exercise Test Your Progress (HOTS)|4 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    ICSE|Exercise Test Your Progress (State whether the following statements are true or false ) |27 Videos

  • MORPHOLOGY AND ANATOMY OF DIFFERENT SYSTEM OF COCKROACH

    ICSE|Exercise Long Answer type Questions |6 Videos

  • NEURAL CONTROL AND CO-ORDINATION

    ICSE|Exercise NCERT EXERCISES WITH ANSWER (DIFFERENTIATE BETWEEN)|11 Videos

Similar Questions

Explore conceptually related problems

Response of plants due to reversibole turgor change in pulvinus as a result of touch is

What is sheathing base and a pulvinus in leaves?

What is spurious liquor ? What makes it harmful?

What is a null vector ? What is its use ?

What is tincture of iodine ? What is its use ?

Read the following statements about a leaf. Which amongst them are correct. I.The swollen leaf- base mainly seen in leguminous plants is called the pulvinus. II. The axillary bud arises from the axil formed by the leaf. III. The leaf shape and size differs from plant to plant.

Select the CORRECT statements from the following : (P) In monocots , leaf base expands into sheath covering the stem partially or wholly (Q) In all leguminous plants, the leaf base may become swollen , which is called the pulvinus (R) The lamina or leaf blade is green expanded part of the leaf with vein and veinlets (S) veins provide rigidity to leaf blade. (a) P and Q only (b) R and S only (c) All except Q (d) All

What is anaphylaxis? What are the symptoms of it?

What is a couple? What is its action?

What is teflon? What are its uses ?